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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 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

(±)-N-Ethylnoradrenaline Hydrochloride chemical structure

(±)-N-Ethylnoradrenaline Hydrochloride

CAS: 3594-85-2
Formula: C₁₀H₁₆ClNO₃
MW: 233.69 g/mol

VQ-024149

Reference Standard

(±)-Naproxen-d3 chemical structure

(±)-Naproxen-d3

CAS: 958293-77-1
Formula: C₁₄H₁₄O₃
MW: 233.28 g/mol

VQ-043429

Reference Standard

(±)-p-Fenfluramine Hydrochloride chemical structure

(±)-p-Fenfluramine Hydrochloride

CAS: 54779-55-4
Formula: C₁₂H₁₇ClF₃N
MW: 267.72 g/mol

VQ-035487

Reference Standard

(±)-Scopolamine chemical structure

(±)-Scopolamine

CAS: 138-12-5
Formula: C₁₇H₂₁NO₄
MW: 303.35 g/mol

VQ-043730

Reference Standard

(±)-trans-2-Phenylcyclopropylamine hydrochloride chemical structure

(±)-trans-2-Phenylcyclopropylamine hydrochloride

CAS: 1986-47-6
Formula: C₉H₁₂ClN
MW: 169.65 g/mol

VQ-034389

Reference Standard

(1`R,2`S)-Cis-Nicotine-1`-N-oxide chemical structure

(1`R,2`S)-Cis-Nicotine-1`-N-oxide

CAS: 51020-67-8
Formula: C₁₀H₁₄N₂O
MW: 178.23 g/mol

VQ-032141

Reference Standard

(1-(2-Hydroxyethyl)piperidin-4-yl)(phenyl)methanone chemical structure

(1-(2-Hydroxyethyl)piperidin-4-yl)(phenyl)methanone

CAS: 139676-51-0
Formula: C₁₄H₁₉NO₂
MW: 233.31 g/mol

VQ-034487

Reference Standard

(1-(3-Methoxyphenyl)-2-methylpentan-1-one) chemical structure

(1-(3-Methoxyphenyl)-2-methylpentan-1-one)

CAS: 1592075-83-6
Formula: C₁₃H₁₈O₂
MW: 206.28 g/mol

VQ-044747

Reference Standard

(1-6)-Icatibant chemical structure

(1-6)-Icatibant

CAS: 2698340-93-9
Formula: C₃₁H₅₀N₁₂O₈S
MW: 750.9 g/mol

VQ-031145

Reference Standard

(1-Aminocyclohexyl)acetic acid chemical structure

(1-Aminocyclohexyl)acetic acid

CAS: 37631-92-8
Formula: C₈H₁₅NO₂
MW: 157.21 g/mol

VQ-040298

Reference Standard

(1-Benzyl-4-piperidinyl)methanol chemical structure

(1-Benzyl-4-piperidinyl)methanol

CAS: 67686-01-5
Formula: C₁₃H₁₉NO
MW: 205.3 g/mol

VQ-043758

Reference Standard

(1-Bromo-2-methylpropyl)cyclopropane chemical structure

(1-Bromo-2-methylpropyl)cyclopropane

CAS: 88106-31-4
Formula: C₇H₁₃Br
MW: 177.08 g/mol

VQ-041601

Reference Standard

(1-Hydroxy-3-(methylamino)propane-1,1-diyl)diphosphonic Acid chemical structure

(1-Hydroxy-3-(methylamino)propane-1,1-diyl)diphosphonic Acid

CAS: 128202-57-3
Formula: C₄H₁₃NO₇P₂
MW: 249.1 g/mol

VQ-031117

Reference Standard

(1-Imidazolyl)acetonitrile chemical structure

(1-Imidazolyl)acetonitrile

CAS: 98873-55-3
Formula: C₅H₅N₃
MW: 107.11 g/mol

VQ-031676

Reference Standard

(1-Methyl-2-phenyl-ethyl)-carbamic acid isobutyl ester chemical structure

(1-Methyl-2-phenyl-ethyl)-carbamic acid isobutyl ester

CAS: 27822-62-4
Formula: C₁₄H₂₁NO₂
MW: 235.32 g/mol

VQ-038383

Reference Standard

(1-Methyl-4-piperidinyl)[1-(2-phenylethyl)-1H-imidazol-2-yl]methanone chemical structure

(1-Methyl-4-piperidinyl)[1-(2-phenylethyl)-1H-imidazol-2-yl]methanone

CAS: 147082-78-8
Formula: C₁₈H₂₃N₃O
MW: 297.4 g/mol

VQ-024186

Reference Standard

(1-Methylpiperidin-4-yl)(1-phenethyl-1H-imidazol-2-yl)methanone Hydrochloride

(1-Methylpiperidin-4-yl)(1-phenethyl-1H-imidazol-2-yl)methanone Hydrochloride

CAS: 1629676-26-1
Formula: C₁₈H₂₃N₃O.HCl
MW: 297.4 g/mol

VQ-047355

Reference Standard

(1-Methylpiperidin-4-yl)(pyridin-2-yl)methanone chemical structure

(1-Methylpiperidin-4-yl)(pyridin-2-yl)methanone

CAS: 517875-04-6
Formula: C₁₂H₁₆N₂O
MW: 204.27 g/mol

VQ-031453

Reference Standard

(1-Methylpyrrolidin-3-yl)(pyridin-3-yl)methanone chemical structure

(1-Methylpyrrolidin-3-yl)(pyridin-3-yl)methanone

CAS: 125630-26-4
Formula: C₁₁H₁₄N₂O
MW: 190.24 g/mol

VQ-049231

Reference Standard

(1-Nitrosopiperidin-2-yl)methanol chemical structure

(1-Nitrosopiperidin-2-yl)methanol

CAS: 64605-07-8
Formula: C₆H₁₂N₂O₂
MW: 144.17 g/mol

VQ-044717

Reference Standard

(1-Trityl-1H-imidazol-4-yl)methanol chemical structure

(1-Trityl-1H-imidazol-4-yl)methanol

CAS: 33769-07-2
Formula: C₂₃H₂₀N₂O
MW: 340.4 g/mol

VQ-031759

Reference Standard

(1,2,6,7,-Tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)acetonitrile chemical structure

(1,2,6,7,-Tetrahydro-8H-indeno[5,4-b]furan-8-ylidene)acetonitrile

CAS: 221530-44-5
Formula: C₁₃H₁₁NO
MW: 197.23 g/mol

VQ-033436

Reference Standard

(1,4,5,6-Tetrahydropyrimidin-2-yl)methanamine chemical structure

(1,4,5,6-Tetrahydropyrimidin-2-yl)methanamine

CAS: 759408-08-7
Formula: C₅H₁₁N₃
MW: 113.16 g/mol

VQ-043060

Reference Standard

(1'R,2R)-2-(2'-Tosyl-1',2'-dihydroxyethyl)-6-fluorochromane chemical structure

(1'R,2R)-2-(2'-Tosyl-1',2'-dihydroxyethyl)-6-fluorochromane

CAS: 303176-46-7
Formula: C₁₈H₁₉FO₅S
MW: 366.4 g/mol

VQ-038574

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