Skip to content

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 14,098 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

2-(Bromomethyl)benzamide chemical structure

2-(Bromomethyl)benzamide

CAS: 872414-52-3
Formula: C₈H₈BrNO
MW: 214.06 g/mol

VQ-028950

Reference Standard

2-(Bromomethyl)naphthalene chemical structure

2-(Bromomethyl)naphthalene

CAS: 939-26-4
Formula: C₁₁H₉Br
MW: 221.09 g/mol

VQ-049368

Reference Standard

2-(Chloro(4-chlorophenyl)methyl)pyridine chemical structure

2-(Chloro(4-chlorophenyl)methyl)pyridine

CAS: 142404-69-1
Formula: C₁₂H₉Cl₂N
MW: 238.11 g/mol

VQ-035395

Reference Standard

2-(Chloromethoxy)-1,1,1,3,3,3-hexafluoropropane chemical structure

2-(Chloromethoxy)-1,1,1,3,3,3-hexafluoropropane

CAS: 26103-07-1
Formula: C₄H₃ClF₆O
MW: 216.51 g/mol

VQ-028016

Reference Standard

2-(Chloromethoxy)-1,1,3,3,3-pentafluoroprop-1-ene chemical structure

2-(Chloromethoxy)-1,1,3,3,3-pentafluoroprop-1-ene

CAS: 206756-25-4
Formula: C₄H₂ClF₅O
MW: 196.5 g/mol

VQ-033834

Reference Standard

2-(Chloromethyl)-3-methyl-4-nitropyridine chemical structure

2-(Chloromethyl)-3-methyl-4-nitropyridine

CAS: 116418-99-6
Formula: C₇H₇ClN₂O₂
MW: 186.59 g/mol

VQ-043204

Reference Standard

2-(Chloromethyl)-3-methylpyridine hydrochloride chemical structure

2-(Chloromethyl)-3-methylpyridine hydrochloride

CAS: 4370-22-3
Formula: C₇H₉Cl₂N
MW: 178.06 g/mol

VQ-033416

Reference Standard

2-(Chloromethyl)-3,5-dimethyl-4-nitropyridine Hydrochloride chemical structure

2-(Chloromethyl)-3,5-dimethyl-4-nitropyridine Hydrochloride

CAS: 143016-67-5
Formula: C₈H₁₀Cl₂N₂O₂
MW: 237.08 g/mol

VQ-030561

Reference Standard

2-(Chloromethyl)-3,5-dimethylpyridin-4-ol hydrochloride chemical structure

2-(Chloromethyl)-3,5-dimethylpyridin-4-ol hydrochloride

CAS: 220770-99-0
Formula: C₈H₁₁Cl₂NO
MW: 208.08 g/mol

VQ-037086

Reference Standard

2-(Chloromethyl)-4-methylquinazoline 3-oxide chemical structure

2-(Chloromethyl)-4-methylquinazoline 3-oxide

CAS: 6640-59-1
Formula: C₁₀H₉ClN₂O
MW: 208.64 g/mol

VQ-031560

Reference Standard

2-(Chloromethyl)-4,5-dihydro-1H-imidazolehydrochloride chemical structure

2-(Chloromethyl)-4,5-dihydro-1H-imidazolehydrochloride

CAS: 13338-49-3
Formula: C₄H₈Cl₂N₂
MW: 155.02 g/mol

VQ-027464

Reference Standard

2-(Chloromethyl)-5-methyl-1,3,4-oxadiazole chemical structure

2-(Chloromethyl)-5-methyl-1,3,4-oxadiazole

CAS: 3914-42-9
Formula: C₄H₅ClN₂O
MW: 132.55 g/mol

VQ-039577

Reference Standard

2-(Chloromethyl)naphthalene chemical structure

2-(Chloromethyl)naphthalene

