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Impurities & Reference Standards
Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.
27,990products
6sub-categories
2,746in stock
COA + SDSwith every lot
API Impurities 14,098Pharmacopeial Impurities (EP / USP / BP) 4,399Nitrosamine Impurities 631Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504Metabolites & Degradation Products 3,922API Reference Standards 3,436
![(2S,2'S,3S,3'S)-4,4'-((((4,8-di(piperidin-1-yl)pyrimido[5,4-d]pyrimidine-2,6-diyl)bis((2-hydroxyethyl)azanediyl))bis(ethane-2,1-diyl))bis(oxy))bis(2,3-dihydroxy-4-oxobutanoic acid) chemical structure](/media/structures/VUMBJDQSYUAXHN-ZJZGAYNASA-N.svg)
(2S,2'S,3S,3'S)-4,4'-((((4,8-di(piperidin-1-yl)pyrimido[5,4-d]pyrimidine-2,6-diyl)bis((2-hydroxyethyl)azanediyl))bis(ethane-2,1-diyl))bis(oxy))bis(2,3-dihydroxy-4-oxobutanoic acid)
- CAS
- 1316276-51-3
- Formula
- C32H48N8O14
- MW
- 768.8 g/mol
VQ-044103
(2S,2'S,4S,4'S)-N,N'-(Disulfanediylbis(ethane-2,1-diyl))bis(4-(4-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazin-1-yl)pyrrolidine-2-carboxamide)
- CAS
- 2407632-31-7
- Formula
- C42H58N12O2S2
- MW
- 827.1 g/mol
VQ-044924
![(2S,2'S)-1,1'-[[(3-Hydroxytricyclo[3.3.1.13,7]dec-1-yl)imino]bis(1-oxo-2,1-ethanediyl)]bis-2-pyrrolidinecarbonitrile chemical structure](/media/structures/UBWUDDDAHPQAQV-SLICPZRKSA-N.svg)
(2S,2'S)-1,1'-[[(3-Hydroxytricyclo[3.3.1.13,7]dec-1-yl)imino]bis(1-oxo-2,1-ethanediyl)]bis-2-pyrrolidinecarbonitrile
- CAS
- 1036959-23-5
- Formula
- C24H33N5O3
- MW
- 439.6 g/mol
VQ-024012
(2S,3AS,7aS)-Benzyl octahydro-1H-indole-2-carboxylate 4-methylbenzenesulfonate
- CAS
- 94062-52-9
- Formula
- C23H29NO5S
- MW
- 431.5 g/mol
VQ-041414
![(2S,3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile chemical structure](/media/structures/PJXBLWLWNWGFJO-CSEBVFCESA-N.svg)
(2S,3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile
- CAS
- 1369903-46-7
- Formula
- C33H31N5O4
- MW
- 561.6 g/mol
VQ-033492
(2S,3R,4R,5S,6R)-2-(3-((5-(4-Fluorophenyl)thiophen-2-yl)(hydroperoxy)methyl)-4-methylphenyl)-6-(hydroxymethyl)-tetrahydro-2H-pyran-3,4,5-triol
- CAS
- 2247196-28-5
- Formula
- C24H25FO7S
- MW
- 476.5 g/mol
VQ-021054
(2S,3R,4R,5S)-3-(3,4-Difluoro-2-methoxyphenyl)-4,5-dimethyl-5-(trifluoromethyl)tetrahydrofuran-2-carboxylic Acid
- CAS
- 3030223-34-5
- Formula
- C15H15F5O4
- MW
- 354.27 g/mol
VQ-028159
![(2S,3R,4S,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-carbonitrile chemical structure](/media/structures/BRDWIEOJOWJCLU-UGKPPGOTSA-N.svg)
(2S,3R,4S,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-carbonitrile
- CAS
- 1355049-95-4
- Formula
- C12H13N5O4
- MW
- 291.26 g/mol
VQ-035070
(2S,3R,4S,5R)-2-(6-Amino-2-chloro-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol Hydrochloride
- CAS
- 2015222-38-3
- Formula
- C10H13Cl2N5O4
- MW
- 338.14 g/mol
VQ-041857
(2S,3R,4S,5R)-2-(Hydroxymethyl)piperidine-3,4,5-triol
- CAS
- 126663-71-6
- Formula
- C6H13NO4
- MW
- 163.17 g/mol
VQ-035373
(2S,3R,4S,5S)-2-(4-Chloro-3-(4-ethoxybenzyl)phenyl)-6,6-bis(hydroxymethyl)-2-methoxytetrahydro-2H-pyran-3,4,5-triol
- CAS
- 1528636-39-6
- Formula
- C23H29ClO8
- MW
- 468.9 g/mol
VQ-037065
(2S,3R,4S,6R)-2-(((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-Ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyl-5-((propylamino)methyl)tetrahydro-2H-pyran-2-yl)oxy)-3,5,8,10,12,14-hexamethyl-15-oxo-1-oxa-6-azacyclopentadecan-11-yl)oxy)-3-hydroxy-N,N,6-trimethyltetrahyd
- CAS
- 2051579-09-8
- Formula
- C41H79N3O13
- MW
- 822.1 g/mol
VQ-042736
(2S,3R,6R)-6-Ethyl-3-methyl-2-(3-oxobutyl)-cyclohexanone
- CAS
- 958447-27-3
- Formula
- C13H22O2
- MW
- 210.31 g/mol
VQ-024364
![(2S,3R,6RS)-2-(3-Oxobutyl)-3-methyl-6-[(R)-2-propanal]cyclohexanone Mixture of Diastereomers chemical structure](/media/structures/RTBJZMMNKXQFDB-AFEADNKKSA-N.svg)
(2S,3R,6RS)-2-(3-Oxobutyl)-3-methyl-6-[(R)-2-propanal]cyclohexanone Mixture of Diastereomers
- CAS
- 1093625-96-7
- Formula
- C14H22O3
- MW
- 238.32 g/mol
VQ-020834
(2S,3R)-2-(2,4-Difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-2,3-butanediol
- CAS
- 135272-36-5
- Formula
- C12H13F2N3O2
- MW
- 269.25 g/mol
VQ-025489
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