Product division
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
(5-Ethyl-1H-imidazol-4-yl)methanol hydrochloride
- CAS
- 38603-74-6
- Formula
- C6H11ClN2O
- MW
- 162.62 g/mol
VQ-021159
![(5-Methyl-2-oxo-1,3-dioxol-4-yl)methyl 2-ethoxy-1-((2'-(5-ethoxy-1,2,4-oxadiazol-3-yl)-[1,1'-biphenyl]-4-yl)methyl)-1H-benzo[d]imidazole-7-carboxylate chemical structure](/media/structures/FNBBUJVGGJFAMY-UHFFFAOYSA-N.svg)
(5-Methyl-2-oxo-1,3-dioxol-4-yl)methyl 2-ethoxy-1-((2'-(5-ethoxy-1,2,4-oxadiazol-3-yl)-[1,1'-biphenyl]-4-yl)methyl)-1H-benzo[d]imidazole-7-carboxylate
- CAS
- 2741865-60-9
- Formula
- C32H28N4O8
- MW
- 596.6 g/mol
VQ-029334
![(5-Methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxybutan-2-yl)-2-propyl-1-((2'-(1-trityl-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-1H-imidazole-5-carboxylate chemical structure](/media/structures/SWMPUUQGQANUNP-UHFFFAOYSA-N.svg)
(5-Methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-(2-hydroxybutan-2-yl)-2-propyl-1-((2'-(1-trityl-1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-1H-imidazole-5-carboxylate
- CAS
- 1378863-72-9
- Formula
- C49H46N6O6
- MW
- 814.9 g/mol
VQ-038741
(5-Methyl-2-oxo-1,3-dioxol-4-yl)methyl 4-methylbenzenesulfonate
- CAS
- 91526-16-8
- Formula
- C12H12O6S
- MW
- 284.29 g/mol
VQ-035894
![(5-PyriMidinecarboxylicacid, 4-[[(3-chloro-4-Methoxyphenyl)Methyl]aMino]-2-(Methylthio)-,ethyl ester) chemical structure](/media/structures/WLOQDGSMJNYRRC-UHFFFAOYSA-N.svg)
(5-PyriMidinecarboxylicacid, 4-[[(3-chloro-4-Methoxyphenyl)Methyl]aMino]-2-(Methylthio)-,ethyl ester)
- CAS
- 330785-81-4
- Formula
- C16H18ClN3O3S
- MW
- 367.9 g/mol
VQ-045253
![(5R,6R)-6-[(1R)-1-[3,5-Bis(trifluoromethyl)phenyl]ethoxy]-5-(4-fluorophenyl)-3-morpholinone chemical structure](/media/structures/UISOBKKSNVFVOF-AQQIJUCISA-N.svg)
(5R,6R)-6-[(1R)-1-[3,5-Bis(trifluoromethyl)phenyl]ethoxy]-5-(4-fluorophenyl)-3-morpholinone
- CAS
- 419574-33-7
- Formula
- C20H16F7NO3
- MW
- 451.3 g/mol
VQ-035082
![(5R,6S)-6-((R)-1-Hydroxyethyl)-7-oxo-3-((S)-tetrahydrofuran-2-yl)-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid chemical structure](/media/structures/HGGAKXAHAYOLDJ-WAYXCLAOSA-N.svg)
(5R,6S)-6-((R)-1-Hydroxyethyl)-7-oxo-3-((S)-tetrahydrofuran-2-yl)-4-thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid
- CAS
- 106560-13-8
- Formula
- C12H15NO5S
- MW
- 285.32 g/mol
VQ-045004
![(5R,8S,9R,10S,13S,14S,17R)-13-Ethyl-17-ethynyl-11-methylene-2,5,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-ol chemical structure](/media/structures/RSMGIILCLKIXNG-GDLCRWSOSA-N.svg)
(5R,8S,9R,10S,13S,14S,17R)-13-Ethyl-17-ethynyl-11-methylene-2,5,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-ol
- CAS
- 201360-83-0
- Formula
- C22H30O
- MW
- 310.5 g/mol
VQ-044388
(5R)-3-(4-Bromo-3-fluorophenyl)-5-(hydroxymethyl)-2-oxazolidinone
- CAS
- 444335-16-4
- Formula
- C10H9BrFNO3
- MW
- 290.09 g/mol
VQ-023409
![(5R)-3-[6-[2-[(2,6-Dichlorophenyl)methoxy]ethoxy]hexyl]-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-one chemical structure](/media/structures/XQWNKZGGCAFXHI-SANMLTNESA-N.svg)
(5R)-3-[6-[2-[(2,6-Dichlorophenyl)methoxy]ethoxy]hexyl]-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-one
- CAS
- 503068-36-8
- Formula
- C28H35Cl2NO6
- MW
- 552.5 g/mol
VQ-042877
(5R)-6-Cyano-5-hydroxy-3-oxo-hexanoic Acid tert-Butyl Ester
- CAS
- 125988-01-4
- Formula
- C11H17NO4
- MW
- 227.26 g/mol
VQ-024409
![(5S,6S,9R)-5-Amino-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-ol chemical structure](/media/structures/LZGRTPPTGDJDKZ-ZBINZKHDSA-N.svg)
(5S,6S,9R)-5-Amino-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-ol
- CAS
- 1373116-05-2
- Formula
- C16H16F2N2O
- MW
- 290.31 g/mol
VQ-033550
![(5S,6S,9R)-5-Amino-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-ol Dihydrochloride chemical structure](/media/structures/CVLHZDNYCBDZFV-YXZKBNGESA-N.svg)
(5S,6S,9R)-5-Amino-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-ol Dihydrochloride
- CAS
- 1373116-07-4
- Formula
- C16H18Cl2F2N2O
- MW
- 363.2 g/mol
VQ-033551
![(5S,6S,9R)-6-(2,3-Difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-5-amine Dihydrochloride chemical structure](/media/structures/XVSHWNVACRGINI-JNBCVTSQSA-N.svg)
(5S,6S,9R)-6-(2,3-Difluorophenyl)-9-((triisopropylsilyl)oxy)-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-5-amine Dihydrochloride
- CAS
- 1373116-04-1
- Formula
- C25H38Cl2F2N2OSi
- MW
- 519.6 g/mol
VQ-041917
![(5S)-1-(2-Hydroxyethyl)-4-methyl-5-[2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carboxylic Acid chemical structure](/media/structures/IVQABNHAUVXTRE-UHFFFAOYSA-N.svg)
(5S)-1-(2-Hydroxyethyl)-4-methyl-5-[2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carboxylic Acid
- CAS
- 1632002-11-9
- Formula
- C15H14F3NO3
- MW
- 313.27 g/mol
VQ-023420
(5S)-3-(4-Bromo-3-fluorophenyl)-5-(hydroxymethyl)-2-oxazolidinone
- CAS
- 1369530-77-7
- Formula
- C10H9BrFNO3
- MW
- 290.09 g/mol
VQ-028221
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