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| Product | Description | |
|---|---|---|
| (11 β,16 β)-11,21-bis(acetyloxy)-2'-methyl-5'H-pregna-1,4-dieno[17,16-d]oxazole-3,20-dione. (Deflazacort Impurity) | (11 β,16 β)-11,21-bis(acetyloxy)-2'-methyl-5'H-pregna-1,4-dieno[17,16-d]oxazole-3,20-dione, is an impurity of Deflazacort, which is a systemic corticosteroid, used for rheumatoid arthritis and lupus. Group: Biochemicals. Grades: Highly Purified. CAS No. 710951-92-1. Pack Sizes: 10mg, 100mg. Molecular Formula: C27H33NO7, Molecular Weight: 483.55. US Biological Life Sciences. |  Worldwide |
| Acetylcysteine Impurity 14 DiHCl | S-(2-acetimidamidoethyl)-L-homocysteine Hydrochloride is one of Acetylcysteine impurities. It has potential anticancer activity against tumor cell growth. Synonyms: S-(2-acetimidamidoethyl)-L-homocysteine, hydrochloride (1:2). CAS No. 438542-17-7. Molecular formula: C8H17N3O2S.2HCl. Mole weight: 292.23. |  |
| Acetylcysteine Impurity 19 | Acetylcysteine Impurity 19. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: sodium 2-methyl-4,5-dihydrothiazole-4-carboxylate. CAS No. 15058-19-2. Molecular formula: C5H6NNaO2S. Mole weight: 167.16. Catalog: APB15058192. |  |
| Acetylcysteine Impurity 3 | (2R)-2-acetamido-3-sulfopropanoic acid is one of Acetylcysteine impurities. It has potential anticancer activity against tumor cell growth. Synonyms: acetyl(sulfo)-D-alanine. CAS No. 79560-92-2. Molecular formula: C5H9NO6S. Mole weight: 211.19. | |
| Acetylcysteine Impurity 4 Disodium Salt | Acetylcysteine Impurity 4 Disodium Salt is one of Acetylcysteine impurities. It has potential anticancer activity against tumor cell growth. Synonyms: Acetyl(sulfinato)-D-alaninate, sodium salt (1:2). Molecular formula: C5H7NO5SNa2. Mole weight: 239.16. | |
| Acetylcysteine Impurity 6 | Acetylcysteine Impurity 6 is one of Acetylcysteine impurities. It has potential anticancer activity against tumor cell growth. Molecular formula: C5H9NO3S. Mole weight: 163.19. | |
| Acetylcysteine Impurity 7 | Acetylcysteine Impurity 7. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 66185-37-3(HCl salt); (R)-3-(acetylthio)-2-aminopropanoic acid. CAS No. 15312-11-5. Molecular formula: C5H9NO3S. Mole weight: 163.19. Catalog: APB15312115. | |
| Acetylcysteine Impurity 8 | N-Acetyl-S-(3-amino-2-hydroxy-3-oxopropyl)-L-cysteineis one of Acetylcysteine impurities. It has potential anticancer activity against tumor cell growth. Synonyms: N-Acetyl-S-(2-carbamoyl-2-hydroxyethyl)cysteine; SCHEMBL21490409; DTXSID401025770; 137698-08-9; N-acetyl-S-(2-carbamoyl-2-hydroxyethyl)-cysteine; Q58328438. CAS No. 137698-08-9. Molecular formula: C8H14N2O5S. Mole weight: 250.27. | |
| Acetylcysteine Impurity 9 Sodium Salt | Acetylcysteine Impurity 9 Sodium Salt is one of Acetylcysteine impurities. It has potential anticancer activity against tumor cell growth. Synonyms: N-Acetyl-S-(3-hydroxypropyl)-L-cysteine, sodium salt (1:1). Molecular formula: C8H14NO4SNa. Mole weight: 243.26. | |
| Acetylcysteine Impurity D | N,S-Diacetyl-L-cysteine is a double-prodrugs of L-cysteine: differential protection against acetaminophen-induced hepatotoxicity in mice. Synonyms: N,S-Diacetyl-L-cysteine; N-Acetylcysteine Acetate; Dacisteine; N,S-Diacetylcysteine; N-Acetylcysteine S-Acetate. Grades: > 95%. CAS No. 18725-37-6. Molecular formula: C7H11NO4S. Mole weight: 205.23. | |
| Acetylglycinamide Impurity A | An impurity of Acetylglycinamide. Synonyms: N-(2,6-dioxopiperidin-3-yl)acetamide; Acetamide, N-(2,6-dioxo-3-piperidinyl)-. Grades: > 95%. CAS No. 1468-52-6. Molecular formula: C7H10N2O3. Mole weight: 170.17. | |
| Acetylglycinamide Impurity B | An impurity of Acetylglycinamide. Synonyms: Glutarimide; 2,6-Diketopiperidine. Grades: > 95%. CAS No. 1121-89-7. Molecular formula: C5H7NO2. Mole weight: 113.12. | |
| Acetylsalicylic Acid Impurity B | A metabolite of Acetylsalicylic Acid. Synonyms: Aspirin Impurity B. Grades: > 95%. CAS No. 636-46-4. Molecular formula: C8H6O5. Mole weight: 182.13. | |
| Acetylsalicylic Acid Impurity D | A metabolite of Acetylsalicylic Acid. Synonyms: Aspirin Impurity D. Grades: > 95%. CAS No. 530-75-6. Molecular formula: C16H12O6. Mole weight: 300.27. | |
