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Canagliflozin Ring Opening Impurity Canagliflozin Ring Opening Impurity is an impurity of Canagliflozin, which is a sodium/glucose cotransporter 2 (SGLT2) inhibitor used in the treatment of type 2 diabetes and obesity. Synonyms: (2S,3R,4R,5R)-1-(3-((5-(4-Fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)hexane-1,2,3,4,5,6-hexaol; D-Glucitol, 1-C-[3-[[5-(4-fluorophenyl)-2-thienyl]methyl]-4-methylphenyl]-; 1-C-[3-[[5-(4-Fluorophenyl)-2-thienyl]methyl]-4-methylphenyl]-D-glucitol. Molecular formula: C24H27FO6S. Mole weight: 462.53. BOC Sciences 6
Canagliflozin Ring Opening Impurity Canagliflozin Ring Opening Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (2S,3R,4R,5R)-1-(3-((5-(4-fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)hexane-1,2,3,4,5,6-hexaol. Molecular Formula: C24H27FO6S. Mole Weight: 462.53. Catalog: APB04263. Alfa Chemistry Analytical Products 3
Cefmetazole Ring Opening Decarboxylation Impurity B Cefmetazole Ring Opening Decarboxylation Impurity B. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C18H16Cl2F3NO2. Mole Weight: 406.23. Catalog: APB07442. Alfa Chemistry Analytical Products 4
Cefoperazone Ring Opening Decarboxylation Impurity Cefoperazone Ring Opening Decarboxylation Impurity. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C24H29N9O7S2. Mole Weight: 619.67. Catalog: APB06977. Alfa Chemistry Analytical Products 4
Cefoperazone ring opening impurity Cefoperazone ring opening impurity. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C25H29N9O9S2. Mole Weight: 663.68. Catalog: APB06981. Alfa Chemistry Analytical Products 4
Cefotaxime ring opening decarboxylation Impurity Cefotaxime ring opening decarboxylation Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (Z)-2-((2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid. Molecular Formula: C12H15N5O4S2. Mole Weight: 357.41. Catalog: APB04452. Alfa Chemistry Analytical Products 4
Cefradine ring opening impurity 6 Cefradine ring opening impurity 6. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C16H21N3O5S. Mole Weight: 367.42. Catalog: APB07048. Alfa Chemistry Analytical Products 4
Ceftazidime Ring Opening Impurity Ceftazidime Ring Opening Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-2- ( (R)- ( (Z)-2- (2-aminothiazol-4-yl)-2- ( ( (2-carboxypropan-2-yl)oxy)imino)acetamido) (carboxy)methyl)-5- (pyridin-1-ium-1-ylmethyl)-3, 6-dihydro-2H-1, 3-thiazine-4-carboxylate. Molecular Formula: C22H24N6O8S2. Mole Weight: 564.59. Catalog: APB04473. Alfa Chemistry Analytical Products 4
Ceftizoxime Ring Opening Impurity Ceftizoxime Ring Opening Impurity. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C13H15N5O6S2. Mole Weight: 401.41. Catalog: APB07254. Alfa Chemistry Analytical Products 4
Cladribine EP Impurity E (Ring Opening) Cladribine EP Impurity E (Ring Opening). Uses: For analytical and research use. Group: Impurity standards. CAS No. 533-67-5. Molecular Formula: C5H10O4. Mole Weight: 134.13. Catalog: APB533675. Alfa Chemistry Analytical Products 3
Decitabine Ring Opening Impurity Decitabine Ring Opening Impurity. Uses: For analytical and research use. Group: Impurity standards. CAS No. 69304-64-9. Molecular Formula: C8H14N4O5. Mole Weight: 246.22. Catalog: APB69304649. Alfa Chemistry Analytical Products 3
Everolimus Ring-Opening Impurity An impurity of Everolimus. Everolimus inhibits cytokine-mediated lymphocyte proliferation. Synonyms: Everolimus Retroaldol Degradation Product. Grades: > 95%. CAS No. 1708118-13-1. Molecular formula: C53H83NO14. Mole weight: 958.25. BOC Sciences 8
