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
(1R,4R)-2-Methyl-1-phenyl-1,2,3,4-tetrahydroisoquinoline-4,6-diol
- CAS
- 2095343-25-0
- Formula
- C16H17NO2
- MW
- 255.31 g/mol
VQ-042035
![(1R,4R)-Rel-4-[2-Amino-6-(cyclopropylamino)-9H-purin-9-yl]-2-cyclopentene-1-methanol Hydrochloride chemical structure](/media/structures/QXNOPHSMRJNHHG-GNAZCLTHSA-N.svg)
(1R,4R)-Rel-4-[2-Amino-6-(cyclopropylamino)-9H-purin-9-yl]-2-cyclopentene-1-methanol Hydrochloride
- CAS
- 267668-71-3
- Formula
- C14H19ClN6O
- MW
- 322.79 g/mol
VQ-028974
(1R,4S,4AR,9aS)-rel-1,4,4a,9a-Tetrahydro-4a-methyl-1,4-methanoanthracene-9,10-dione
- CAS
- 97804-50-7
- Formula
- C16H14O2
- MW
- 238.28 g/mol
VQ-033172
(1R,4S)-1-Methyl-4-(prop-1-en-2-yl)cyclohex-2-en-1-ol
- CAS
- 82769-01-5
- Formula
- C10H16O
- MW
- 152.23 g/mol
VQ-044666
![(1R,4S)-2-Oxa-3-azabicyclo[2.2.1]heptane Hydrochloride](/media/pack/1r4s-2-oxa-3-azabicyclo2-2-1heptane-hydrochloride.svg?v=3)
(1R,4S)-2-Oxa-3-azabicyclo[2.2.1]heptane Hydrochloride
- CAS
- 2411506-37-9
- Formula
- C5H10ClNO
- MW
- 135.59 g/mol
VQ-021830
![(1R,5R,6R)-5-(1-Ethylpropoxy)-7-azabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Ethyl Ester chemical structure](/media/structures/HPKPKUHYXGQYRO-JHJVBQTASA-N.svg)
(1R,5R,6R)-5-(1-Ethylpropoxy)-7-azabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Ethyl Ester
- CAS
- 204255-02-7
- Formula
- C14H23NO3
- MW
- 253.34 g/mol
VQ-032299
![(1R,5R,6R)-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Ethyl Ester chemical structure](/media/structures/XZXCGRFGEVXWIT-UPJWGTAASA-N.svg)
(1R,5R,6R)-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Ethyl Ester
- CAS
- 1266663-89-1
- Formula
- C14H22O4
- MW
- 254.32 g/mol
VQ-032298
![(1R,5S,6R)-Rel-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Ethyl Ester chemical structure](/media/structures/XZXCGRFGEVXWIT-XQQFMLRXSA-N.svg)
(1R,5S,6R)-Rel-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Ethyl Ester
- CAS
- 347378-74-9
- Formula
- C14H22O4
- MW
- 254.32 g/mol
VQ-038795
![(1R,5S,6S)-Rel-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Methyl Ester chemical structure](/media/structures/BWNDCLRNSUNXGU-GRYCIOLGSA-N.svg)
(1R,5S,6S)-Rel-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Methyl Ester
- CAS
- 1234858-94-6
- Formula
- C13H20O4
- MW
- 240.29 g/mol
VQ-038806
![(1R,5S,Z)-4-(2,2,2-Trifluoro-1-hydroxyethylidene)spiro[bicyclo[3.1.0]hexane-2,2'-[1,3]dithiolan]-3-one compound with diisopropylamine (1:1)](/media/pack/1r5sz-4-222-trifluoro-1-hydroxyethylidenespirobicyclo3-1-0hexane-22-13dithiolan-3-one.svg?v=3)
(1R,5S,Z)-4-(2,2,2-Trifluoro-1-hydroxyethylidene)spiro[bicyclo[3.1.0]hexane-2,2'-[1,3]dithiolan]-3-one compound with diisopropylamine (1:1)
- CAS
- 2939750-77-1
- Formula
- C16H24F3NO2S2
- MW
- 383.49 g/mol
VQ-037937
![(1R,5S)-3-Ethylbicyclo[3.2.0]hept-3-en-6-one chemical structure](/media/structures/QEGONAXSXKFDLY-HTQZYQBOSA-N.svg)
(1R)-1-(3,4-Dimethoxybenzyl)-6,7-dimethoxy-2-(3-methoxy-3-oxopropyl)-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium iodide
- CAS
- 1075726-86-1
- Formula
- C25H34INO6
- MW
- 571.4 g/mol
VQ-044036
![(1R)-2-[[6-[2-[(2,6-Dichlorobenzyl)oxy]ethoxy]hexyl]amino]-1-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)ethanol chemical structure](/media/structures/OWOCWBVFWIFQCF-VWLOTQADSA-N.svg)
(1R)-2-[[6-[2-[(2,6-Dichlorobenzyl)oxy]ethoxy]hexyl]amino]-1-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)ethanol
- CAS
- 503068-37-9
- Formula
- C27H37Cl2NO5
- MW
- 526.5 g/mol
VQ-034602
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