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Acyclovir EP Impurity Q (Mixture of Isomers) Acyclovir EP Impurity Q (Mixture of Isomers). Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C9H13N5O4. Mole Weight: 255.23. Catalog: APB06501. Alfa Chemistry Analytical Products 3
Allopurinol Impurity F (Mixture of Z and E Isomers) Allopurinol Impurity F (Mixture of Z and E Isomers). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: ethyl 3-((2-cyano-3-ethoxy-3-oxoprop-1-en-1-yl)amino)-1H-pyrazole-4-carboxylate. CAS No. 321571-07-7. Molecular Formula: C12H14N4O4. Mole Weight: 278.26. Catalog: APB321571077. Alfa Chemistry Analytical Products 3
Amlodipine Impurity 22 (Z-Isomer) Amlodipine Impurity 22 (Z-Isomer) is an impurity of Amlodipine. Amlodipine is a long-acting dihydropyridine L-type calcium channel blocker. Amlodipine is used to lower blood pressure and prevent chest pain. Synonyms: (Z)-2-[(2-Chlorophenyl)methylene]-4-[2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)ethoxy]-3-oxobutanoic Acid Ethyl Ester. Molecular formula: C23H20ClNO6. Mole weight: 441.86. BOC Sciences
Ampicillin EP Impurity F (2S-Isomer) An impurity of Ampicillin, an antibiotic used for the treatment of various bacterial infections. Synonyms: 4-Thiazolidinecarboxylic acid, 2-[[(aminophenylacetyl)amino]methyl]-5,5-dimethyl-, [2S-[2α(S*),4α]]-. CAS No. 124774-49-8. Molecular formula: C15H21N3O3S. Mole weight: 323.41. BOC Sciences 2
Atomoxetine EP impurity C (isomer) Atomoxetine EP impurity C (isomer). Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C17H23NO. Mole Weight: 257.38. Catalog: APB06666. Alfa Chemistry Analytical Products 3
Atomoxetine EP impurity D (isomer) Atomoxetine EP impurity D (isomer). Uses: For analytical and research use. Group: Impurity standards. CAS No. 1643684-02-9. Molecular Formula: C17H21NO. Mole Weight: 255.36. Catalog: APB1643684029. Alfa Chemistry Analytical Products 2
Atomoxetine EP impurity G (isomer) Atomoxetine EP impurity G (isomer). Uses: For analytical and research use. Group: Impurity standards. CAS No. 2706536-33-4. Molecular Formula: C27H34N2O2. Mole Weight: 418.58. Catalog: APB2706536334. Alfa Chemistry Analytical Products 2
Azacitidine Isomer Impurity 13 Azacitidine Isomer Impurity 13. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03060. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 14 Azacitidine Isomer Impurity 14. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. CAS No. 65886-71-7. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB65886717. Alfa Chemistry Analytical Products 3
Azacitidine Isomer Impurity 15 Azacitidine Isomer Impurity 15. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2S,3S,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03058. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 16 Azacitidine Isomer Impurity 16. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2R,3S,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03059. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 17 Azacitidine Isomer Impurity 17. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2S,3S,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. CAS No. 206269-46-7. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB206269467. Alfa Chemistry Analytical Products 2