Ezetimibe ring-opening dehydrate impurity An impurity of Ezetimibe. Ezetimibe inhibits intestinal cholesterol absorption by preventing cholesterol uptake by the Niemann-Pick C1-like 1 (NPC1L31) protein, a cholesterol transporter located in the apical membrane of enterocytes. Synonyms: (αR,βS)-β-[(4-Fluorophenyl)amino]-α-[3-(4-fluorophenyl)-2-propen-1-yl]-4-hydroxybenzenepropanoic Acid. Grades: > 95%. CAS No. 1292292-63-7. Molecular formula: C24H21F2NO3. Mole weight: 409.44. BOC Sciences 7
Irinotecan ring opening impurity Irinotecan ring opening impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 12-ethyl-8-methyl-9-oxo-7-propionyl-9,11-dihydroindolizino[1,2-b]quinolin-2-yl [1,4'-bipiperidine]-1'-carboxylate. CAS No. 176515-52-9. Molecular Formula: C32H38N4O4. Mole Weight: 542.67. Catalog: APB176515529. Alfa Chemistry Analytical Products
Loxoprofen Ring-opening Impurity Loxoprofen Ring-opening Impurity is a degradation product of Loxoprofen, a non-selective nonsteroidal anti-inflammatory drug (NSAID) that has been effective in reducing atherosclerosis in mice by reducing inflammation. Synonyms: 4-(1-Carboxyethyl)-δ-oxo-benzenehexanoic Acid; 2-[4-(2-Oxo-6-carboxy-pentyl)phenyl-propanoic Acid. Grades: > 95%. CAS No. 1091621-61-2. Molecular formula: C15H18O5. Mole weight: 278.3. BOC Sciences 8
Lurasidone ring opening impurity 47 Lurasidone ring opening impurity 47. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (1R, 2S, 3R, 4S) -3- ( ( ( (1R, 2R) -2- ( (4- (benzo[d]isothiazol-3-yl) piperazin-1-yl) methyl) cyclohexyl) methyl) carbamoyl) bicyclo[2. 2. 1]heptane-2-carboxylic acid. Molecular Formula: C28H38N4O3S. Mole Weight: 510.69. Catalog: APB02152. Alfa Chemistry Analytical Products 4
Lurasidone ring opening impurity 48 Lurasidone ring opening impurity 48. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (1S, 2R, 3S, 4R) -3- ( ( ( (1R, 2R) -2- ( (4- (benzo[d]isothiazol-3-yl) piperazin-1-yl) methyl) cyclohexyl) methyl) carbamoyl) bicyclo[2. 2. 1]heptane-2-carboxylic acid. Molecular Formula: C28H38N4O3S. Mole Weight: 510.69. Catalog: APB02153. Alfa Chemistry Analytical Products 4
Mycophenolic acid ring opening impurity Mycophenolic acid ring opening impurity. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C17H22O7. Mole Weight: 338.36. Catalog: APB08686. Alfa Chemistry Analytical Products 4
Tacrolimus Ring-opening Impurity One of the impurities of Tacrolimus, which is a kind of immunosuppressant and could restrain the activity of FK-506 binding protein. Synonyms: Tacrolimus Ring-opening Impurity. Grades: > 95%. Molecular formula: C44H69NO12. Mole weight: 804.04. BOC Sciences 7
Benzyl Penicilloic Acid HCl (Mixture of Diastereomers) An impurity of Penicilloic Acid which is a thiazolidinedicarboxylic acid obtained from the penicillins by the hydrolytic opening of the lactam ring. Grades: > 95%. Molecular formula: C16H20N2O5S.HCl. Mole weight: 388.87. BOC Sciences 7
Benzyl Penicilloic Acid Mono-Sodium Salt (Mixture of Diastereomers) An impurity of Penicilloic Acid which is a thiazolidinedicarboxylic acid obtained from the penicillins by the hydrolytic opening of the lactam ring. Grades: > 95%. Molecular formula: C16H19N2O5S.Na. Mole weight: 374.39. BOC Sciences 7
Cefditoren ring opening Dimer Cefditoren ring opening Dimer. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (pivaloyloxy)methyl 7-((E)-2-(2-(2-((E)-2-(2-aminothiazol-5-yl)-2-(methoxyimino)acetamido)-2-(5-((Z)-2-(4-methylthiazol-5-yl)vinyl)-4-(((pivaloyloxy)methoxy)carbonyl)-3,6-dihydro-2H-1,3-thiazin-2-yl)acetamido)thiazol-5-yl)-2-(methoxyimino)acetamido)-3-((Z)-2-(4-methylthiazol-5-yl)vinyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate. Molecular Formula: C50H56N12O14S6. Mole Weight: 1241.44. Catalog: APB04669. Alfa Chemistry Analytical Products 4