| Acetylsalicylic Acid Impurity E | Sasapyrine (salsalate) is a nonsteroidal oral anti-inflammatory agent.Relative to other NSAIDs, salsalate has a weak inhibitory effect on the cyclooxygenase enzyme and decreases the production of several pro inflammatory chemical signals such as interleukin-6, TNF-alpha, and C-reactive protein. Synonyms: NSC-49171. Grades: >98%. CAS No. 552-94-3. Molecular formula: C14H10O5. Mole weight: 258.23. | |
| Acetylsalicylic Acid Impurity F | A metabolite of Acetylsalicylic Acid. Synonyms: Aspirin Impurity F. Grades: > 95%. CAS No. 1466-82-6. Molecular formula: C18H14O7. Mole weight: 342.3. | |
| Celecoxib impurity (N-Acetyl-4-(2-Aminoethyl)-Benzenesulfonamide) | N-[2-[4-(Aminosulfonyl)phenyl]ethyl]-acetamide is used in the synthesis of sulfonylurea and thiourea derivatives substituted with benzenesulfonamide groups that can be used as potential hypoglycemic agents. Synonyms: N-p-Sulfamoylphenethyl-acetamide; 4-(2-Acetylaminoethyl)benzenesulfonamide; N-(p-Sulfamoylphenethyl)acetamide. Grades: > 95%. CAS No. 41472-49-5. Molecular formula: C10H14N2O3S. Mole weight: 242.3. | |
| Duloxetine EP Impurity F (Duloxetine 3-Acetyl) HCl | An isomeric impurity of the antidepressant Duloxetine. Synonyms: (S)-N-Methyl-3-(naphthalen-1-yloxy)-3-(thiophen-3-yl)propan-1-amine Hydrochloride. Grades: > 95%. CAS No. 1104890-90-5. Molecular formula: C18H19NOS·HCl. Mole weight: 333.88. | |
| Famciclovir N-Acetyl Impurity | An impurity of Famciclovir. Famciclovir is used for the treatment of various herpesvirus infections, most commonly for herpes zoster. Synonyms: N-Acetyl Famciclovir; 2-(2-(2-Acetamido-9H-purin-9-yl)ethyl)propane-1,3-diyl Diacetate. Grades: > 95%. Molecular formula: C16H21N5O5. Mole weight: 363.38. | |
| Linagliptin N-Acetyl Impurity | An impurity of Linagliptin. Linagliptin is a dipeptidyl peptidase-4 inhibitor with a hpyerglycemic activity. It was approved for the treatment of diabetes mellitus type 2. Synonyms: (R)-N-(1-(7-(But-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)acetamide. Grades: 95%. CAS No. 1803079-49-3. Molecular formula: C27H30N8O3. Mole weight: 514.58. | |
| Lopinavir N-Acetylphenoxyacetamide Impurity | Grades: > 95%. Molecular formula: C30H36N2O4. Mole weight: 488.63. | |
| Neomycin Sulfate EP Impurity B (3-Acetylneamine) | An impurity of Neomycin, which is an aminoglycoside antibiotic found in many topical medications. Synonyms: 3-Acetylneamine; 3-N-acetyl-2-deoxy-4-O-(2,6-diamino-2,6-dideoxy-d-glucopyranosyl)-d-streptamine (3-acetylneamine). Grades: > 95%. Molecular formula: C14H28N4O7. Mole weight: 364.4. | |
| Nintedanib Acetyl Impurity | An impurity of Nintedanib, a receptor tyrosine kinase (RTK) inhibitor that binds to vascular endothelial growth factor receptor, fibroblast growth factor receptor and platelet derived growth factor receptor. Nintedanib is used as a medication for the treatment of idiopathic pulmonary fibrosis. Synonyms: (3Z)-1H-Indole-6-carboxylic acid, 3-[[[4- (acetylmethylamino) phenyl]amino]phenylmethylene]-2, 3-dihydro-2-oxo-, methyl ester. Grades: ≥95%. CAS No. 1139458-48-2. Molecular formula: C26H23N3O4. Mole weight: 441.48. | |
| N,N'-[(2-Hydroxypropane-1,3-diyl)bis[oxy(3-acetyl-1,4-phenylene)]]dibutanamide (Acebutolol Impurity) | N,N'-[(2-Hydroxypropane-1,3-diyl)bis[oxy(3-acetyl-1,4-phenylene)]]dibutanamide (Acebutolol Impurity). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Acebutolol Hydrochloride Imp. H (EP), N,N'-[(2-Hydroxypropane-1,3-diyl)bis[oxy(3-acetyl-1,4-phenylene)]]dibutanamide, Acebutolol Imp. H (EP). CAS No. 1329613-31-1. Pack Sizes: 10MG. IUPAC Name: N-[3-acetyl-4-[3-[2-acetyl-4-(butanoylamino)phenoxy]-2-hydroxypropoxy]phenyl]butanamide. Molecular formula: C27H34N2O7. Mole weight: 498.57. Catalog: APS1329613311A. SMILES: CCCC(=O)Nc1ccc(OCC(O)COc2ccc(NC(=O)CCC)cc2C(=O)C)c(c1)C(=O)C. Format: Neat. Shipping: Room Temperature. | |
