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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.

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-Nitrosopiperazine Palbociclib chemical structure

N-Nitrosopiperazine Palbociclib

CAS: 2955712-44-2
Formula: C₂₄H₂₈N₈O₃
MW: 476.5 g/mol

VQ-041308

Reference Standard

N-Nitrosopiperazine-d8 chemical structure

N-Nitrosopiperazine-d8

CAS: 1330180-56-7
Formula: C₄H₉N₃O
MW: 123.18 g/mol

VQ-042701

Reference Standard

N-Nitrosopiperidine chemical structure

N-Nitrosopiperidine

CAS: 100-75-4
Formula: C₅H₁₀N₂O
MW: 114.15 g/mol

In stock

Reference Standard

N-Nitrosopiperidine-d10 chemical structure

N-Nitrosopiperidine-d10

CAS: 960049-21-2
Formula: C₅H₁₀N₂O
MW: 124.21 g/mol

VQ-041145

Reference Standard

N-Nitrosopropylbutylamine chemical structure

N-Nitrosopropylbutylamine

CAS: 25413-64-3
Formula: C₇H₁₆N₂O
MW: 144.21 g/mol

VQ-045377

Reference Standard

N-Nitrosopyrrolidine chemical structure

N-Nitrosopyrrolidine

CAS: 930-55-2
Formula: C₄H₈N₂O
MW: 100.12 g/mol

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Reference Standard

N-Nitrosopyrrolidine D8 chemical structure

N-Nitrosopyrrolidine D8

CAS: 1219802-09-1
Formula: C₄H₈N₂O
MW: 108.17 g/mol

VQ-042815

Reference Standard

N-Nitrososarcosine chemical structure

N-Nitrososarcosine

CAS: 13256-22-9
Formula: C₃H₆N₂O₃
MW: 118.09 g/mol

VQ-023390

Reference Standard

N-Nitrosotaurocholic Acid chemical structure

N-Nitrosotaurocholic Acid

CAS: 82660-96-6
Formula: C₂₆H₄₄N₂O₈S
MW: 544.7 g/mol

VQ-042777

Reference Standard

N-Nitrosourea chemical structure

CAS: 13010-20-3
Formula: CH₃N₃O₂
MW: 89.05 g/mol

VQ-042759

Reference Standard

N-Octyl-N-((2S,3R,4R,5R)-2,3,4,5,6-pentahydroxyhexyl)Nitrous Amide chemical structure

N-Octyl-N-((2S,3R,4R,5R)-2,3,4,5,6-pentahydroxyhexyl)Nitrous Amide

CAS: 3079385-08-0
Formula: C₁₄H₃₀N₂O₆
MW: 322.4 g/mol

VQ-035404

Reference Standard

N-Octylpyridin-4-amine chemical structure

N-Octylpyridin-4-amine

CAS: 64690-19-3
Formula: C₁₃H₂₂N₂
MW: 206.33 g/mol

VQ-027076

Reference Standard

N-Oxide Heptyl Fingolimod Impurity

N-Oxide Heptyl Fingolimod Impurity

CAS: 2306446-32-0
Formula: C₁₈H₂₉NO₄
MW: 323.43 g/mol

In stock

Reference Standard

N-Oxide Hexyl Fingolimod Impurity

N-Oxide Hexyl Fingolimod Impurity

Formula: C₁₇H₂₇NO₄
MW: 309.4 g/mol

In stock

Reference Standard

N-Oxide Ivosidenib amide impurity

N-Oxide Ivosidenib amide impurity

CAS: 2408269-74-7
Formula: C₂₈H₂₄ClF₃N₆O₅
MW: 617 g/mol

VQ-044476

Reference Standard

N-Oxide Nonyl Fingolimod Impurity

N-Oxide Nonyl Fingolimod Impurity

CAS: 2306446-29-5
Formula: C₁₈H₂₇NO₃
MW: 305.41 g/mol

In stock

Reference Standard

N-Phenethylacetamide chemical structure

N-Phenethylacetamide

CAS: 877-95-2
Formula: C₁₀H₁₃NO
MW: 163.22 g/mol

VQ-032605

Reference Standard

N-Phenethylbenzamide chemical structure

N-Phenethylbenzamide

CAS: 3278-14-6
Formula: C₁₅H₁₅NO
MW: 225.28 g/mol

VQ-028082

Reference Standard

N-Phenethylcyclohexanecarboxamide chemical structure

N-Phenethylcyclohexanecarboxamide

CAS: 53182-00-6
Formula: C₁₅H₂₁NO
MW: 231.33 g/mol

VQ-043515

Reference Standard

N-Phenoxycarbonyl Paroxetine chemical structure

N-Phenoxycarbonyl Paroxetine

CAS: 253768-88-6
Formula: C₂₆H₂₄FNO₅
MW: 449.5 g/mol

VQ-041354

Reference Standard

N-Phenoxycarbonyl-L-valine chemical structure

N-Phenoxycarbonyl-L-valine

CAS: 126147-70-4
Formula: C₁₂H₁₅NO₄
MW: 237.25 g/mol

VQ-032696

Reference Standard

N-Phenyl-4-(trifluoromethyl)aniline chemical structure

N-Phenyl-4-(trifluoromethyl)aniline

CAS: 53451-87-9
Formula: C₁₃H₁₀F₃N
MW: 237.22 g/mol

VQ-048312

Reference Standard

N-Phenyldiethanolamine chemical structure

N-Phenyldiethanolamine

CAS: 120-07-0
Formula: C₁₀H₁₅NO₂
MW: 181.23 g/mol

VQ-032671

Reference Standard

N-Phenylglycyl Cefadroxil chemical structure

N-Phenylglycyl Cefadroxil

CAS: 147103-95-5
Formula: C₂₄H₂₄N₄O₇S
MW: 512.5 g/mol

VQ-022056

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