Cefoperazone ring opening decarboxylactone Cefoperazone ring opening decarboxylactone. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C22H25N5O7S. Mole Weight: 503.53. Catalog: APB06980. Alfa Chemistry Analytical Products 4
Cefotaxime Ring-Opening Lactone Cefotaxime Ring-Opening Lactone. Uses: For analytical and research use. Group: Impurity standards. CAS No. 75679-12-8. Molecular Formula: C14H15N5O6S2. Mole Weight: 413.42. Catalog: APB75679128. Alfa Chemistry Analytical Products 3
Dapagliflozin Open Sugar Impurity Dapagliflozin Open Sugar Impurity is an impurity of Dapagliflozin. Dapagliflozin is a selective, orally active inhibitor of the renal sodium-glucose co-transporter type 2 (SGLT2) in development for the treatment of type 2 diabetes mellitus (T2DM). Synonyms: Dapagliflozin open sugar impurity; 1-C-[4-Chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-D-glucitol; (2S,3R,4R,5R)-1-(4-Chloro-3-(4-ethoxybenzyl)phenyl)hexane-1,2,3,4,5,6-hexaol; Dapagliflozin ring opening impurity; (1R,2S,3R,4R)-1-(4-Chloro-3-(4-ethoxybenzyl)phenyl)hexane-1,2,3,4,5,6-hexaol. Molecular formula: C21H27ClO7. Mole weight: 426.89. BOC Sciences 8
Everolimus Related Compound 3 Everolimus Ring-Opening Impurity. Everolimus inhibits cytokine-mediated lymphocyte proliferation. Synonyms: (2S)-1-[[(2R,3R,6S)-6-[(2S,3E,5E,7E,9S,11R)-2,13-Dimethoxy-3,9,11-trimethyl-12-oxo-3,5,7-tridecatrienyl]tetrahydro-2-hydroxy-3-methyl-2H-pyran-2-yl]oxoacetyl]-2-piperidinecarboxylic Acid. Grades: 65%. CAS No. 147438-30-0. Molecular formula: C32H49NO9. Mole weight: 591.75. BOC Sciences 8
Piperacillin Ring Opening Dimer Piperacillin Ring Opening Dimer. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2170771-53-4. Molecular Formula: C46H54N10O14S2. Mole Weight: 1035.11. Catalog: APB2170771534. Alfa Chemistry Analytical Products 2
Piperacillin Ring Opening Ethyl Ester Piperacillin Ring Opening Ethyl Ester. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C25H33N5O8S. Mole Weight: 563.63. Catalog: APB09073. Alfa Chemistry Analytical Products 4
Piperacillin Ring Opening Methyl Ester Piperacillin Ring Opening Methyl Ester. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C24H31N5O8S. Mole Weight: 549.6. Catalog: APB09072. Alfa Chemistry Analytical Products 4
2-? [ [ (1R, ?2R) ?-?2-? [ [4-? (1, ?2-?Benzisothiazol-?3-?yl) ?-?1-?piperazinyl] ?methyl] ?cyclohexyl] ?methyl] ?-1H-?isoindole-?1, ?3 (2H) ?-?dione 2-? [ [ (1R, ?2R) ?-?2-? [ [4-? (1, ?2-?Benzisothiazol-?3-?yl) ?-?1-?piperazinyl] ?methyl] ?cyclohexyl] ?methyl] ?-1H-?isoindole-?1, ?3 (2H) ?-?dione is an intermediate in synthesizing Lurasidone Opened Imide (L474935), an impurity in the synthesis of Lurasidone (L474920) which is antipsychotic used for treatment of schizophrenia. Group: Biochemicals. Grades: Highly Purified. CAS No. 1260025-92-0. Pack Sizes: 10mg, 25mg. Molecular Formula: C27H30N4O2S. US Biological Life Sciences. USBiological 9
Worldwide
2-(3-methoxypropyl)-2H-thieno[3,2-e][1,2]thiazine-6-sulfonamide 1,1-dioxide An impurity of Brinzolamide, a potent carbonic anhydrase inhibitor used to lower intraocular pressure in patients with open-angle glaucoma or ocular hypertension. Synonyms: 2-(3-METHOXYPROPYL)-2H-THIENO[3,2-E][1,2]THIAZINE-6-SULFONAMIDE 1,1-DIOXIDE; 2-(3-methoxypropyl)-1,1-dioxothieno[3,2-e]thiazine-6-sulfonamide; B0464-284943; 2-(3-METHOXYPROPYL)-2H-THIENO[3,2-E][1,2]THIAZINE-6-SULFONAMIDE1,1-DIOXIDE. CAS No. 171273-35-1. Molecular formula: C10H14N2O5S3. Mole weight: 338.42. BOC Sciences 9