| Paclitaxel Oxetane Ring-Opened 3-Acetyl 4-Benzoyl Impurity | Paclitaxel Oxetane Ring-Opened 3-Acetyl 4-Benzoyl Impurity is an impurity of Paclitaxel, which is a mitotic inhibitor used in cancer chemotherapy. Synonyms: Benzenepropanoic acid, β-(benzoylamino)-α-hydroxy-, (1S,3S,4S,4aR,5S,6S,8S,11R,12aS)-3,11-bis(acetyloxy)-4-[(benzoyloxy)methyl]-1,2,3,4,4a,5,6,7,8,11,12,12a-dodecahydro-1,4,5,6-tetrahydroxy-9,12a,13,13-tetramethyl-12-oxo-6,10-methanobenzocyclodecen-8-yl ester, (αR,βS)-; (1S,3S,4S,4aR,5S,6S,8S,11R,12aS)-3,11-Bis(acetyloxy)-4-[(benzoyloxy)methyl]-1,2,3,4,4a,5,6,7,8,11,12,12a-dodecahydro-1,4,5,6-tetrahydroxy-9,12a,13,13-tetramethyl-12-oxo-6,10-methanobenzocyclodecen-8-yl (αR,βS)-β-(benzoylamino)-α-hydroxybenzenepropanoate; β-(Benzoylamino)-α-hydroxybenzenepropanoic acid (αR,βS)-(1S,3S,4S,4aR,5S,6S,8S,11R,12aS)-3,11-bis(acetyloxy)-4-[(benzoyloxy)methyl]-1,2,3,4,4a,5,6,7,8,11,12,12a-dodecahydro-1,4,5,6-tetrahydroxy-9,12a,13,13-tetramethyl-12-oxo-6,10-methanobenzocyclodecen-8-yl ester; Paclitaxel EP Impurity M (5S-isomer); Paclitaxel Oxetane ring opened, acetyl and benzoyl migrated; (1S, 2S, 3R, 4S, 5S, 7S, 8S, 10R, 13S)-5, 10-diacetyloxy-1, 2, 4, 7-tetrahydroxy-8, 12, 15, 15-tetramethyl-9-oxo-4-(phenylcarbonyloxymethyl)tricyclo[9. 3. 1. 03, 8]pentadec-11-en-13-yl (2R,3S)-2-hydroxy-3-phenyl-3-(phenylcarbonylamino)propanoate. Grades: ≥95%. CAS No. 932042-85-8. Molecular formula: C47H53NO15. Mole weight: 871.94. | |
| Prasugrel Acetyl Impurity | An impurity of Prasugrel.Prasugrel is a platelet inhibitor. It can be used to prevent formation of blood clots. Synonyms: 5-(1-(2-Fluorophenyl)-2-oxopropyl]-4,5,6,7-tetrahydrothieno[3,2-c]pyridin-2-yl)acetate. Grades: > 95%. CAS No. 1443034-67-0. Molecular formula: C18H18FNO3S. Mole weight: 347.41. | |
| Prasugrel N-Acetyl Impurity | An impurity of Prasugrel.Prasugrel is a platelet inhibitor. It can be used to prevent formation of blood clots. Grades: > 95%. Molecular formula: C18H20FNO3S. Mole weight: 349.43. | |
| Propranolol N-Acetyl Impurity | An impurity of Propranolol.Propranolol is Beta 1 adrenergic receptor antagonist. It can be used for the treatment of high blood pressure, a number of types of irregular heart rate, thyrotoxicosis, capillary hemangiomas, performance anxiety, and essential tremors. Synonyms: N-Acetylpropranolol; 2007-11-6; Propranolol N-Acetyl Impurity; AW44QKZ2SH; N-(2-hydroxy-3-(naphthalen-1-yloxy)propyl)-n-isopropylacetamide; N-(2-hydroxy-3-naphthalen-1-yloxypropyl)-N-propan-2-ylacetamide; Acetamide, N-(2-hydroxy-3-(1-naphthalenyloxy)propyl)-N-(1-methylethyl)-; UNII-AW44QKZ2SH; SCHEMBL9330158; DTXSID40942091; F19345; N-{2-Hydroxy-3-[(naphthalen-1-yl)oxy]propyl}-N-(propan-2-yl)acetamide. Grades: > 95%. CAS No. 2007-11-6. Molecular formula: C18H23NO3. Mole weight: 301.39. | |
| Tofacitinib Impurity (N-Des-(2-Cyanide-acetyl)-(3R,4S)) | One of the impurities of Tofacitinib, which is a Janus kinase inhibitor and could be used against rheumatoid arthritis. Synonyms: N-Des-(2-Cyanide-acetyl)-(3R,4S). Molecular formula: C13H19N5. Mole weight: 245.33. | |
| Tofacitinib Impurity (N-Des-(2-Cyanide-acetyl)-(3S,4R)) | One of the impurities of Tofacitinib, which is a Janus kinase inhibitor and could be used against rheumatoid arthritis. Synonyms: N-Des-(2-Cyanide-acetyl)-(3S,4R). Molecular formula: C13H19N5. Mole weight: 245.33. | |
| 10-Desacetyl Paclitaxel | 10-Desacetyl Paclitaxel. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 7,11-Methano-1H-cyclodeca[3,4]benz[1,2-b]oxete, benzenepropanoic acid deriv., 10-Deacetylpaclitaxel, 10-Deacetyltaxol, 10-Desacetylpaclitaxel, 10-O-Deacetyltaxol,Benzenepropanoic acid, ?-(benzoylamino)-?-hydroxy-, (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,6,11-trihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl ester, (?R,?S)-, Benzenepropanoic acid, ?-(benzoylamino)-?-hydroxy-, 12b-(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,6,11-trihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl ester, [2aR-[2a?,4?,4a?,6?,9?(?R*,?S*),11?,12?,12a?,12b?]]-, 10-Deacetyltaxol A, 10-Desacetyltaxol. CAS No. 78432-77-6. Molecular formula: C45H49NO13. Mole weight: 811.87. Catalog: APS78432776. SMILES: CC(=O)O[C@@]12CO[C@@H]1C[C@H](O)[C@]3(C)[C@@H]2[C@H](OC(=O)c4ccccc4)[C@]5(O)C[C@H](OC(=O)[C@H](O)[C@@H](NC(=O)c6ccccc6)c7ccccc7)C(=C([C@@H](O)C3=O)C5(C)C)C. Format: Neat. | |
| 10-Methyl-7-(2-hydroxy-3-N-Boc-3-phenylpropionyl) Docetaxel | 10-Methyl-7-(2-hydroxy-3-N-Boc-3-phenylpropionyl) Docetaxel is an impurity of Docetaxel, which is a semisynthetic derivative of Paclitaxel used to treat a variety of cancers, including breast, head and neck, stomach, prostate, and non-small cell lung cancer. Synonyms: (2α, 5β, 7β, 10β, 13α)-4-Acetoxy-1-hydroxy-7, 13-bis{[(2R, 3S)-2-hydroxy-3-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)-3-phenylpropanoyl]oxy}-10-methoxy-9-oxo-5, 20-epoxytax-11-en-2-yl benzoate; Benzenepropanoic acid, β-[[(1,1-dimethylethoxy)carbonyl]amino]-α-hydroxy-, (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-11-hydroxy-6-methoxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxete-4,9-diyl ester, (αR,βS)-. Molecular formula: C58H72N2O18. Mole weight: 1085.19. | |