CAS: 2506-41-4
Formula: C₁₁H₉Cl
MW: 176.64 g/mol

VQ-027141

Reference Standard

2-(Chloromethyl)quinazoline chemical structure

2-(Chloromethyl)quinazoline

CAS: 6148-18-1
Formula: C₉H₇ClN₂
MW: 178.62 g/mol

VQ-031558

Reference Standard

2-(Cyclopent-1-en-1-yl)-2-hydroxy-2-phenylacetic acid chemical structure

2-(Cyclopent-1-en-1-yl)-2-hydroxy-2-phenylacetic acid

CAS: 857353-41-4
Formula: C₁₃H₁₄O₃
MW: 218.25 g/mol

VQ-026018

Reference Standard

2-(Cyclopropylmethoxy)-acetic Acid 1,1-Dimethyl-2-[4-(methylsulfonyl)phenyl]-2-oxoethyl Ester chemical structure

2-(Cyclopropylmethoxy)-acetic Acid 1,1-Dimethyl-2-[4-(methylsulfonyl)phenyl]-2-oxoethyl Ester

CAS: 246869-15-8
Formula: C₁₇H₂₂O₆S
MW: 354.4 g/mol

VQ-025798

Reference Standard

2-(Dedimethyldeamino)deethyl Denaverine chemical structure

2-(Dedimethyldeamino)deethyl Denaverine

CAS: 2594-45-8
Formula: C₂₀H₂₄O₃
MW: 312.4 g/mol

VQ-030121

Reference Standard

2-(Di-o-tolylmethoxy)-N,N-dimethylethanamine Hydrochloride chemical structure

2-(Di-o-tolylmethoxy)-N,N-dimethylethanamine Hydrochloride

CAS: 18483-53-9
Formula: C₁₉H₂₆ClNO
MW: 319.9 g/mol

VQ-032291

Reference Standard

2-(Dibenz[b,e]oxepin-11(6H)-ylidene)acetaldehyde chemical structure

2-(Dibenz[b,e]oxepin-11(6H)-ylidene)acetaldehyde

CAS: 21324-99-2
Formula: C₁₆H₁₂O₂
MW: 236.26 g/mol

VQ-036809

Reference Standard

2-(Dibromomethyl)benzonitrile chemical structure

2-(Dibromomethyl)benzonitrile

CAS: 655-63-0
Formula: C₈H₅Br₂N
MW: 274.94 g/mol

VQ-020771

Reference Standard

2-(Dibutylamino)-1-(2,7-dichloro-9H-fluoren-4-yl)ethanol chemical structure

2-(Dibutylamino)-1-(2,7-dichloro-9H-fluoren-4-yl)ethanol

CAS: 69759-61-1
Formula: C₂₃H₂₉Cl₂NO
MW: 406.4 g/mol

VQ-023010

Reference Standard

2-(Dibutylamino)-2-[(9Z)-2,7-dichloro-9-[(4-chlorophenyl)methylidene]fluoren-4-yl]ethanol chemical structure

2-(Dibutylamino)-2-[(9Z)-2,7-dichloro-9-[(4-chlorophenyl)methylidene]fluoren-4-yl]ethanol

CAS: 1331642-68-2
Formula: C₃₀H₃₂Cl₃NO
MW: 528.9 g/mol

VQ-026534

Reference Standard

2-(Diethylamino)-N,N-diethylacetamide chemical structure

2-(Diethylamino)-N,N-diethylacetamide

CAS: 27794-54-3
Formula: C₁₀H₂₂N₂O
MW: 186.29 g/mol

VQ-037001

Reference Standard

2-(Diethylamino)ethyl 2-chloro-4-(hydroxyamino)benzoate chemical structure

2-(Diethylamino)ethyl 2-chloro-4-(hydroxyamino)benzoate

CAS: 855198-14-0
Formula: C₁₃H₁₉ClN₂O₃
MW: 286.75 g/mol

VQ-036247

Need a price, a spec or a custom compound?

Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.

Request a quote Contact sales