(2R,4S)-2-[(2S,5S)-5-(4-Hydroxyphenyl)-3,6-dioxo-2-piperazinyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid (2R,4S)-2-[(2S,5S)-5-(4-Hydroxyphenyl)-3,6-dioxo-2-piperazinyl]-5,5-dimethyl-4-thiazolidinecarboxylic Acid is an impurity in the synthesis of N-(Penicillan-6-yl) Open Ring Amoxicillinamide Disodium Salt , whch is an impurity of Amoxicillin (A634235); a semi-synthetic antibiotic related to Penicillin (P233500). Antibacterial. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C16H19N3O5S. US Biological Life Sciences. USBiological 10
Worldwide
[2S-[2α,5α,6 β (S*) ] ] -6- [ [ (4-Hydroxyphenyl) [ [ [ (4-nitrophenyl) methoxy] carbonyl] amino] acetyl] amino] -3, 3-dimethyl-7-oxo-4-thia-1-azabicyclo [3. 2. 0] heptane-2-carboxylic Acid [2S-[2α,5α,6 β (S*) ] ] -6- [ [ (4-Hydroxyphenyl) [ [ [ (4-nitrophenyl) methoxy] carbonyl] amino] acetyl] amino] -3, 3-dimethyl-7-oxo-4-thia-1-azabicyclo [3. 2. 0] heptane-2-carboxylic Acid is an impurity in the synthesis of N-(Penicillan-6-yl) Open Ring Amoxicillinamide Disodium Salt, which is an impurity of Amoxicillin (A634235); a semi-synthetic antibiotic related to Penicillin (P233500). Antibacterial. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C24H23N4NaO9S. US Biological Life Sciences. USBiological 10
Worldwide
3 β,5 β-Dihydroxy Drospirenone-d4 Ring-opened (Alcohol Impurity) Intermediate in the preparation of labeled Drospirenone. Group: Biochemicals. Alternative Names: (3S, 5R, 6R, 7R, 8R, 9S, 10R, 13S, 14S, 15S, 16S, 17S) -Octadecahydro-17- (3-hydroxypropyl) -10, 13-dimethyl-5H-dicyclopropa [6, 7: 15, 16]cyclopenta [a]phenanthrene-3, 5, 17-triol-d4; [3S-(3α,5α,6 β,7 β,8α,9 β, 10α, 13α, 14 β,15 β,16 β , 17α ) ]-Octadecahydro-17- (3-hydroxypropyl) -10, 13-dimethyl-5H-dicyclopropa [6, 7: 15, 16]cyclopenta [a]phenanthrene-3, 5, 17-triol-d4; 17-(3-Hydroxypropyl)-6 β,7 β:15 β,16 β-dimethyleneandrostane-3 β,5 β,17 β-triol-d4. Grades: Highly Purified. Pack Sizes: 5mg. US Biological Life Sciences. USBiological 2
Worldwide
3 β,5 β-Dihydroxy Drospirenone Ring-opened (Alcohol Impurity) Intermediate in the preparation of Drospirenone. Group: Biochemicals. Alternative Names: (3S, 5R, 6R, 7R, 8R, 9S, 10R, 13S, 14S, 15S, 16S, 17S) -Octadecahydro-17- (3-hydroxypropyl) -10, 13-dimethyl-5H-dicyclopropa [6, 7: 15, 16]cyclopenta [a]phenanthrene-3, 5, 17-triol; [3S-(3α,5α,6 β,7 β,8α,9 β, 10α, 13α, 14 β,15 β,16 β , 17α ) ]-Octadecahydro-17- (3-hydroxypropyl) -10, 13-dimethyl-5H-dicyclopropa [6, 7: 15, 16]cyclopenta [a]phenanthrene-3, 5, 17-triol; 17-(3-Hydroxypropyl)-6 β,7 β:15 β,16 β-dimethyleneandrostane-3 β,5 β,17 β-triol. Grades: Highly Purified. CAS No. 82543-18-8. Pack Sizes: 10mg. US Biological Life Sciences. USBiological 2
Worldwide
4-Oxo Diazepam Open Ring Impurity 4-Oxo Diazepam Open Ring Impurity is one of Diazepam impurities. Diazepam is a benzodiazepine used as an anti-anxiety and muscle relaxant, as well as to treat epilepsy. Synonyms: Diazepam Impurity 5; 2-(N-acethyl-N-methylamino)-5-chlorobenzophenone. CAS No. 36271-03-1. Molecular formula: C16H14ClNO2. Mole weight: 287.74. BOC Sciences 8
5-Beta-Hydroxy-Drospirenone-17-Propanol 5-Hydroxy Drospirenone Ring-opened Alcohol Impurity is an impurity of Drospirenone. Synonyms: (5R, 6R, 7R, 8R, 9S, 10R, 13S, 14S, 15S, 16S, 17S)-Octadecahydro-5, 17-dihydroxy-17-(3-hydroxypropyl)-10, 13-dimethyl-3H-dicyclopropa[6, 7:15, 16]cyclopenta[a]phenanthren-3-one; 17α-[3-Hydroxypropyl]-6β,7β:15β,16β-dimethylen-5β-androstan-5,17β-ol-3-one. Grades: > 95%. CAS No. 1357252-81-3. Molecular formula: C24H36O4. Mole weight: 388.54. BOC Sciences 8
Acarbose Impurity A Acarbose Impurity A. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 1013621-79-8 (open form); 4-(((2R,3R,4R,5S,6R)-5-(((2R,3R,4S,5S,6R)-3,4-dihydroxy-6-methyl-5-(((1S,4R,5S,6S)-4,5,6-trihydroxy-3-(hydroxymethyl)cyclohex-2-en-1-yl)amino)tetrahydro-2H-pyran-2-yl)oxy)-3,4-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-2-(hydroxymethyl)tetrahydro-2H-pyran-2,3,5-triol. Molecular Formula: C25H43NO18. Mole Weight: 645.60. Catalog: APB02902. Alfa Chemistry Analytical Products 3