Azacitidine Isomer Impurity 18 Azacitidine Isomer Impurity 18. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2R,3R,4S,5S)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03057. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 19 Azacitidine Isomer Impurity 19. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2S,3R,4S,5S)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03056. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 20 Azacitidine Isomer Impurity 20. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2S,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03054. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 21 Azacitidine Isomer Impurity 21. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2R,3R,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03055. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 22 Azacitidine Isomer Impurity 22. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2S,3R,4R,5S)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03052. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 23 Azacitidine Isomer Impurity 23. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2S,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03053. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 24 Azacitidine Isomer Impurity 24. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2R,3S,4S,5S)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03051. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 25 Azacitidine Isomer Impurity 25. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2S,3S,4S,5S)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03048. Alfa Chemistry Analytical Products 4
Azacitidine Isomer Impurity 26 Azacitidine Isomer Impurity 26. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-amino-1-((2R,3S,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one. Molecular Formula: C8H12N4O5. Mole Weight: 244.20. Catalog: APB03050. Alfa Chemistry Analytical Products 4
Azacitidine Related Compound -C Isomer -4 (Azacitidine Impurity 33) Azacitidine Related Compound -C Isomer -4 (Azacitidine Impurity 33). Uses: For analytical and research use. Group: Impurity standards. CAS No. 1698011-17-4. Molecular Formula: C7H14N4O5. Mole Weight: 234.21. Catalog: APB1698011174. Alfa Chemistry Analytical Products
Biotin EP Impurity E (Mixture of Isomers) Biotin EP Impurity E (Mixture of Isomers). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 5-((3aS,4S,6aR)-1-benzyl-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid compound with 5-((3aS,4S,6aR)-3-benzyl-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid. Molecular Formula: C17H22N2O3S. Mole Weight: 334.43. Catalog: APB03921. Alfa Chemistry Analytical Products 3
Bisoprolol EP Impurity E (E-Isomer) Bisoprolol EP Impurity E (E-Isomer). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (E)-3-(4-((2-isopropoxyethoxy)methyl)phenoxy)-N-isopropylprop-2-en-1-amine. Molecular Formula: C18H29NO3. Mole Weight: 307.43. Catalog: APB03588. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 1 (R,S-Isomer) Bortezomib Impurity 1 (R,S-Isomer). Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C57H69B3N12O9. Mole Weight: 1098.68. Catalog: APB06367. Alfa Chemistry Analytical Products 3
Bortezomib Impurity 2 (SR-Isomer, Bortezomib Impurity E) Bortezomib Impurity 2 (SR-Isomer, Bortezomib Impurity E) is an impurity in the synthesis of Bortezomib. Grades: 98% by HPLC. CAS No. 289472-78-2. Molecular formula: C19H24N4O3. Mole weight: 356.43. BOC Sciences 6
Bortezomib Impurity (R,R-Isomer) Bortezomib Impurity (R,R-Isomer) is a diastereomer of Bortezomib. Synonyms: (1R,2R)-Bortezomib; B-[ (1R) -3-Methyl-1-[[ (2R) -1-oxo-3-phenyl-2-[ (2-pyrazinylcarbonyl) amino]propyl]amino]butyl]boronic Acid; [ (1R) -3-Methyl-1-[[ (2R) -1-oxo-3-phenyl-2-[ (pyrazinylcarbonyl) amino]propyl]amino]butyl]boronic Acid. Grades: 98% by HPLC. CAS No. 1132709-15-9. Molecular formula: C19H25BN4O4. Mole weight: 384.25. BOC Sciences 8
