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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

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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-5-(4-hydroxy-3,5- dimethoxybenzyl)pyrimidin-4-ol chemical structure

2-Amino-5-(4-hydroxy-3,5- dimethoxybenzyl)pyrimidin-4-ol

CAS: 72920-13-9
Formula: C₁₃H₁₅N₃O₄
MW: 277.28 g/mol

VQ-034442

Reference Standard

2-Amino-5-(dimethylamino)benzenesulfonothioic acid

2-Amino-5-(dimethylamino)benzenesulfonothioic acid

CAS: 65517-31-9
Formula: C₈H₁₂N₂O₂S₂
MW: 232.32 g/mol

VQ-044470

Reference Standard

2-Amino-5-(trifluoromethoxy)phenyl Thiocyanate chemical structure

2-Amino-5-(trifluoromethoxy)phenyl Thiocyanate

CAS: 1391054-04-8
Formula: C₈H₅F₃N₂OS
MW: 234.2 g/mol

VQ-027823

Reference Standard

2-Amino-5-chloro-2'-fluorobenzophenone chemical structure

2-Amino-5-chloro-2'-fluorobenzophenone

CAS: 784-38-3
Formula: C₁₃H₉ClFNO
MW: 249.67 g/mol

VQ-027273

Reference Standard

2-Amino-5-chloro-N,3-dimethylbenzamide chemical structure

2-Amino-5-chloro-N,3-dimethylbenzamide

CAS: 890707-28-5
Formula: C₉H₁₁ClN₂O
MW: 198.65 g/mol

VQ-035308

Reference Standard

2-Amino-5-chlorobenzene sulfonic acid chemical structure

2-Amino-5-chlorobenzene sulfonic acid

CAS: 133-74-4
Formula: C₆H₆ClNO₃S
MW: 207.64 g/mol

VQ-023410

Reference Standard

2-Amino-5-hydroxypyridine chemical structure

2-Amino-5-hydroxypyridine

CAS: 55717-46-9
Formula: C₅H₆N₂O
MW: 110.11 g/mol

VQ-040979

Reference Standard

2-Amino-5-Methyl-3-Thiophenecarbonitrile chemical structure

2-Amino-5-Methyl-3-Thiophenecarbonitrile

CAS: 138564-58-6
Formula: C₆H₆N₂S
MW: 138.19 g/mol

VQ-023319

Reference Standard

2-Amino-5-nitro-2-chlorobenzophenone chemical structure

2-Amino-5-nitro-2-chlorobenzophenone

CAS: 2011-66-7
Formula: C₁₃H₉ClN₂O₃
MW: 276.67 g/mol

VQ-044834

Reference Standard

2-Amino-5-nitrobenzonitrile chemical structure

2-Amino-5-nitrobenzonitrile

CAS: 17420-30-3
Formula: C₇H₅N₃O₂
MW: 163.13 g/mol

VQ-044469

Reference Standard

2-Amino-5-nitroso-4,6-pyrimidinediol chemical structure

2-Amino-5-nitroso-4,6-pyrimidinediol

CAS: 55482-22-9
Formula: C₄H₄N₄O₃
MW: 156.1 g/mol

VQ-035713

Reference Standard

2-Amino-5,6-Dichloro-3,4-Dihydroquinazoline chemical structure

2-Amino-5,6-Dichloro-3,4-Dihydroquinazoline

CAS: 444904-63-6
Formula: C₈H₇Cl₂N₃
MW: 216.06 g/mol

VQ-029162

Reference Standard

2-Amino-5,6-dichloro-3(4H)-quinazoline Acetic Acid Ethyl Ester Hydrobromide chemical structure

2-Amino-5,6-dichloro-3(4H)-quinazoline Acetic Acid Ethyl Ester Hydrobromide

CAS: 70381-75-8
Formula: C₁₂H₁₄BrCl₂N₃O₂
MW: 383.07 g/mol

VQ-021591

Reference Standard

2-Amino-5,6-dichloro-3(4H)-quinazoline Acetic Acid Hydrobromide chemical structure

2-Amino-5,6-dichloro-3(4H)-quinazoline Acetic Acid Hydrobromide

CAS: 1194434-39-3
Formula: C₁₀H₁₀BrCl₂N₃O₂
MW: 355.01 g/mol

VQ-024294

Reference Standard

2-Amino-5,6-dichloro-3(4H)-quinazolineacetic Acid Methyl Ester Monohydrobromide chemical structure

2-Amino-5,6-dichloro-3(4H)-quinazolineacetic Acid Methyl Ester Monohydrobromide

CAS: 70380-52-8
Formula: C₁₁H₁₂BrCl₂N₃O₂
MW: 369.04 g/mol

VQ-034995

Reference Standard

2-Amino-6-((1-amino-4-carboxy-1-oxobutan-2-yl)carbamoyl)benzoic Acid chemical structure

2-Amino-6-((1-amino-4-carboxy-1-oxobutan-2-yl)carbamoyl)benzoic Acid

CAS: 1795373-41-9
Formula: C₁₃H₁₅N₃O₆
MW: 309.27 g/mol

VQ-043262

Reference Standard

2-Amino-6-(1-methyl-1H-1,2,4-triazol-3-yl)-phenol chemical structure

2-Amino-6-(1-methyl-1H-1,2,4-triazol-3-yl)-phenol

CAS: 3026065-02-8
Formula: C₉H₁₀N₄O
MW: 190.2 g/mol

VQ-036645

Reference Standard

2-Amino-6-(4-nitrophenyl)-1-phenylhex-5-yn-1-ol hydrochloride, (1R,2R) chemical structure

2-Amino-6-(4-nitrophenyl)-1-phenylhex-5-yn-1-ol hydrochloride, (1R,2R)

CAS: 1628836-08-7
Formula: C₁₈H₁₉ClN₂O₃
MW: 346.8 g/mol

VQ-034596

Reference Standard

2-Amino-6-(chloromethyl)pteridin-4(3H)-one chemical structure

2-Amino-6-(chloromethyl)pteridin-4(3H)-one

CAS: 873397-19-4
Formula: C₇H₆ClN₅O
MW: 211.61 g/mol

VQ-049069

Reference Standard

2-Amino-6-(hydroxymethyl)pteridin-4(1H)-one chemical structure

2-Amino-6-(hydroxymethyl)pteridin-4(1H)-one

CAS: 712-29-8
Formula: C₇H₇N₅O₂
MW: 193.16 g/mol

VQ-031824

Reference Standard

2-Amino-6-chloro-9-(2,3,5-tri-O-acetyl-beta-D-ribofuranosyl)purine chemical structure

2-Amino-6-chloro-9-(2,3,5-tri-O-acetyl-beta-D-ribofuranosyl)purine

CAS: 16321-99-6
Formula: C₁₆H₁₈ClN₅O₇
MW: 427.8 g/mol

VQ-039087

Reference Standard

2-Amino-6-chloro-phenol chemical structure

2-Amino-6-chloro-phenol

CAS: 38191-33-2
Formula: C₆H₆ClNO
MW: 143.57 g/mol

VQ-036276

Reference Standard

2-Amino-6-chloropyridine chemical structure

2-Amino-6-chloropyridine

CAS: 45644-21-1
Formula: C₅H₅ClN₂
MW: 128.56 g/mol

VQ-032461

Reference Standard

2-Amino-6-fluoro-N-phenylbenzamide chemical structure

2-Amino-6-fluoro-N-phenylbenzamide

CAS: 1417456-04-2
Formula: C₁₃H₁₁FN₂O
MW: 230.24 g/mol

VQ-031155

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