Ampicillin open ring dimer An impurity of Ampicillin, an antibiotic used for the treatment of various bacterial infections. Synonyms: (4S)-2-{1-[(R)-2-amino-2-phenylacetamido]-2-[(1R)-2-{[(4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl]methylamino}-2-oxo-1-phenylethylamino]-2-oxoethyl}-5,5-dimethylthiazolidine-4-carboxylic acid. Molecular formula: C31H40N6O7S2. Mole weight: 672.82. BOC Sciences 2
Anidulafungin Impurity A Anidulafungin Impurity A is a degradation impurity of Anidulafungin, a semisynthetic echinocandin used as an antifungal drug. Anidulafungin has been used in the treatment of invasive fungal infections including candidiasis, candidemia and esophageal candidiasis. Synonyms: Anidulafungin Open-chain Degradant. Molecular formula: C58H73N7O17. Mole weight: 1140.25. BOC Sciences
Arginine Ring-opened Aztreonam Arginine Ring-opened Aztreonam is an Aztreonam (A965200) Impurity I. Aztreonam is the first totally synthetic monocyclic β-lactam antibiotic. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 2.5mg, 5mg. Molecular Formula: C19H31N9O10S2, Molecular Weight: 609.63. US Biological Life Sciences. USBiological 3
Worldwide
Aztreonam Impurity A Aztreonam Impurity A is an metabolite of Aztreonam, a synthetic monocyclic β-lactam antibiotic. Synonyms: SQ 26992; Open Ring Aztreonam; [S-[R*,R*-(Z)]]-2-[[(2-Amino-4-thiazolyl)[(1-carboxy-1-methylethoxy)imino]acetyl]amino]-3-(sulfoamino)-butanoic acid. Grades: > 95%. CAS No. 87500-74-1. Molecular formula: C13H19N5O9S2. Mole weight: 453.45. BOC Sciences
Cefdinir Impurity 4 Cefdinir impurity formed by hydrolytic degradation pathway β-lactam ring opened lactones. Synonyms: [2RS-[2α [RS* (Z)], 5β ]]-α -[[ (2-Amino-4-thiazolyl) (hydroxyimino)acetyl]amino]-1, 2, 5, 7-tetrahydro-5-methyl-7-oxo-4H-furo[3, 4-d][1, 3]thiazine-2-acetic Acid. Grades: > 95%. CAS No. 178422-45-2. Molecular formula: C14H15N5O6S2. Mole weight: 413.43. BOC Sciences 7
Cefdinir Impurity H Cefdinir Impurity H is one of Cefdinir impurities. Cefdinir is a semi-synthetic, broad-spectrum antibiotic, used for soft tissue infections and respiratory tract infections. Synonyms: Cefdinir impurity H; 178949-04-7; Cefdinir decarboxy open ring lactone; 2O1193FN39; (2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-hydroxyimino-N-[(5-methyl-7-oxo-1,2,4,5-tetrahydrofuro[3,4-d][1,3]thiazin-2-yl)methyl]acetamide; (Z)-2-(2-Aminothiazol-4-yl)-2-(hydroxyimino)-N -(((2RS,5RS)-5-methyl-7-oxo-2,4,5,7-tetrahydro-1H -furo(3,4-d)(1,3)thiazin-2-yl)methyl(acetamide; 2-(2-Aminothiazol-4-yl)-2-(hydroxyimino)-N -(((2RS,5RS)-5-methyl-7-oxo-2,4,5,7-tetrahydro-1H -furo(3,4-d)(1,3)thiazin-2-yl)methyl(acetamide, (Z)-; UNII-2O1193FN39; SCHEMBL23871786; (Z)-2-(2-Aminothiazol-4-yl)-2-(hydroxyimino)-N-{[(2RS,5RS)-5-methyl-7-oxo-2,4,5,7-tetrahydro-1H-furo[3,4-d][1,3]thiazin-2-yl]methyl}acetamide; 4-Thiazoleacetamide, 2-amino-alpha-(hydroxyimino)-N-((1,2,5,7-tetrahydro-5-methyl-7-oxo-4H-furo(3,4-d)(1,3)thiazin-2-yl)methyl)-; 4-THIAZOLEACETAMIDE, 2-AMINO-.ALPHA.-(HYDROXYIMINO)-N-((1,2,5,7-TETRAHYDRO-5-METHYL-7-OXO-4H-FURO(3,4-D)(1,3)THIAZIN-2-YL)METHYL)-. Molecular formula: C14H15N5O6S2. Mole weight: 413.43. BOC Sciences 7
Cefotaxime Open-Ring Decarboxy Lactone Cefotaxime Open-Ring Decarboxy Lactone. Uses: For analytical and research use. Group: Impurity standards. CAS No. 130468-09-6. Molecular Formula: C13H15N5O4S2. Mole Weight: 369.41. Catalog: APB130468096. Alfa Chemistry Analytical Products