| 10-(O-2,2-Dichloroethoxycarbonyl) 13-(3-O-TES) 7-Epi Docetaxel | 10-(O-2,2-Dichloroethoxycarbonyl) 13-(3-O-TES) 7-Epi Docetaxel is an impurity of Docetaxel, which is a semisynthetic derivative of Paclitaxel used to treat a variety of cancers, including breast, head and neck, stomach, prostate, and non-small cell lung cancer. Synonyms: (2α, 5β, 7α, 10β, 13α)-4-Acetoxy-10-{[(2, 2-dichloroethoxy)carbonyl]oxy}-1, 7-dihydroxy-13-({(2R, 3S)-3-({[(2-methyl-2-propanyl)oxy]carbonyl}amino)-3-phenyl-2-[(triethylsilyl)oxy]propanoyl}oxy)-9-oxo-5, 20-epoxytax-11-en-2-yl benzoate; Benzenepropanoic acid, β-[[(1,1-dimethylethoxy)carbonyl]amino]-α-[(triethylsilyl)oxy]-, (2aR,4R,4aS,6R,9S,11S,12S,12aR,12bS)-12b-(acetyloxy)-12-(benzoyloxy)-6-[[(2,2-dichloroethoxy)carbonyl]oxy]-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl ester, (αR,βS)-. Molecular formula: C52H69Cl2NO16Si. Mole weight: 1063.09. | |
| 11, 11'- (2, 2'- (Piperazine-1, 4-diyl)bis (acetyl))bis (5H-benzo[e]pyrido[3, 2-b][1, 4]diazepin-6 (11H)-one)-d8 | 11, 11'- (2, 2'- (Piperazine-1, 4-diyl)bis (acetyl))bis (5H-benzo[e]pyrido[3, 2-b][1, 4]diazepin-6 (11H)-one)-d8 is an labelled dimer impurity of labelled Pirenzepine (P508502), an antiulcerative agent. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 5mg. Molecular Formula: C32H20D8N8O4, Molecular Weight: 596.669999999999. US Biological Life Sciences. | Worldwide |
| 11,21-Didehydro-(9 β,11 β)-epoxy-21-(acetyloxy) Desoxymetasone | 11,21-Didehydro-(9 β,11 β)-epoxy-21-(acetyloxy) Desoxymetasone is an impurity of Desoxymetasone (D296970) which is anti-inflammatory. Group: Biochemicals. Grades: Highly Purified. CAS No. 52092-65-6. Pack Sizes: 1mg, 2mg. Molecular Formula: C24H30O5. US Biological Life Sciences. | Worldwide |
| 11,21-Didehydro-(9 β,11 β)-epoxy-21-(acetyloxy) Desoxymetasone-d3 | 11,21-Didehydro-(9 β,11 β)-epoxy-21-(acetyloxy) Desoxymetasone-d3 is labelled 11,21-Didehydro-(9 β,11 β)-epoxy-21-(acetyloxy) Desoxymetasone (D439455), an impurity of Desoxymetasone (D296970) which is anti-inflammatory. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 2.5mg, 25mg. Molecular Formula: C24H27D3O5, Molecular Weight: 401.51. US Biological Life Sciences. | Worldwide |
| (11β,16α)-11-Hydroxy-16-methyl-17,21-bis(1-oxoacetoxy)-pregna-1,4-diene-3,20-dione | (11β,16α)-11-Hydroxy-16-methyl-17,21-bis(1-oxoacetoxy)-pregna-1,4-diene-3,20-dione is an impurity of Prednisolone, which is a glucocorticoid and an anti-inflammatory drug used to treat central nervous system disorders. Synonyms: [2-[(8S,9S,10R,11S,13S,14S,16R,17R)-17-acetyloxy-11-hydroxy-10,13,16-trimethyl-3-oxo-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-yl]-2-oxoethyl] acetate. Molecular formula: C26H34O7. Mole weight: 458.54. | |
| 11beta,17,21-Trihydroxypregna-4,6-diene-3,20-dione 21-Acetate | 11beta,17,21-Trihydroxypregna-4,6-diene-3,20-dione 21-Acetate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 11?,17,21-Trihydroxypregna-4,6-diene-3,20-dione 21-Acetate,Pregna-4,6-diene-3,20-dione, 21-(acetyloxy)-11,17-dihydroxy-, (11?)- (9CI), Pregna-4,6-diene-3,20-dione, 11?,17,21-trihydroxy-, 21-acetate (6CI,7CI,8CI), ?6-Cortisol 21-acetate. CAS No. 21940-45-4. IUPAC Name: [2-[(8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-10,13-dimethyl-3-oxo-2,8,9,11,12,14,15,16-octahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-oxoethyl] acetate. Molecular formula: C23H30O6. Mole weight: 402.48. Catalog: APS21940454. SMILES: CC(=O)OCC(=O)[C@@]1(O)CC[C@H]2[C@@H]3C=CC4=CC(=O)CC[C@]4(C)[C@H]3[C@@H](O)C[C@]12C. Format: Neat. Shipping: Room Temperature. | |
| (11β,17Z)-20-(Acetyloxy)-11-hydroxy-3-oxopregna-1,4,17(20)-trien-21-al | (11β,17Z)-20-(Acetyloxy)-11-hydroxy-3-oxopregna-1,4,17(20)-trien-21-al, is an impurity of Prednisolone, which is a synthetic glucocorticoid, a derivative of cortisol, and can be used to treat a variety of inflammatory and auto-immune conditions. Synonyms: (11?,17Z)-20-(Acetyloxy)-11-hydroxy-3-oxopregna-1,4,17(20)-trien-21-al; 118866-09-4. CAS No. 118866-09-4. Molecular formula: C23H28O5. Mole weight: 384.46. | |
