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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.

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COA + SDSwith every lot

API Impurities 14,252 Pharmacopeial Impurities (EP / USP / BP) 4,401 Nitrosamine Impurities 650 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612 Metabolites & Degradation Products 4,146 API Reference Standards 3,493

Reference Standard

4-Amino-2,6-bis(pyrrolidin-1-ylmethyl)phenol chemical structure

4-Amino-2,6-bis(pyrrolidin-1-ylmethyl)phenol

CAS: 85236-51-7
Formula: C₁₆H₂₅N₃O
MW: 275.39 g/mol

VQ-033395

Reference Standard

4-Amino-2,6-Dichlorophenol chemical structure

4-Amino-2,6-Dichlorophenol

CAS: 5930-28-9
Formula: C₆H₅Cl₂NO
MW: 178.01 g/mol

VQ-033507

Reference Standard

4-Amino-2'-(2,6-dioxopiperidin-3-yl)-[2,4'-biisoindoline]-1,1',3,3'-tetraone chemical structure

4-Amino-2'-(2,6-dioxopiperidin-3-yl)-[2,4'-biisoindoline]-1,1',3,3'-tetraone

CAS: 1795373-54-4
Formula: C₂₁H₁₄N₄O₆
MW: 418.4 g/mol

VQ-027555

Reference Standard

4-Amino-3-((4-carboxyphenyl)diazenyl)benzoic Acid chemical structure

4-Amino-3-((4-carboxyphenyl)diazenyl)benzoic Acid

CAS: 1914179-49-9
Formula: C₁₄H₁₁N₃O₄
MW: 285.25 g/mol

VQ-025229

Reference Standard

4-Amino-3-(2-chlorophenyl)butanoic Acid chemical structure

4-Amino-3-(2-chlorophenyl)butanoic Acid

CAS: 28311-34-4
Formula: C₁₀H₁₂ClNO₂
MW: 213.66 g/mol

VQ-047522

Reference Standard

4-Amino-3-(3-chlorophenyl)butanoic Acid chemical structure

4-Amino-3-(3-chlorophenyl)butanoic Acid

CAS: 69856-22-0
Formula: C₁₀H₁₂ClNO₂
MW: 213.66 g/mol

VQ-047521

Reference Standard

4-Amino-3-(triflouromethyl) Benzonitrile chemical structure

4-Amino-3-(triflouromethyl) Benzonitrile

CAS: 327-74-2
Formula: C₈H₅F₃N₂
MW: 186.13 g/mol

VQ-021826

Reference Standard

4-Amino-3-(trifluoromethyl)picolinonitrile chemical structure

4-Amino-3-(trifluoromethyl)picolinonitrile

CAS: 1805601-57-3
Formula: C₇H₄F₃N₃
MW: 187.12 g/mol

VQ-039462

Reference Standard

4-Amino-3-chloro-5-methyl-benzenesulfonic acid chemical structure

4-Amino-3-chloro-5-methyl-benzenesulfonic acid

CAS: 6387-14-0
Formula: C₇H₈ClNO₃S
MW: 221.66 g/mol

VQ-036577

Reference Standard

4-Amino-3-chloro-5-methylphenol chemical structure

4-Amino-3-chloro-5-methylphenol

CAS: 873417-25-5
Formula: C₇H₈ClNO
MW: 157.6 g/mol

VQ-048833

Reference Standard

4-Amino-3-chloro-N-(2-(diethylamino)ethyl)-2-methoxybenzamide chemical structure

4-Amino-3-chloro-N-(2-(diethylamino)ethyl)-2-methoxybenzamide

CAS: 58590-44-6
Formula: C₁₄H₂₂ClN₃O₂
MW: 299.79 g/mol

VQ-035367

Reference Standard

4-Amino-3-Chloroacetophenone chemical structure

4-Amino-3-Chloroacetophenone

CAS: 6953-83-9
Formula: C₈H₈ClNO
MW: 169.61 g/mol

VQ-041113

Reference Standard

4-Amino-3-chloropyridine chemical structure

4-Amino-3-chloropyridine

CAS: 19798-77-7
Formula: C₅H₅ClN₂
MW: 128.56 g/mol

VQ-033631

Reference Standard

4-Amino-3-Hydroxypyridine Sulfate chemical structure

4-Amino-3-Hydroxypyridine Sulfate

CAS: 100130-15-2
Formula: C₅H₆N₂O₄S
MW: 190.18 g/mol

VQ-036511

Reference Standard

4-Amino-3-methoxybenzonitrile chemical structure

4-Amino-3-methoxybenzonitrile

CAS: 177476-76-5
Formula: C₈H₈N₂O
MW: 148.16 g/mol

VQ-047433

Reference Standard

4-Amino-3-methyl benzoic acid chemical structure

4-Amino-3-methyl benzoic acid

CAS: 2486-70-6
Formula: C₈H₉NO₂
MW: 151.16 g/mol

VQ-040257

Reference Standard

4-Amino-3-methyl-5-nitrobenzoic acid chemical structure

4-Amino-3-methyl-5-nitrobenzoic acid

CAS: 37901-94-3
Formula: C₈H₈N₂O₄
MW: 196.16 g/mol

VQ-042398

Reference Standard

4-Amino-3-nitrobenzophenone chemical structure

4-Amino-3-nitrobenzophenone

CAS: 31431-19-3
Formula: C₁₃H₁₀N₂O₃
MW: 242.23 g/mol

VQ-039168

Reference Standard

4-Amino-3-nitrophenol chemical structure

4-Amino-3-nitrophenol

CAS: 610-81-1
Formula: C₆H₆N₂O₃
MW: 154.12 g/mol

VQ-032325

Reference Standard

4-Amino-3-nitropyridine chemical structure

4-Amino-3-nitropyridine

CAS: 1681-37-4
Formula: C₅H₅N₃O₂
MW: 139.11 g/mol

VQ-024235

Reference Standard

4-Amino-3-phenyl-butyric acid chemical structure

4-Amino-3-phenyl-butyric acid

CAS: 1078-21-3
Formula: C₁₀H₁₃NO₂
MW: 179.22 g/mol

VQ-035221

Reference Standard

4-Amino-3,5-bis(4-pyridyl)-1,2,4-triazole chemical structure

4-Amino-3,5-bis(4-pyridyl)-1,2,4-triazole

CAS: 38634-05-8
Formula: C₁₂H₁₀N₆
MW: 238.25 g/mol

VQ-022856

Reference Standard

4-Amino-3,5-dibromopyridine chemical structure

4-Amino-3,5-dibromopyridine

CAS: 84539-34-4
Formula: C₅H₄Br₂N₂
MW: 251.91 g/mol

VQ-025159

Reference Standard

4-Amino-3.4-dideoxy-2-C-(hydroxymethyl)-D-epi-inositol chemical structure

4-Amino-3.4-dideoxy-2-C-(hydroxymethyl)-D-epi-inositol

CAS: 83465-22-9
Formula: C₇H₁₅NO₅
MW: 193.2 g/mol

VQ-034674

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