Cefotiam open-ring Impurity Cefotiam open-ring Impurity. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C18H25N9O5S3. Mole Weight: 543.64. Catalog: APB07314. Alfa Chemistry Analytical Products 4
Cefotiam open-ring reference substance Cefotiam open-ring reference substance. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-2-((R)-(2-(2-aminothiazol-4-yl)acetamido)(carboxy)methyl)-5-(((1-(2-(dimethylamino)ethyl)-1H-tetrazol-5-yl)thio)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid. Molecular Formula: C18H25N9O5S3. Mole Weight: 543.64. Catalog: APB04042. Alfa Chemistry Analytical Products 4
Cefoxitin Open Ring Impurity Cefoxitin Open Ring Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-5-((carbamoyloxy)methyl)-2-((S)-carboxy(methoxy)(2-(thiophen-2-yl)acetamido)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid. Molecular Formula: C16H19N3O8S2. Mole Weight: 445.47. Catalog: APB04002. Alfa Chemistry Analytical Products 4
Ceftizoxime open-ring Decarboxylation Impurity Ceftizoxime open-ring Decarboxylation Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (Z)-2-((2-(2-aminothiazol-4-yl)-3-methoxyacrylamido)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid. Molecular Formula: C13H16N4O4S2. Mole Weight: 356.42. Catalog: APB04421. Alfa Chemistry Analytical Products 4
Ceftizoxime open-ring Impurity Ceftizoxime open-ring Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-2-((R)-((Z)-2-(2-aminothiazol-4-yl)-3-methoxyacrylamido)(carboxy)methyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid. Molecular Formula: C14H16N4O6S2. Mole Weight: 400.43. Catalog: APB04424. Alfa Chemistry Analytical Products 4
Cyclosporin A-Derivative 1 Free base Cyclosporin A-Derivative 1 Free base is an impurity of cyclosporin, which is a calcineurin phosphatase pathway inhibitor, used as an immunosuppressant drug to prevent rejection in organ transplantation. Synonyms: Cyclosporin A open ring; N-Methyl-L-leucyl-L-valyl-N-methyl-L-leucyl-L-alanyl-D-alanyl-N-methyl-L-leucyl-N-methyl-L-leucyl-N-methyl-L-valyl-(2S,3R,4R,6E)-3-(acetyloxy)-4-methyl-2-(methylamino)-6-octenoyl-(2S)-2-aminobutanoyl-N-methyl-glycine Methyl Ester; Cyclosporin A-Derivative 1 (Free base); Cyclosporin A seco(MeGly-MeLeu) Methyl Ester; Leu-Val-Leu-Ala-{d-Ala}-Leu-Leu-Val-{Aaa}-{Abu}-{Sar}; LVLA-{d-Ala}-LLV-{Aaa}-{Abu}-{Sar}. Grades: ≥95%. CAS No. 286852-20-8. Molecular formula: C65H117N11O14. Mole weight: 1276.69. BOC Sciences 3
Dapagliflozin Impurity 5 Dapagliflozin Impurity 5 is an impurity of Dapagliflozin. Dapagliflozin is a selective, orally active inhibitor of the renal sodium-glucose co-transporter type 2 (SGLT2) in development for the treatment of type 2 diabetes mellitus (T2DM). Synonyms: 1-C-[4-Chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-D-glucitol; Dapagliflozin Open Ring Impurity. Grades: >90%. CAS No. 2100872-88-4. Molecular formula: C21H27ClO7. Mole weight: 426.89. BOC Sciences 8
Donepezil Open-Ring Keto Acid Donepezil Open-Ring Keto Acid is an impurity of Donepezil, a medication for the treatment of Alzheimer's disease. Synonyms: 2-[3-(1-Benzylpiperidin-4-yl)-2-oxopropyl]-4,5-dimethoxybenzoic acid. CAS No. 197010-25-6. Molecular formula: C24H29NO5. Mole weight: 411.498. BOC Sciences 9
Dorzolamide Impurity A Dorzolamide is a potent carbonic anhydrase II inhibitor with an IC50 value of 0.16 nM on human erythrocyte carbonic anhydrase II in vitro. It has been found to lower increased intraocular pressure in open-angle glaucoma and ocular hypertension. Uses: Carbonic anhydrase inhibitors. Synonyms: L671152; MK507; L 671152; MK 507; L-671152; MK-507; Trusopt. Grades: >98%. CAS No. 120279-96-1. Molecular formula: C10H16N2O4S3. Mole weight: 324.44. BOC Sciences 8