| 11-Deoxyprednisone Acetate | 11-Deoxyprednisone Acetate. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Pregna-1,4-diene-3,20-dione, 21-(acetyloxy)-17-hydroxy-, 21-Acetoxy-17-hydroxypregna-1,4-diene-3,20-dione, 11-Deoxyprednisone acetate, 21-(Acetyloxy)-17-hydroxypregna-1,4-diene-3,20-dione, Pregna-1,4-diene-3,20-dione, 17,21-dihydroxy-, 21-acetate (6CI,7CI,8CI), NSC 18314. CAS No. 1249-67-8. IUPAC Name: [2-[(8R,9S,10R,13S,14S,17R)-17-hydroxy-10,13-dimethyl-3-oxo-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-yl]-2-oxoethyl] acetate. Molecular formula: C23H30O5. Mole weight: 386.48. Catalog: APS1249678. SMILES: CC(=O)OCC(=O)[C@@]1(O)CC[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@H]3CC[C@]12C. Format: Neat. | |
| 1,1-Dibenzyl-4-[(5,6-dimethoxy-1-oxo-2,3-dihydro-1H-inden-2-yl)methyl]-1-piperidinium Bromide | Donepezil impurity. Uses: 4-[(2,3-dihydro-5,6-dimethoxy-1-oxo-1h-inden-2-yl)methyl]-1,1-bis(phenylmethyl)piperidinium is an isotope labelled impurity in the synthesis of donepezil (d531750), an inhibitor of acetylcholinesterase. Synonyms: 2-[[1,1-bis(phenylmethyl)-4-piperidin-1-iumyl]methyl]-5,6-dimethoxy-2,3-dihydroinden-1-one;bromide; 2-[(1,1-dibenzylpiperidin-1-ium-4-yl)methyl]-5,6-dimethoxy-2,3-dihydroinden-1-one;bromide. Grades: > 95 %. CAS No. 844694-85-5. Molecular formula: C31H36BrNO3. Mole weight: 550.53. | |
| 1-[2-(2,3-Dihydro-5-benzofuranyl)ethyl]-α,α-diphenyl-3-pyrrolidineacetic Acid | 1-[2-(2,3-Dihydro-5-benzofuranyl)ethyl]-α,α-diphenyl-3-pyrrolidineacetic Acid is an impurity of Darifenacin (D193400), a medication to treat urinary incontinence. It works by blocking the M3 muscarinic acetylcholine receptor. Group: Biochemicals. Grades: Highly Purified. CAS No. 1048979-16-3. Pack Sizes: 5mg, 10mg. Molecular Formula: C28H29NO3, Molecular Weight: 427.53. US Biological Life Sciences. | Worldwide |
| 1-(2,3-Dihydro-7-benzofuranyl)ethanone | 1-(2,3-Dihydro-7-benzofuranyl)ethanone is an impurity in the synthesis of Darifenacin (D193400, HBr); a medication used to treat urinary incontinence. It works by blocking the M3 muscarinic acetylcholine receptor. Group: Biochemicals. Grades: Highly Purified. CAS No. 170730-06-0. Pack Sizes: 100mg, 250mg. Molecular Formula: C10H10O2, Molecular Weight: 162.19. US Biological Life Sciences. | Worldwide |
| 1-[2-[5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetyl]-4-piperidinecarbothioamide | 1-[2-[5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetyl]-4-piperidinecarbothioamide. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1003319-95-6. Molecular formula: C13H17F3N4OS. Mole weight: 334.36. Catalog: APB1003319956. | |
| 1,2-bis(4-methylpiperazin-1-yl)ethanone | An impurity of Nintedanib, a receptor tyrosine kinase (RTK) inhibitor that binds to vascular endothelial growth factor receptor, fibroblast growth factor receptor and platelet derived growth factor receptor. Nintedanib is used as a medication for the treatment of idiopathic pulmonary fibrosis. Synonyms: Piperazine, 1-methyl-4-[(4-methyl-1-piperazinyl)acetyl]-(5CI); Nintedanib Impurity E. Grades: ≥95%. CAS No. 856843-88-4. Molecular formula: C12H24N4O. Mole weight: 240.35. | |
| 1,2-Dehydro-3-oxo Rocuronium Bromide | 1,2-Dehydro-3-oxo Rocuronium Bromide. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 1-[17?-Acetoxy-2-(morpholin-4-yl)-3-oxo-5?-androst-1-en-16?-yl]-1-(prop-2-enyl)pyrrolidinium Bromide,Pyrrolidinium, 1-[(5?,16?,17?)-17-(acetyloxy)-2-(4-morpholinyl)-3-oxoandrost-1-en-16-yl]-1-(2-propen-1-yl)-, bromide (1:1). CAS No. 1190105-67-9. IUPAC Name: [(5S,8R,9S,10S,13S,14S,16S,17R)-10,13-dimethyl-2-morpholin-4-yl-3-oxo-16-(1-prop-2-enylpyrrolidin-1-ium-1-yl)-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate;bromide. Molecular formula: C32H49N2O4.Br. Mole weight: 605.65. Catalog: APS1190105679. SMILES: [Br-].CC(=O)O[C@H]1[C@H](C[C@H]2[C@@H]3CC[C@H]4CC(=O)C(=C[C@]4(C)[C@H]3CC[C@]12C)N5CCOCC5)[N+]6(CC=C)CCCC6. Format: Neat. | |