Bortezomib Impurity (R,S-Isomer) Bortezomib Impurity (R,S-Isomer) is a diastereomer of Bortezomib. Synonyms: (1S,2R)-Bortezomib; B-[ (1S) -3-Methyl-1-[[ (2R) -1-oxo-3-phenyl-2-[ (2-pyrazinylcarbonyl) amino]propyl]amino]butyl]boronic Acid; N-(2-Pyrazinecarbonyl)-D-phenylalanine-D-leucine boronic anhydride. Grades: > 95%. CAS No. 1132709-16-0. Molecular formula: C19H25BN4O4. Mole weight: 384.25. BOC Sciences 8
Brovudine cis isomer impurity 14 Brovudine cis isomer impurity 14. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 5-((Z)-2-bromovinyl)-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione. CAS No. 77530-02-0. Molecular Formula: C11H13BrN2O5. Mole Weight: 333.14. Catalog: APB77530020. Alfa Chemistry Analytical Products 3
Bumetanide Starting Material Isomer Impurity 1 Bumetanide Starting Material Isomer Impurity 1. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2-chloro-3-nitro-5-sulfamoylbenzoic acid. Molecular Formula: C7H5ClN2O6S. Mole Weight: 279.96. Catalog: APB03485. Alfa Chemistry Analytical Products 4
Bumetanide Starting Material Isomer Impurity 2 Bumetanide Starting Material Isomer Impurity 2. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 4-chloro-2-nitro-5-sulfamoylbenzoic acid. Molecular Formula: C7H5ClN2O6S. Mole Weight: 279.96. Catalog: APB03483. Alfa Chemistry Analytical Products 4
Canagliflozin alpha-Isomer Impurity epi-Canagliflozin is an epimeric impurity of Canagliflozin which is a sodium/glucose cotransporter 2 (SGLT2) inhibitor and is used in the treatment of type 2 diabetes and obesity. Synonyms: (1R)-1,5-Anhydro-1-[3-[[5-(4-fluorophenyl)thiophen-2-yl]methyl]-4-methylphenyl]-D-glucitol; epi-Canagliflozin; D-Glucitol, 1,5-anhydro-1-C-[3-[[5-(4-fluorophenyl)-2-thienyl]methyl]-4-methylphenyl]-, (1R)-; (1R)-1,5-Anhydro-1-C-[3-[[5-(4-fluorophenyl)-2-thienyl]methyl]-4-methylphenyl]-D-glucitol; (2R,3R,4R,5S,6R)-2-(3-((5-(4-fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol; Canagliflozin alpha-Isomer; Canagliflozin α-isomer. Grades: ≥95%. CAS No. 1589590-87-3. Molecular formula: C24H25FO5S. Mole weight: 444.53. BOC Sciences 7
Canagliflozin Isomer Impurity 1 Canagliflozin Isomer Impurity 1. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (2R,3S,4S,5R,6S)-2-(3-((5-(4-fluorophenyl)thiophen-2-yl)methyl)-4-methylphenyl)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol. Molecular Formula: C24H25FO5S. Mole Weight: 444.52. Catalog: APB04407. Alfa Chemistry Analytical Products 3
Cefaclor EP Impurity D (2R-Isomer) An impurity of Cefaclor, a second-generation cephalosporin antibiotic used for the treatment of a wide variety of bacterial infections. Synonyms: (2R,6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid; Cefaclor EP Impurity D; delta-3-cefaclor. Molecular formula: C15H14ClN3O4S. Mole weight: 367.81. BOC Sciences 8
Cefaclor EP Impurity D (2S-Isomer) An impurity of Cefaclor, a second-generation cephalosporin antibiotic used for the treatment of a wide variety of bacterial infections. Synonyms: (2S,6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid; Cefaclor EP Impurity D; delta-3-cefaclor. Molecular formula: C15H14ClN3O4S. Mole weight: 367.81. BOC Sciences 8
Cefaclor EP Impurity G (2R-Isomer) An impurity of Cefaclor, a second-generation cephalosporin antibiotic used for the treatment of a wide variety of bacterial infections. Synonyms: (2R,6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-methylene-8-oxo-5-thia-1-azabicyclo[4.2.0]octane-2-carboxylic acid; Cefaclor EP Impurity G; isocefalexine. Molecular formula: C16H17ClN3O4S. Mole weight: 347.39. BOC Sciences 8