Enzalutamide Open-loop impurity Enzalutamide Open-loop impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-(3-(1-(4-cyano-3-(trifluoromethyl)phenyl)-3-methyl-4-oxo-2-thioxo-1,2,3,4-tetrahydroquinazolin-7-yl)-4,4-dimethyl-5-oxo-2-thioxoimidazolidin-1-yl)-2-(trifluoromethyl)benzonitrile. Molecular Formula: C30H18F6N6O2S2. Mole Weight: 672.62. Catalog: APB05314. Alfa Chemistry Analytical Products 4
Ertapenem Ring Open Impurity An impurity of Ertapenem. Ertapenem is a carbapenem antibiotic. Synonyms: 1H-Pyrrole-2-acetic acid, 5-carboxy-4-[[(3S,?5S)?-5-[[(3-carboxyphenyl)?amino]?carbonyl]?-3-pyrrolidinyl]?thio]?-2,?3-dihydro-α-[(1R)?-1-hydroxyethyl]?-3-methyl-, (αS,?2S,?3R)?-. Grades: > 95%. CAS No. 357154-27-9. Molecular formula: C22H27N3O8S. Mole weight: 493.54. BOC Sciences 8
Everolimus Impurity Everolimus-19-ene open ring (804-95) Everolimus Impurity Everolimus-19-ene open ring (804-95). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-1-(2-((2R, 3R, 6S)-2-hydroxy-6-((2S, 3E, 5E, 7E, 9S, 11R, 13R, 14R, 15E, 17R, 19E, 21R)-14-hydroxy-22-((1S, 3R, 4R)-4-(2-hydroxyethoxy)-3-methoxycyclohexyl)-2, 13-dimethoxy-3, 9, 11, 15, 17, 21-hexamethyl-12, 18-dioxodocosa-3, 5, 7, 15, 19-pentaen-1-yl)-3-methyltetrahydro-2H-pyran-2-yl)-2-oxoacetyl)piperidine-2-carboxylic acid. Molecular Formula: C53H83NO14. Mole Weight: 958.22. Catalog: APB05423. Alfa Chemistry Analytical Products 4
Everolimus Open-Ring Acid Impurity Everolimus Open-Ring Acid Impurity. Uses: For analytical and research use. Group: Impurity standards. CAS No. 769905-89-7. Molecular Formula: C53H85NO15. Mole Weight: 976.25. Catalog: APB769905897. Alfa Chemistry Analytical Products 3
Ezetimibe Azetidinone (Ring-opened Impurity) A degradation product of the antihyperlipoproteinem ic Ezetimibe. Group: Biochemicals. Grades: Highly Purified. Pack Sizes: 10mg. US Biological Life Sciences. USBiological 2
Worldwide
Ezetimibe Azetidinone Ring-opened Impurity An impurity of Ezetimibe. Ezetimibe inhibits intestinal cholesterol absorption by preventing cholesterol uptake by the Niemann-Pick C1-like 1 (NPC1L8) protein, a cholesterol transporter located in the apical membrane of enterocytes. Synonyms: Ezetimibe Azetidinone Ring-opened Sodium Salt Impurity (Technical Grade, >75%). Grades: > 95%. CAS No. 1391053-63-6. Molecular formula: C24H23F2NO4. Mole weight: 427.45. BOC Sciences 7
Ezetimibe (Diacid Impurity) An open-ringed diacid impurity of Ezetimibe. Group: Biochemicals. Alternative Names: (2R) -2- [ (S) - [ (4-Fluorophenyl) amino] [4- (phenylmethoxy) phenyl] methyl] pentanedioic Acid. Grades: Highly Purified. CAS No. 1013025-04-1. Pack Sizes: 5mg. US Biological Life Sciences. USBiological 2
Worldwide
Ezetimibe Ring-Open Impurity An impurity of Ezetimibe. Ezetimibe inhibits intestinal cholesterol absorption by preventing cholesterol uptake by the Niemann-Pick C1-like 1 (NPC1L15) protein, a cholesterol transporter located in the apical membrane of enterocytes. Synonyms: 2-(4-Hydroxybenzyl)-N,5-bis-(4-fluorophenyl)-5-hydroxypentanamide. Grades: > 95%. CAS No. 1197811-72-5. Molecular formula: C24H23FNO3. Mole weight: 411.45. BOC Sciences 7
Fenoterol Degradation Impurity A An impurity of Fenoterol. Fenoterol is a β2 adrenoreceptor agonist designed to open up the airways to the lungs. It is classed as sympathomimetic β2 agonist and asthma medication. Synonyms: ,?2,?3,?4-tetrahydro-2-[2-(4-hydroxyphenyl)?-1-methylethyl]?-4,?6,?8-Isoquinolinetriol. Grades: > 95%. CAS No. 161040-25-1. Molecular formula: C18H21NO4. Mole weight: 315.37 80.91. BOC Sciences 8