| 1,2-Dehydroprogesterone | 1,2-Dehydroprogesterone. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: NSC 63538, Progesterone Imp. J (EP), ?1-Progesterone,Pregna-1,4-diene-3,20-dione, 1-Dehydroprogesterone, 1,2-Dehydroprogesterone. CAS No. 1162-54-5. IUPAC Name: (8S,9S,10R,13S,14S,17S)-17-acetyl-10,13-dimethyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-3-one. Molecular formula: C21H28O2. Mole weight: 312.45. Catalog: APS1162545. SMILES: CC(=O)[C@H]1CC[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@H]3CC[C@]12C. Format: Neat. | |
| 1-[2-(Trifluoromethyl)-10H-phenothiazin-10-yl]ethanone | 1-[2-(Trifluoromethyl)-10H-phenothiazin-10-yl]ethanone is an intermediate for the synthesis of Fluphenazine, which is a phenothiazine antipsychotic, a dopaminergic antagonist and an antiviral agent. Synonyms: 1-[2-(trifluoromethyl)phenothiazin-10-yl]ethanone; 2-(Trifluoromethyl)-10-acetyl-10H-phenothiazine; 10-Acetyl-2-(trifluoromethyl)phenothiazine; 10-Acetyl-2-(trifluoromethyl)-10H-phenothiazine; Ethanone, 1-[2-(trifluoromethyl)-10H-phenothiazin-10-yl]-; Fluphenazine Decanoate Impurity 16. Grades: ≥95%. CAS No. 1554-60-5. Molecular formula: C15H10F3NOS. Mole weight: 309.31. | |
| 1,3,5-Tri-O-acetyl-2-deoxy-D-ribose (Major) | 1,3,5-Tri-O-acetyl-2-deoxy-D-ribose is used in the chemoenzymic preparation of nucleosides. It is also an intermediate int he synthesis of 2-Deoxy-D-α-ribopyranosyl-5-azacytosine which is an isomer of 2-Deoxy-D- β-ribopyranosyl-5-azacytosine (D253525), an impurity of Decitabine and potentially carcinogenic. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg, 25mg. Molecular Formula: C11H16O7. US Biological Life Sciences. | Worldwide |
| 1,3-Bis(2-acetyl-3-hydroxyphenoxy)-2-hydroxypropane | 1,3-Bis(2-acetyl-3-hydroxyphenoxy)-2-hydroxypropane is an impurity in the synthesis of Sodium Cromoglycate (C815000), a chromone complex which blocks mast cell degranulation. Group: Biochemicals. Grades: Highly Purified. CAS No. 16150-44-0. Pack Sizes: 25mg, 100mg. Molecular Formula: C19H20O7. US Biological Life Sciences. | Worldwide |
| 1-(3-Methoxyphenyl)ethanol | A impurity of Rivastigmine.Rivastigmine is a cholinesterase inhibitor. It works by increasing the amount of a certain substance (acetylcholine) in the brain, which may help reduce symptoms of dementia in patients with Alzheimer disease. Synonyms: 1-(3-methoxyphenyl)ethanol; 1-(3-methoxyphenyl)ethanol. Grades: 99 %. CAS No. 23308-82-9. Molecular formula: C9H12O2. Mole weight: 152.19. | |
| 13-O-Acetyl Papaveroxine | 13-O-Acetyl Papaveroxine is an impurity of Papaveroxine (P190520), a minor alkaloid that naturally occurs in capsules of P. pseudo-orientale plant and various Papaver plant species. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg. US Biological Life Sciences. | Worldwide |
| 13-O-(Triethylsilyl) Baccatin III | 13-O-(Triethylsilyl) Baccatin III is an impurity of Paclitaxel, which is a chemotherapy medication used to treat a number of types of cancer. Synonyms: (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-6,12b-Bis(acetyloxy)-12-(benzoyloxy)-1,2a,3,4,4a,6,9,10,11,12,12a,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-9-[(triethylsilyl)oxy]-7,11-methano-5H-cyclodeca[3,4]benz[1,2-b]oxet-5-one; Paclitaxel Impurity 16 (13-(Triethylsilyl)baccatin III); (5beta,7beta,10beta,13alpha)-4,10-Bis(acetyloxy)-1,7-dihydroxy-9-oxo-13-[(triethylsilyl)oxy]-5,20-epoxytax-11-en-2-yl benzoate; 13-Tes-baccatin III; 7,11-Methano-5H-cyclodeca[3,4]benz[1,2-b]oxet-5-one, 6,12b-bis(acetyloxy)-12-(benzoyloxy)-1,2a,3,4,4a,6,9,10,11,12,12a,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-9-[(triethylsilyl)oxy]-, (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-. Grades: 98%. CAS No. 208406-86-4. Molecular formula: C37H52O11Si. Mole weight: 700.89. | |
| 13-O-(Triethylsilyl) Baccatin III | 13-O-(Triethylsilyl) Baccatin III. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 13-Tes-baccatin III,7,11-Methano-5H-cyclodeca[3,4]benz[1,2-b]oxet-5-one, 6,12b-bis(acetyloxy)-12-(benzoyloxy)-1,2a,3,4,4a,6,9,10,11,12,12a,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-9-[(triethylsilyl)oxy]-, (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-, 13-O-(Triethylsilyl)baccatin III. CAS No. 208406-86-4. Pack Sizes: 10MG. Molecular formula: C37H52O11Si. Mole weight: 700.89. Catalog: APS208406864. SMILES: CC[Si](CC)(CC)O[C@H]1C[C@@]2(O)[C@@H](OC(=O)c3ccccc3)[C@@H]4[C@@]5(CO[C@@H]5C[C@H](O)[C@@]4(C)C(=O)[C@H](OC(=O)C)C(=C1C)C2(C)C)OC(=O)C. Format: Neat. Shipping: Room Temperature. | |