Cefaclor EP Impurity G (2S-Isomer) An impurity of Cefaclor, a second-generation cephalosporin antibiotic used for the treatment of a wide variety of bacterial infections. Synonyms: (2S,6R,7R)-7-[[(2R)-2-amino-2-phenylacetyl]amino]-3-methylene-8-oxo-5-thia-1-azabicyclo[4.2.0]octane-2-carboxylic acid; Cefaclor EP Impurity G; isocefalexine. Molecular formula: C16H17ClN3O4S. Mole weight: 347.39. BOC Sciences 8
Cefmetazole Double Bond Isomer Impurity Cefmetazole Double Bond Isomer Impurity. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C15H17N7O5S3. Mole Weight: 471.53. Catalog: APB07445. Alfa Chemistry Analytical Products 4
Ceftriaxone impurity 29 (ene Isomer) Ceftriaxone impurity 29 (ene Isomer). Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C18H20N8O7S3. Mole Weight: 556.59. Catalog: APB07459. Alfa Chemistry Analytical Products 4
Ceftriaxone impurity 30 (olefin isomer disodium salt) Ceftriaxone impurity 30 (olefin isomer disodium salt). Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C18H16N8Na2O7S3. Mole Weight: 598.53. Catalog: APB07460. Alfa Chemistry Analytical Products 4
Cefuroxime isomer2 (Cefuroxime impurity 4) Cefuroxime isomer2 (Cefuroxime impurity 4). Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C16H16N4O8S. Mole Weight: 424.38. Catalog: APB07168. Alfa Chemistry Analytical Products 4
Cefuroxime isomer (Cefuroxime impurity 3) Cefuroxime isomer (Cefuroxime impurity 3). Uses: For analytical and research use. Group: Impurity standards. CAS No. 229499-08-5. Molecular Formula: C16H16N4O8S. Mole Weight: 424.38. Catalog: APB229499085. Alfa Chemistry Analytical Products 2
Cilastatin Impurity E Isomer Cilastatin Impurity E Isomer. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (E)-7-(((S)-2-amino-2-carboxyethyl)thio)-2-((S)-2,2-dimethylcyclopropanecarboxamido)hept-2-enoic acid. Molecular Formula: C16H26N2O5S. Mole Weight: 358.16. Catalog: APB04651. Alfa Chemistry Analytical Products 3
Cilastatin Isomer Impurity Cilastatin Isomer Impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S,E)-7-(((R)-2-amino-2-carboxyethyl)thio)-2-((S)-2,2-dimethylcyclopropanecarboxamido)hept-3-enoic acid. Molecular Formula: C16H26N2O5S. Mole Weight: 358.45. Catalog: APB04660. Alfa Chemistry Analytical Products 3
Clarithromycin Impurity G (Mixture of Z and E Isomers) Clarithromycin Impurity G (Mixture of Z and E Isomers) is a an impurity of Clarithromycin, an antibiotic widely employed in treating various bacterial infections, including respiratory tract infections, skin and soft tissue infections and Helicobacter pylori infections associated with peptic ulcers. Grades: > 95%. CAS No. 107216-09-1. Molecular formula: C39H72N2O13. Mole weight: 777.01. BOC Sciences 7
Daclatasvir Impurity 1 (RSSS-Isomer) Daclatasvir Impurity 1 (RSSS-Isomer). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: dimethyl ((2S,2'R)-((2S,2'S)-2,2'-(5,5'-([1,1'-biphenyl]-4,4'-diyl)bis(1H-imidazole-5,2-diyl))bis(pyrrolidine-2,1-diyl))bis(3-methyl-1-oxobutane-2,1-diyl))dicarbamate. CAS No. 1417333-83-5. Molecular Formula: C40H50N8O6. Mole Weight: 738.88. Catalog: APB1417333835. Alfa Chemistry Analytical Products
Daclatasvir Impurity 1 (SRSS-Isomer) Daclatasvir Impurity 1 (SRSS-Isomer). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Daclatasvir Impurity 1 (SRSS-Isomer). CAS No. 1009117-28-5. Molecular Formula: C40H50N8O6. Mole Weight: 738.88. Catalog: APB1009117285. Alfa Chemistry Analytical Products
