Product division
Impurities & Reference Standards
Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.
28,554products
6sub-categories
2,746in stock
COA + SDSwith every lot
API Impurities 14,252Pharmacopeial Impurities (EP / USP / BP) 4,401Nitrosamine Impurities 650Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612Metabolites & Degradation Products 4,146API Reference Standards 3,493
![5-(Difluoromethoxy)-1,3-dihydro-2H-benzo[d]imidazol-2-one chemical structure](/media/structures/WGSZJVSNGVDBHX-UHFFFAOYSA-N.svg)
5-(Difluoromethoxy)-1,3-dihydro-2H-benzo[d]imidazol-2-one
- CAS
- 1806469-15-7
- Formula
- C8H6F2N2O2
- MW
- 200.14 g/mol
VQ-033048
5-(Isopropoxycarbonyl)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylic Acid
- CAS
- 74936-69-9
- Formula
- C18H20N2O6
- MW
- 360.4 g/mol
VQ-044399
5-(Mercaptomethyl)-3-(((5-nitrofuran-2-yl)methylene)amino)oxazolidin-2-one
- CAS
- 34143-33-4
- Formula
- C9H9N3O5S
- MW
- 271.25 g/mol
VQ-035095
5-(Methoxycarbonyl)-2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3-carboxylic Acid
- CAS
- 74936-71-3
- Formula
- C16H16N2O6
- MW
- 332.31 g/mol
VQ-035932
5-(Methoxycarbonyl)-2,6-dimethyl-4-(4-nitrophenyl)-1,4-dihydropyridine-3-carboxylic Acid
- CAS
- 166808-97-5
- Formula
- C16H16N2O6
- MW
- 332.31 g/mol
VQ-044371
![5-(Propylthio)-1H-benzo[d]imidazole chemical structure](/media/structures/MQIHTRQQMLCMLM-UHFFFAOYSA-N.svg)
5-(Trifluoromethyl)-2-(chloromethyl)-1,3,4-oxadiazole
- CAS
- 723286-98-4
- Formula
- C4H2ClF3N2O
- MW
- 186.52 g/mol
VQ-028054
![5-[(1E)-2-(4-Bromophenyl)Ethenyl]-1,3-Benzenediol chemical structure](/media/structures/NCJVLKFAQIWASE-OWOJBTEDSA-N.svg)
5-[(1E)-2-(4-Bromophenyl)Ethenyl]-1,3-Benzenediol
- CAS
- 1224713-90-9
- Formula
- C14H11BrO2
- MW
- 291.14 g/mol
VQ-049671
![5-[(2-Chloroethyl)(2-hydroxyethyl)amino]-1-methyl-1H-benzimidazole-2-butanoic Acid Ethyl Ester chemical structure](/media/structures/HYJTZPVNEXQTBH-UHFFFAOYSA-N.svg)
5-[(2-Chloroethyl)(2-hydroxyethyl)amino]-1-methyl-1H-benzimidazole-2-butanoic Acid Ethyl Ester
- CAS
- 898224-95-8
- Formula
- C18H26ClN3O3
- MW
- 367.9 g/mol
VQ-021761
amino]propyl]-2-methoxybenzenesulfonamide chemical structure](/media/structures/XLTRGHVIIKHXCX-OAQYLSRUSA-N.svg)
5-[(2R)-2-[[2-(2-Ethoxyphenoxy)ethyl](phenylmethyl)amino]propyl]-2-methoxybenzenesulfonamide
- CAS
- 1027854-97-2
- Formula
- C27H34N2O5S
- MW
- 498.6 g/mol
VQ-028205
![5-[(2R)-2-Aminopropyl]-1-[3-(benzoyloxy)propyl]-2,3-dihydro-1H-indole-7-carbonitrile (2R,3R)-2,3-Dihydroxybutanedioate chemical structure](/media/structures/KYUCVOVGODORNE-NUFNRNBZSA-N.svg)
5-[(2R)-2-Aminopropyl]-1-[3-(benzoyloxy)propyl]-2,3-dihydro-1H-indole-7-carbonitrile (2R,3R)-2,3-Dihydroxybutanedioate
- CAS
- 239463-85-5
- Formula
- C26H31N3O8
- MW
- 513.5 g/mol
VQ-042172
![5-[2-(1,2,3,4-Tetrahydro-2,8-dimethyl-5H-pyrido[4,3-b]indol-5-yl)ethyl]-2-pyridinecarboxylic acid chemical structure](/media/structures/QQMYEGPFXPDHCV-UHFFFAOYSA-N.svg)
5-[2-(1,2,3,4-Tetrahydro-2,8-dimethyl-5H-pyrido[4,3-b]indol-5-yl)ethyl]-2-pyridinecarboxylic acid
- CAS
- 1147893-81-9
- Formula
- C21H23N3O2
- MW
- 349.4 g/mol
VQ-037912
![5-[2-Formyl-5-(hydroxymethyl)-1H-pyrrol-1-yl]-2-hydroxybenzoic Acid chemical structure](/media/structures/VUXRLABGWNUXQB-UHFFFAOYSA-N.svg)
5-[2-Formyl-5-(hydroxymethyl)-1H-pyrrol-1-yl]-2-hydroxybenzoic Acid
- CAS
- 876903-48-9
- Formula
- C13H11NO5
- MW
- 261.23 g/mol
VQ-031793
![5-[4-[[3-Chloro-4-[(3-fluorophenyl)methoxy]phenyl]amino]-6-quinazolinyl]-2-furancarboxaldehyde chemical structure](/media/structures/XQPZOUAAXRXPAM-UHFFFAOYSA-N.svg)
5-[4-[[3-Chloro-4-[(3-fluorophenyl)methoxy]phenyl]amino]-6-quinazolinyl]-2-furancarboxaldehyde
- CAS
- 231278-84-5
- Formula
- C26H17ClFN3O3
- MW
- 473.9 g/mol
VQ-022924
![5-[4'-(Dibromomethyl)[1,1'-biphenyl]-2-yl]-2-(triphenylmethyl)-2H-tetrazole chemical structure](/media/structures/KKTYIAGAGAAHSK-UHFFFAOYSA-N.svg)
5-[4'-(Dibromomethyl)[1,1'-biphenyl]-2-yl]-2-(triphenylmethyl)-2H-tetrazole
- CAS
- 151052-34-5
- Formula
- C33H24Br2N4
- MW
- 636.4 g/mol
VQ-023004
![5-[4′-Hydroxymethyl-(1,1′-biphenyl)-2-yl]-1-triphenylmethyltetrazole chemical structure](/media/structures/QTMWXNFBOZZDCQ-UHFFFAOYSA-N.svg)
5-[4′-Hydroxymethyl-(1,1′-biphenyl)-2-yl]-1-triphenylmethyltetrazole
- CAS
- 154709-18-9
- Formula
- C33H26N4O
- MW
- 494.6 g/mol
VQ-021285
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