| (13S)-Ethyl-18,19-dinorpregna-4,14,16-triene-3,20-dione | (13S)-Ethyl-18,19-dinorpregna-4,14,16-triene-3,20-dione is an impurity in the synthesis of Gestodene (G368250), an active gestogen with progesterone-like profile of activity. Group: Biochemicals. Alternative Names: (13S) -17-Acetyl-13-ethyl-6, 7, 8, 9, 10, 11, 12, 13-octahydro-1H-cyclopenta [a]phenanthren-3 (2H) -one. Grades: Highly Purified. CAS No. 932388-88-0. Pack Sizes: 1mg. US Biological Life Sciences. | Worldwide |
| (13S)-Ethyl-18,19-dinorpregna-5,14,16-triene-3,20-dione | (13S)-Ethyl-18,19-dinorpregna-5,14,16-triene-3,20-dione is an impurity in the synthesis of Gestodene (G368250), an active gestogen with progesterone-like profile of activity. Group: Biochemicals. Alternative Names: (13S) -17-Acetyl-13-ethyl-4, 6, 7, 8, 9, 11, 12, 13-octahydro-1H-cyclopenta [a]phenanthren-3 (2H) -one. Grades: Highly Purified. Pack Sizes: 1mg. US Biological Life Sciences. | Worldwide |
| 1,3-Thiazol-5-ylmethyl N-[(1S,2S,4S)-4-(acetylamino)-1-benzyl-2-hydroxy-5-phenylpentyl]carbamate | 1,3-Thiazol-5-ylmethyl N-[(1S,2S,4S)-4-(acetylamino)-1-benzyl-2-hydroxy-5-phenylpentyl]carbamate is an impurity of the selective HIV protease inhibitor Ritonavir. Group: Biochemicals. Alternative Names: Thiazol-5-ylmethyl N-[(2S,3S,5S)-5-Acetamido-3-hydroxy-1,6-diphenylhexan-2-yl Carbamate; Ritonavir USP Impurity A; N-[ (1S, 2S, 4S) -4- (Acetylamino) -2-hydroxy-5-phenyl-1- (phenylmethyl) pentyl]carbamic Acid 5-Thiazolylmethyl Ester. Grades: Highly Purified. CAS No. 1010808-43-1. Pack Sizes: 5mg. US Biological Life Sciences. | Worldwide |
| 14,15-Dehydro-21-acetyl Fluocinolone Acetonide | 14,15-Dehydro-21-acetyl Fluocinolone Acetonide is an intermediate in the synthesis of 14,15-Dehydro Fluocinolone Acetonide (D230135); an impurity of Fluocinolone Acetonide (F455800) which is a glucocorticoid and anti-inflammatory agent. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg, 25mg. Molecular Formula: C26H30F2O7, Molecular Weight: 492.51. US Biological Life Sciences. | Worldwide |
| 1-[4-[3- (4-Acetyl-2-methoxyphenoxy) propoxy]-3-ethoxyphenyl]ethanone | 1-[4-[3- (4-Acetyl-2-methoxyphenoxy) propoxy]-3-ethoxyphenyl]ethanone is an impurity of Iloperidone (I267200); an atypical antipsychotic drug used in the treatment of schizophrenia. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 25mg, 250mg. Molecular Formula: C22H26O6, Molecular Weight: 386.44. US Biological Life Sciences. | Worldwide |
| 1-[4-[3- (4-Acetyl-2-methoxyphenoxy) propoxy]-3-ethoxyphenyl]ethanone-d3 | 1-[4-[3- (4-Acetyl-2-methoxyphenoxy) propoxy]-3-ethoxyphenyl]ethanone-d3 is the isotope labelled analog of 1-[4-[3- (4-Acetyl-2-methoxyphenoxy) propoxy]-3-ethoxyphenyl]ethanone (A186535); an impurity of Iloperidone (I267200) which is an atypical antipsychotic drug used in the treatment of schizophrenia. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg. Molecular Formula: C22H23D3O6, Molecular Weight: 389.46. US Biological Life Sciences. | Worldwide |
| 1-(4-Acetylphenyl)-2-methyl-1-propanone | 1-(4-Acetylphenyl)-2-methyl-1-propanone. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-Isobutyrylacetophenone. CAS No. 103931-20-0. Pack Sizes: 10MG. IUPAC Name: 1-(4-acetylphenyl)-2-methylpropan-1-one. Molecular formula: C12H14O2. Mole weight: 190.24. Catalog: APS103931200. SMILES: CC(C)C(=O)c1ccc(cc1)C(=O)C. Format: Neat. Shipping: Room Temperature. | |
| 1-(5-O-Acetyl- β-D-ribofuranosyl)-4-amino-1,3,5-triazin-2(1H)-one | 1-(5-O-Acetyl- β-D-ribofuranosyl)-4-amino-1,3,5-triazin-2(1H)-one is an impurity of 5-Azacytidine (A796000), a potent growth inhibitor and cytotoxic agent. It acts as a demethylating agent by inhibiting DNA methyltransferase. Group: Biochemicals. Grades: Highly Purified. CAS No. 1174733-90-4. Pack Sizes: 10mg, 100mg. Molecular Formula: C10H14N4O6. US Biological Life Sciences. | Worldwide |
| (16α)-3 β-(Acetyloxy)-16,17-dihydroxy-pregna-5,14-dien-20-one | (16α)-3 β-(Acetyloxy)-16,17-dihydroxy-pregna-5,14-dien-20-one is used in the synthesis of Δ14,15-Algestone Acetophenide which is an impurity of Algestone (A532030). Algestone is a pregnane steroid, its acetonide is used as anti-inflammatory drug (topical) and combination with enanthate as injectable contraceptive. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg, 25mg. Molecular Formula: C23H32O5. US Biological Life Sciences. | Worldwide |