Daptomycin Impurity beta-Isomer Daptomycin Impurity beta-Isomer. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (3S,6S,9S,19R,22S,25R)-31-((S)-2-((S)-4-amino-2-((S)-2-decanamido-3-(1H-indol-3-yl)propanamido)-4-oxobutanamido)-3-carboxypropanamido)-3-(2-(2-aminophenyl)-2-oxoethyl)-25-(3-aminopropyl)-22-(carboxymethyl)-6-((S)-1-carboxypropan-2-yl)-9-(hydroxymethyl)-19. CAS No. 123180-72-3. Molecular Formula: C72H101N17O26. Mole Weight: 1620.67. Catalog: APB123180723. Alfa Chemistry Analytical Products
Decitabine Impurity 1 (alpha-Isomer) Decitabine Impurity 1 (alpha-Isomer) is a pharmacological compound serving as an impurity reference standard for decitabine, a compound primarily employed for the research of myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). It plays a crucial role in facilitating the identification and quantification of impurities present in decitabine formulations. Synonyms: Decitabine Impurity 1. Grades: > 95%. CAS No. 51255-17-5. Molecular formula: C6H12O4. Mole weight: 148.16. BOC Sciences 11
Decitabine Impurity 2 (alpha-Isomer) Decitabine Impurity 2 (alpha-Isomer) is an impurity of Decitabine, a drug prevalently utilized in the therapy of myelodysplastic syndromes and acute myeloid leukemia, garners immense recognition in clinical therapy. Synonyms: Methyl 2-deoxy-3,5-di-O-p-toluoyl-α-D-ribo-furanoside. Grades: > 95%. CAS No. 78185-64-5. Molecular formula: C22H24O6. Mole weight: 384.43. BOC Sciences 8
Decitabine Impurity 2 (beta-Isomer) Decitabine Impurity 2 (beta-Isomer) is an impurity of Decitabine, an efficacious remedy administered in the therapy of specific variants of leukemia. Grades: > 95%. CAS No. 78185-65-6. Molecular formula: C22H24O6. Mole weight: 384.43. BOC Sciences 8
Decitabine Impurity 31 (alpha-Isomers) Decitabine Impurity 31 (alpha-Isomers) is an impurity of Decitabine, which is a potent inhibitor of DNA methylation. Molecular formula: C7H14N4O4. Mole weight: 218.21. BOC Sciences 8
Decitabine impurity 7 (Mixture of α/β isomers) 2-Deoxy-D-erythro-pentopyranosyl chloride bis(4-methylbenzoate) is an impurity of Decitabine, a DNA hypomethylating agent that is used to treat various forms of cancer, such as myelogeneous leukemia and metastatic lung cancerBy inhibiting DNA methyltransferase, Decitabine silences the tumour suppressor genes and, consequently, "normalizing" gene expression in cancerous cells. Synonyms: 2-Deoxy-D-erythro-pentopyranosyl Chloride Bis(4-methylbenzoate). Grades: > 95%. CAS No. 20535-28-8. Molecular formula: C21H21ClO5. Mole weight: 388.84. BOC Sciences 8
Deferasirox Impurity 19 (Mixture of Isomers) Deferasirox Impurity 19 is an impurity of Deferasirox. Deferasirox is an oral iron chelator used to treat chronic iron overload in patients receiving long term blood transfusions. Molecular formula: C42H28N6O9S. Mole weight: 792.77. BOC Sciences 6
Doripenem Impurity MAP-alfa isomer (Meropenem Related Compound 1) Doripenem Impurity MAP-alfa isomer is a Meropenem intermediate. Synonyms: 4-Nitrobenzyl (4S,5R,6S)-3-[(diphenylphosphono)oxy]-6-[(R)-1-hydroxyethyl]-4-methyl-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate. Grades: > 95%. CAS No. 189188-38-3. Molecular formula: C29H27N2O10P. Mole weight: 594.51. BOC Sciences 8
E-isomer Cefmenoxime impurity E-isomer Cefmenoxime impurity. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (6R,7R)-7-((E)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido)-3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. Molecular Formula: C16H17N9O5S3. Mole Weight: 511.56. Catalog: APB04428. Alfa Chemistry Analytical Products 4