Flupirtine Dimer Flupirtine Dimer is an impurity of Flupirtine. Flupirtine is a selective neuronal potassium channel opener that acts as an Analgesic, having substituted pyridine with central analgesic properties. Synonyms: diethyl (6,6'-diamino-2,2'-bis((4-fluorobenzyl)amino)-[3,3'-bipyridine]-5,5'-diyl)dicarbamate. Grades: 98%. CAS No. 1417916-52-9. Molecular formula: C30H32F2N8O4. Mole weight: 606.62. BOC Sciences 8
Gabapentin Related Compound A Gabapentin Lactam (Gabapentin EP Impurity A; Gabapentin USP Related Compound A) reduces protein aggregates and improves motor performance in a transgenic mouse model of Huntington’s disease. It opens mitochondrial ATP-dependent potassium channels. Group: Biochemicals. Alternative Names: 3-Azaspiro-[4,5]decan-3-one; Gabapentin lactam; USP Gabapentin Related Compound A; Gabapentin EP Impurity A; Gabapentin USP Related Compound A. Grades: Highly Purified. CAS No. 64744-50-9. Pack Sizes: 5g, 10g, 25g, 50g, 100g. Molecular Formula: C?H??NO, Molecular Weight: 153.22. US Biological Life Sciences. USBiological 7
Worldwide
N-(2-amino-6-((4-fluorobenzyl)amino)pyridin-3-yl)acetamide It is an impurity of Flupirtine. Flupirtine is a selective neuronal potassium channel opener that acts as an Analgesic, having substituted pyridine with central analgesic properties. Synonyms: Acetamide, N-[2-amino-6-[[(4-fluorophenyl)methyl]amino]-3-pyridinyl]-; Flupirtine Impurity 04. Grades: 99% by HPLC. CAS No. 91941-04-7. Molecular formula: C14H15FN4O. Mole weight: 274.29. BOC Sciences 8
N-(Penicillan-6-yl) Open Ring Amoxicillinamide Disodium Salt N-(Penicillan-6-yl) Open Ring Amoxicillinamide Disodium Salt is an impurity of Amoxicillin, which is an antibiotic used to treat a number of bacterial infections including middle ear infections, strep throat, pneumonia, skin infections, and urinary tract infections. Synonyms: 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2R)-2-[[2-amino-2-(4-hydroxyphenyl)acetyl]amino]-2-[(2R,4S)-4-carboxy-5,5-dimethyl-2-thiazolidinyl]acetyl]amino]-3,3-dimethyl-7-oxo-, sodium salt, (2S,5R,6R)- (1:2); (2S,5R,6R)-6-((2R)-2-(2-Amino-2-(4-hydroxyphenyl)acetamido)-2-((2R,4S)-4-carboxy-5,5-dimethylthiazolidin-2-yl)acetamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid Disodium Salt; Disodium (2S,5R,6R)-6-({(2R)-2-{[amino(4-hydroxyphenyl)acetyl]amino}-2-[(2R,4S)-4-carboxylato-5,5-dimethyl-1,3-thiazolidin-2-yl]acetyl}amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate. Grades: 90%. Molecular formula: C24H29N5Na2O8S2. Mole weight: 625.62. BOC Sciences 8
Open Ring Aztreonam Impurity Open Ring Aztreonam Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (Z)-2-(2-(2-aminothiazol-4-yl)-2-(((2-carboxypropan-2-yl)oxy)imino)acetamido)-3-(sulfoamino)butanoic acid. Molecular Formula: C13H19N5O9S2. Mole Weight: 453.45. Catalog: APB02889. Alfa Chemistry Analytical Products 4
Open Ring Desulfonation Aztreonam Ethyl Ester Open Ring Desulfonation Aztreonam Ethyl Ester. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (Z)-8-(1-aminoethyl)-5-(2-aminothiazol-4-yl)-2,2-dimethyl-6,9-dioxo-3,10-dioxa-4,7-diazadodec-4-en-1-oic acid. Molecular Formula: C15H23N5O6S. Mole Weight: 401.44. Catalog: APB02887. Alfa Chemistry Analytical Products 4
Paclitaxel EP Impurity M Paclitaxel EP Impurity M. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Paclitaxel Oxetane Ring-Opened 3-Acetyl 4-Benzoyl Impurity; (1S,3S,4S,4aR,5S,6S,8S,11R,12aS)-8-(((2R,3S)-3-benzamido-2-hydroxy-3-phenylpropanoyl)oxy)-4-((benzoyloxy)methyl)-1,4,5,6-tetrahydroxy-9,12a,13,13-tetramethyl-12-oxo-1,2,3,4,4a,5,6,7,8,11,12,12a-d. CAS No. 932042-85-8. Molecular Formula: C47H53NO15. Mole Weight: 871.92. Catalog: APB932042858. Alfa Chemistry Analytical Products 3

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