| (16 β)-21-(Acetyloxy)-2'-methyl-5'H-Pregna-1,4-dieno[17,16-d]oxazole-3,11,20-trione | (16 β)-21-(Acetyloxy)-2'-methyl-5'H-Pregna-1,4-dieno[17,16-d]oxazole-3,11,20-trione, is an impurity of Deflazacort (D228975), a systemic corticosteroid, and a derivative of prednisolone. Used for rheumatoid arthritis and lupus. Group: Biochemicals. Grades: Highly Purified. CAS No. 13649-84-8. Pack Sizes: 100mg, 500mg. Molecular Formula: C25H29NO6. US Biological Life Sciences. | Worldwide |
| 16-Dehydroprogesterone | 16-Dehydroprogesterone. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Pregna-4,16-diene-3,20-dione, 16-Dehydroprogesterone, 16,17-Didehydroprogesterone, ?4,16-Pregnadiene-3,20-dione, NSC 11037, 3,20-Dioxopregna-4,16-diene, NSC 9785, ?16-Progesterone. CAS No. 1096-38-4. IUPAC Name: (8R,9S,10R,13S,14S)-17-acetyl-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15-decahydrocyclopenta[a]phenanthren-3-one. Molecular formula: C21H28O2. Mole weight: 312.45. Catalog: APS1096384. SMILES: CC(=O)C1=CC[C@H]2[C@@H]3CCC4=CC(=O)CC[C@]4(C)[C@H]3CC[C@]12C. Format: Neat. Shipping: Room Temperature. | |
| 1-(6-Methylpyridin-3-yl)-2-(4-(methylthio)phenyl)ethan-1-one | An impurity of Etoricoxib. Etoricoxib is a selective COX-2 inhibitor. Synonyms: 3-[2-(4-(methylthio)phenyl)acetyl](6-methyl)pyridine; Ethanone, 1-(6-ethyl-3-yridinyl)-2-4-(methylthio)henyl]-; Etoricoxib Impurity P. Grades: ≥95%. CAS No. 221615-72-1. Molecular formula: C15H15NOS. Mole weight: 257.35. | |
| 17α-Ethoxymethyl 6-Dehydrotestosterone | 17α-Ethoxymethy 6-Dehydrotestosterone is an intermediate in the synthesis of 7 β-Acetylthio-17α-ethoxymethy Testosterone which is an impurity of Spironolactone (S683000), which is a synthetic 17-lactone steroid which is a renal competitive aldosterone antagonist in a class of pharmaceuticals called potassium-sparing diuretics, used primarily to treat ascites in patients with liver disease, low-renin hypertension, hypokalemia, and Conns syndrome. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 5mg, 10mg. Molecular Formula: C22H32O3. US Biological Life Sciences. | Worldwide |
| 17 β-Spiro[5-androsten-17,2'-oxiran]-3 β-ol | 17 β-Spiro[5-androsten-17,2'-oxiran]-3 β-ol is an intermediate in the synthesis of 7 β-Acetylthio-17α-ethoxymethy Testosterone which is an impurity of Spironolactone (S683000), which is a synthetic 17-lactone steroid which is a renal competitive aldosterone antagonist in a class of pharmaceuticals called potassium-sparing diuretics, used primarily to treat ascites in patients with liver disease, low-renin hypertension, hypokalemia, and Conns syndrome. Group: Biochemicals. Grades: Highly Purified. CAS No. 847-75-6. Pack Sizes: 25mg, 50mg. Molecular Formula: C20H30O2. US Biological Life Sciences. | Worldwide |
| 17-Dehydroxy-6α-methyl-11-oxo Prednisolone 21-Acetate | 17-Dehydroxy-6α-methyl-11-oxo Prednisolone 21-Acetate is a metabolite of Prednisolone, which is a glucocorticoid and an anti-inflammatory drug used to treat central nervous system disorders. Synonyms: 2-oxo-2-((6S,8S,9S,10R,13S,14S)-6,10,13-trimethyl-3,11-dioxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)ethyl acetate; Methylprednisolone Acetate EP Impurity F; (6α,17ξ)-6-Methyl-3,11,20-trioxopregna-1,4-dien-21-yl acetate; Pregna-1,4-diene-3,11,20-trione, 21-(acetyloxy)-6-methyl-, (6α,17ξ)-. Molecular formula: C24H30O5. Mole weight: 398.49. | |
| 17-Desethynyl 17-Dibromomethylaceto-norethindrone Acetate | 17-Desethynyl 17-Dibromomethylaceto-norethindrone Acetate is an intermediate of Norethindrone, which is an oral contraceptive involved in the inhibition of cytosolic sulfotransferases. Synonyms: 17-Dibromomethylaceto-19-norpregn-4-ene-3,20-dione; Norethindrone Acetate Impurity 13; (17α)-21,21-Dibromo-3,20-dioxo-19-norpregn-4-en-17-yl acetate; (8R,9S,10R,13S,14S,17S)-17-(2,2-dibromoacetyl)-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl acetate; Estr-4-en-3-one, 17-(acetyloxy)-17-(2,2-dibromoacetyl)-, (17β)-. Grades: ≥95%. CAS No. 40228-41-9. Molecular formula: C22H28Br2O4. Mole weight: 516.26. | |
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