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.

28,554products

6sub-categories

2,746in stock

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

N-Methyl-2-(pyridin-2-yl)prop-2-en-1-amine

N-Methyl-2-(pyridin-2-yl)prop-2-en-1-amine

CAS: 1894608-21-9
Formula: C₉H₁₂N₂
MW: 148.2 g/mol

VQ-028964

Reference Standard

N-Methyl-2-[[3-[(1E)-2-(1-oxido-2-pyridinyl)ethenyl]-1H-indazol-6-yl]sulfinyl]-benzamide chemical structure

N-Methyl-2-[[3-[(1E)-2-(1-oxido-2-pyridinyl)ethenyl]-1H-indazol-6-yl]sulfinyl]-benzamide

CAS: 1348044-24-5
Formula: C₂₂H₁₈N₄O₃S
MW: 418.5 g/mol

VQ-029312

Reference Standard

N-Methyl-2-[3-(1-methylpiperidin-4-yl)-1H-indol-5-yl]ethene-1-sulfonamide chemical structure

N-Methyl-2-[3-(1-methylpiperidin-4-yl)-1H-indol-5-yl]ethene-1-sulfonamide

CAS: 121679-24-1
Formula: C₁₇H₂₃N₃O₂S
MW: 333.5 g/mol

VQ-043615

Reference Standard

N-Methyl-2-amino-4-nitroaniline chemical structure

N-Methyl-2-amino-4-nitroaniline

CAS: 41939-61-1
Formula: C₇H₉N₃O₂
MW: 167.17 g/mol

VQ-047546

Reference Standard

N-Methyl-3-(methylnitrosoamino)-propionamide chemical structure

N-Methyl-3-(methylnitrosoamino)-propionamide

CAS: 89614-31-3
Formula: C₅H₁₁N₃O₂
MW: 145.16 g/mol

VQ-050528

Reference Standard

N-Methyl-3-(naphthalen-1-yloxy)-3-(thiophen-2-yl)propan-1-amine oxalate chemical structure

N-Methyl-3-(naphthalen-1-yloxy)-3-(thiophen-2-yl)propan-1-amine oxalate

CAS: 116817-14-2
Formula: C₂₀H₂₁NO₅S
MW: 387.5 g/mol

VQ-043953

Reference Standard

N-Methyl-3-phenyl-3-(2-(trifluoromethyl)phenoxy)propan-1-amine Hydrochloride chemical structure

N-Methyl-3-phenyl-3-(2-(trifluoromethyl)phenoxy)propan-1-amine Hydrochloride

CAS: 2243504-22-3
Formula: C₁₇H₁₉ClF₃NO
MW: 345.8 g/mol

VQ-030810

Reference Standard

N-Methyl-3-phenyl-3-(m-tolyloxy)propan-1-amine Hydrochloride chemical structure

N-Methyl-3-phenyl-3-(m-tolyloxy)propan-1-amine Hydrochloride

CAS: 873310-28-2
Formula: C₁₇H₂₂ClNO
MW: 291.8 g/mol

VQ-029248

Reference Standard

N-Methyl-3-phenyl-3-(p-tolyloxy)propan-1-amine Hydrochloride chemical structure

N-Methyl-3-phenyl-3-(p-tolyloxy)propan-1-amine Hydrochloride

CAS: 873310-31-7
Formula: C₁₇H₂₂ClNO
MW: 291.8 g/mol

VQ-021652

Reference Standard

N-Methyl-3-pyrrolidinol chemical structure

N-Methyl-3-pyrrolidinol

CAS: 13220-33-2
Formula: C₅H₁₁NO
MW: 101.15 g/mol

VQ-032450

Reference Standard

N-Methyl-3,3-diphenylpropanamide chemical structure

N-Methyl-3,3-diphenylpropanamide

CAS: 348607-76-1
Formula: C₁₆H₁₇NO
MW: 239.31 g/mol

VQ-031492

Reference Standard

N-Methyl-3,3-diphenylpropylamine chemical structure

N-Methyl-3,3-diphenylpropylamine

CAS: 28075-29-8
Formula: C₁₆H₁₉N
MW: 225.33 g/mol

VQ-031488

Reference Standard

N-Methyl-4-(4-((2-(methylcarbamoyl)pyridin-4-yl)amino)phenoxy)picolinamide chemical structure

N-Methyl-4-(4-((2-(methylcarbamoyl)pyridin-4-yl)amino)phenoxy)picolinamide

CAS: 2004659-83-8
Formula: C₂₀H₁₉N₅O₃
MW: 377.4 g/mol

VQ-043531

Reference Standard

N-Methyl-4-(4-ureidophenoxy)picolinamide chemical structure

N-Methyl-4-(4-ureidophenoxy)picolinamide

CAS: 1129683-88-0
Formula: C₁₄H₁₄N₄O₃
MW: 286.29 g/mol

VQ-035239

Reference Standard

N-methyl-4-(5-nitroindolin-1-yl)picolinamide

N-methyl-4-(5-nitroindolin-1-yl)picolinamide

Formula: C₁₅H₁₄N₄O₃
MW: 298.3 g/mol

VQ-006867

Reference Standard

N-Methyl-4-(methylamino)picolinamide chemical structure

N-Methyl-4-(methylamino)picolinamide

CAS: 1065074-98-7
Formula: C₈H₁₁N₃O
MW: 165.19 g/mol

VQ-042237

Reference Standard

N-Methyl-4-nitro-benzamide chemical structure

N-Methyl-4-nitro-benzamide

CAS: 2585-23-1
Formula: C₈H₈N₂O₃
MW: 180.16 g/mol

VQ-040206

Reference Standard

N-Methyl-4-nitro-N-nitrosoaniline chemical structure

N-Methyl-4-nitro-N-nitrosoaniline

CAS: 943-41-9
Formula: C₇H₇N₃O₃
MW: 181.15 g/mol

VQ-028971

Reference Standard

N-Methyl-4-nitrosobenzenamine chemical structure

N-Methyl-4-nitrosobenzenamine

CAS: 10595-51-4
Formula: C₇H₈N₂O
MW: 136.15 g/mol

VQ-032915

Reference Standard

N-Methyl-4-nitrosopiperazine chemical structure

N-Methyl-4-nitrosopiperazine

CAS: 16339-07-4
Formula: C₅H₁₁N₃O
MW: 129.16 g/mol

In stock

Reference Standard

N-Methyl-4-phenylbutan-2-amine chemical structure

N-Methyl-4-phenylbutan-2-amine

CAS: 63957-19-7
Formula: C₁₁H₁₇N
MW: 163.26 g/mol

VQ-039754

Reference Standard

N-Methyl-5,6-dihydroxyindole chemical structure

N-Methyl-5,6-dihydroxyindole

CAS: 4821-00-5
Formula: C₉H₉NO₂
MW: 163.17 g/mol

VQ-035619

Reference Standard

N-Methyl-6-(4-methylpiperazin-1-yl)-4-(o-tolyl)pyridin-3-amine chemical structure

N-Methyl-6-(4-methylpiperazin-1-yl)-4-(o-tolyl)pyridin-3-amine

CAS: 290297-25-5
Formula: C₁₈H₂₄N₄
MW: 296.4 g/mol

VQ-049218

Reference Standard

N-Methyl-d3-o-phenylenediamine chemical structure

N-Methyl-d3-o-phenylenediamine

CAS: 1246820-22-3
Formula: C₇H₁₀N₂
MW: 125.19 g/mol

VQ-043370

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