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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

2-Amino-6-mercaptopurine-9-D-riboside Hydrate chemical structure

2-Amino-6-mercaptopurine-9-D-riboside Hydrate

CAS: 345909-25-3
Formula: C₁₀H₁₅N₅O₅S
MW: 317.32 g/mol

VQ-032673

Reference Standard

2-Amino-6-phthalimido-4,5,6,7-tetrahydrobenzothiazole chemical structure

2-Amino-6-phthalimido-4,5,6,7-tetrahydrobenzothiazole

CAS: 104618-33-9
Formula: C₁₅H₁₃N₃O₂S
MW: 299.3 g/mol

VQ-033269

Reference Standard

2-Amino-7-cyclopentyl-N,N-dimethyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide chemical structure

2-Amino-7-cyclopentyl-N,N-dimethyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide

CAS: 1331847-17-6
Formula: C₁₄H₁₉N₅O
MW: 273.33 g/mol

VQ-027794

Reference Standard

2-Amino-7,8-dihydropteridine-4,6(3H,5H)-dione chemical structure

2-Amino-7,8-dihydropteridine-4,6(3H,5H)-dione

CAS: 1131-35-7
Formula: C₆H₇N₅O₂
MW: 181.15 g/mol

VQ-023742

Reference Standard

2-Amino-9-((1R,3R,4R)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one chemical structure

2-Amino-9-((1R,3R,4R)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one

CAS: 1354695-84-3
Formula: C₂₆H₂₇N₅O₃
MW: 457.5 g/mol

VQ-037005

Reference Standard

2-Amino-9-((1S,3R,4R)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one chemical structure

2-Amino-9-((1S,3R,4R)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one

CAS: 1354695-85-4
Formula: C₂₆H₂₇N₅O₃
MW: 457.5 g/mol

VQ-025544

Reference Standard

2-Amino-N-(2-(diethylamino)ethyl)benzamide hydrochloride chemical structure

2-Amino-N-(2-(diethylamino)ethyl)benzamide hydrochloride

CAS: 1910-63-0
Formula: C₁₃H₂₂ClN₃O
MW: 271.78 g/mol

VQ-041447

Reference Standard

2-Amino-N-(2,3-dichloro-6-methylphenyl)thiazole-5-carboxamide

2-Amino-N-(2,3-dichloro-6-methylphenyl)thiazole-5-carboxamide

CAS: 2468737-78-0
Formula: C₁₁H₉Cl₂N₃OS
MW: 302.18 g/mol

VQ-036581

Reference Standard

2-Amino-N-(2,4-dichloro-6-methylphenyl)thiazole-5-carboxamide

2-Amino-N-(2,4-dichloro-6-methylphenyl)thiazole-5-carboxamide

CAS: 2468737-77-9
Formula: C₁₁H₉Cl₂N₃OS
MW: 302.17 g/mol

VQ-030083

Reference Standard

2-Amino-N-(2,6-dioxopiperidin-3-yl)-6-methylbenzamide chemical structure

2-Amino-N-(2,6-dioxopiperidin-3-yl)-6-methylbenzamide

CAS: 1015474-80-2
Formula: C₁₃H₁₅N₃O₃
MW: 261.28 g/mol

VQ-044506

Reference Standard

2-Amino-N-(3-(5-(2-aminopyrimidin-4-yl)-2-(tert-butyl)thiazol-4-yl)-2-fluorophenyl)-6-fluorobenzenesulfonamide chemical structure

2-Amino-N-(3-(5-(2-aminopyrimidin-4-yl)-2-(tert-butyl)thiazol-4-yl)-2-fluorophenyl)-6-fluorobenzenesulfonamide

CAS: 2017554-98-0
Formula: C₂₃H₂₂F₂N₆O₂S₂
MW: 516.6 g/mol

VQ-022294

Reference Standard

2-Amino-N-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-2-oxoacetohydrazonoyl cyanide chemical structure

2-Amino-N-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-2-oxoacetohydrazonoyl cyanide

CAS: 2987937-25-5
Formula: C₁₆H₁₄Cl₂N₆O₃
MW: 409.2 g/mol

VQ-027781

Reference Standard

2-Amino-N-(3,6-dichloro-2-methylphenyl)thiazole-5-carboxamide chemical structure

2-Amino-N-(3,6-dichloro-2-methylphenyl)thiazole-5-carboxamide

CAS: 2468737-79-1
Formula: C₁₁H₉Cl₂N₃OS
MW: 302.2 g/mol

VQ-036580

Reference Standard

2-Amino-N-(o-tolyl)thiazole-5-carboxamide chemical structure

2-Amino-N-(o-tolyl)thiazole-5-carboxamide

CAS: 1184914-03-1
Formula: C₁₁H₁₁N₃OS
MW: 233.29 g/mol

VQ-036578

Reference Standard

2-Amino-N-[2-(2-chlorobenzoyl)-4-nitrophenyl]acetamide chemical structure

2-Amino-N-[2-(2-chlorobenzoyl)-4-nitrophenyl]acetamide

CAS: 17714-02-2
Formula: C₁₅H₁₂ClN₃O₄
MW: 333.72 g/mol

VQ-044831

Reference Standard

2-Amino-N1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)malonamide

2-Amino-N1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)malonamide

CAS: 110770-95-1
Formula: C₈H₁₅N₃O₆
MW: 249.22 g/mol

VQ-038467

Reference Standard

2-Amino-β-methyl-9H-purine-9-butanol 9-Acetate chemical structure

2-Amino-β-methyl-9H-purine-9-butanol 9-Acetate

CAS: 174155-70-5
Formula: C₁₂H₁₇N₅O₂
MW: 263.3 g/mol

VQ-030664

Reference Standard

2-Aminoadamantane chemical structure

2-Aminoadamantane

CAS: 13074-39-0
Formula: C₁₀H₁₇N
MW: 151.25 g/mol

VQ-045270

Reference Standard

2-Aminoadenosine chemical structure

2-Aminoadenosine

CAS: 2096-10-8
Formula: C₁₀H₁₄N₆O₄
MW: 282.26 g/mol

VQ-028869

Reference Standard

2-Aminobenzenesulfonic acid chemical structure

2-Aminobenzenesulfonic acid

CAS: 88-21-1
Formula: C₆H₇NO₃S
MW: 173.19 g/mol

VQ-031794

Reference Standard

2-Aminobenzotrifluoride chemical structure

2-Aminobenzotrifluoride

CAS: 88-17-5
Formula: C₇H₆F₃N
MW: 161.12 g/mol

VQ-026388

Reference Standard

2-Aminobiphenyl chemical structure

2-Aminobiphenyl

CAS: 90-41-5
Formula: C₁₂H₁₁N
MW: 169.22 g/mol

VQ-033516

Reference Standard

2-Aminobutanamide hydrochloride chemical structure

2-Aminobutanamide hydrochloride

CAS: 89603-48-5
Formula: C₄H₁₁ClN₂O
MW: 138.59 g/mol

VQ-037974

Reference Standard

2-Aminodiphenyl Sulfide Hydrochloride chemical structure

2-Aminodiphenyl Sulfide Hydrochloride

CAS: 6764-13-2
Formula: C₁₂H₁₂ClNS
MW: 237.75 g/mol

VQ-027692

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