Estradiol valerate isomers (Estradiol valerate impurity 7) Estradiol valerate isomers (Estradiol valerate impurity 7). Uses: For analytical and research use. Group: Impurity standards. CAS No. 182624-54-0. Molecular Formula: C23H32O3. Mole Weight: 356.51. Catalog: APB182624540. Alfa Chemistry Analytical Products 2
Everolimus EP Impurity B (19-Z-Isomer) Everolimus EP Impurity B (19-Z-Isomer). Uses: For analytical and research use. Group: Impurity standards. CAS No. 763911-41-7. Molecular Formula: C53H83NO14. Mole Weight: 958.24. Catalog: APB763911417. Alfa Chemistry Analytical Products 3
Flurbiprofen Impurity (3-Fluoro isomer) Flurbiprofen Impurity (3-Fluoro isomer) is an impurity of flurbiprofen, a preeminent nonsteroidal anti-inflammatory drug (NSAID) renowned for mollifying pain and inflammation linked to rheumatoid arthritis, osteoarthritis and numerous musculoskeletal afflictions. Grades: > 95%. Molecular formula: C19H19FO4. Mole weight: 330.36. BOC Sciences 8
Fluticasone Propionate EP Impurity K (6R-Chloro Isomer) Fluticasone Propionate EP Impurity K (6R-Chloro Isomer). Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C25H31ClF2O5S. Mole Weight: 517.03. Catalog: APB07934. Alfa Chemistry Analytical Products 4
Formoterol EP Impurity I (R,S-Isomer) Formoterol EP Impurity I (R,S-Isomer). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: N-(2-hydroxy-5-((R)-1-hydroxy-2-(((S)-1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)formamide. CAS No. 67346-51-4. Molecular Formula: C19H24N2O4. Mole Weight: 344.4. Catalog: APB67346514. Alfa Chemistry Analytical Products 3
Formoterol EP Impurity I (S,R-Isomer) Formoterol EP Impurity I (S,R-Isomer). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: N-(2-hydroxy-5-((S)-1-hydroxy-2-(((R)-1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)formamide. CAS No. 67346-50-3. Molecular Formula: C19H24N2O4. Mole Weight: 344.4. Catalog: APB67346503. Alfa Chemistry Analytical Products 3
Formoterol Fumarate Dihydrate EP Impurity I (R,S-isomer) ((R,S)-Formoterol) Formoterol Fumarate Dihydrate EP Impurity I (R,S-isomer) ((R,S)-Formoterol) is an impurity of Formoterol Fumarate Dihydrate, a drug used for the therapy of various respiratory disorders, including asthma and chronic obstructive pulmonary disease (COPD). Synonyms: Formamide, N-[2-hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]-, [R-(R*,S*)]-. Grades: > 95%. CAS No. 67346-51-4. Molecular formula: C19H24N2O4. Mole weight: 344.41. BOC Sciences 8
Formoterol Fumarate Dihydrate EP Impurity I (S,R-isomer) Formoterol Fumarate Dihydrate EP Impurity I (S,R-isomer) is an extensively refined derivative of Formoterol Fumarate Dihydrate. Formoterol Fumarate Dihydrate is an indispensable long-acting beta2-adrenergic agonist (LABA) bronchodilator. Synonyms: (S,R)-Formoterol; Formamide, N-[2-hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]-, [S-(R*,S*)]-. Grades: > 95%. CAS No. 67346-50-3. Molecular formula: C19H24N2O4. Mole weight: 344.41. BOC Sciences 8
Fosinopril impurity (2R, 4S isomer) Grades: > 95%. Molecular formula: C30H46NO7P. Mole weight: 563.68. BOC Sciences 8
Glycopyrrolate Impurity I (mixture of RR-Isomer and SS-Isomer) BOC Sciences 6
Glycopyrrolate Impurity I (mixture of RS-Isomer and SR-Isomer) BOC Sciences 6
Glycopyrrolate Impurity I (RR-Isomer) BOC Sciences 6
Glycopyrrolate Impurity I (RS-Isomer) BOC Sciences 6
Glycopyrrolate Impurity I (SR-Isomer) BOC Sciences 6

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