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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

(R,R)-Diltiazem chemical structure

(R,R)-Diltiazem

CAS: 75472-92-3
Formula: C₂₂H₂₆N₂O₄S
MW: 414.5 g/mol

VQ-044664

Reference Standard

(R,R)-Eluxadoline chemical structure

(R,R)-Eluxadoline

CAS: 1052250-94-8
Formula: C₃₂H₃₅N₅O₅
MW: 569.6 g/mol

VQ-035325

Reference Standard

(R,R)-Empagliflozin Impurity chemical structure

(R,R)-Empagliflozin Impurity

CAS: 2452301-42-5
Formula: C₂₃H₂₇ClO₇
MW: 450.9 g/mol

VQ-030451

Reference Standard

(R,R)-Epoxy Leucine Carfilzomib chemical structure

(R,R)-Epoxy Leucine Carfilzomib

CAS: 2049025-76-3
Formula: C₄₀H₅₇N₅O₇
MW: 719.9 g/mol

VQ-022011

Reference Standard

(R,R)-Hydroxy Bupropion chemical structure

(R,R)-Hydroxy Bupropion

CAS: 192374-15-5
Formula: C₁₃H₁₈ClNO₂
MW: 255.74 g/mol

VQ-021026

Reference Standard

(R,R)-Labetalol chemical structure

(R,R)-Labetalol

CAS: 75659-07-3
Formula: C₁₉H₂₄N₂O₃
MW: 328.4 g/mol

VQ-028832

Reference Standard

(R,R)-N-(1-Phenylethyl) Ibuprofen Amide chemical structure

(R,R)-N-(1-Phenylethyl) Ibuprofen Amide

CAS: 121734-80-3
Formula: C₂₁H₂₇NO
MW: 309.4 g/mol

VQ-044163

Reference Standard

(R,R)-Pitavastatin chemical structure

(R,R)-Pitavastatin

CAS: 769908-13-6
Formula: C₂₅H₂₄FNO₄
MW: 421.5 g/mol

VQ-033234

Reference Standard

(R,R)Barnidipine Enantiomer chemical structure

(R,R)Barnidipine Enantiomer

CAS: 104713-78-2
Formula: C₂₇H₂₉N₃O₆
MW: 491.5 g/mol

VQ-024098

Reference Standard

(R,S,R,S)-Nebivolol chemical structure

(R,S,R,S)-Nebivolol

CAS: 119365-24-1
Formula: C₂₂H₂₅F₂NO₄
MW: 405.4 g/mol

VQ-032082

Reference Standard

(R,S,R) Edoxaban 4-Methylbenzenesulfonate chemical structure

(R,S,R) Edoxaban 4-Methylbenzenesulfonate

CAS: 2605225-75-8
Formula: C₃₁H₃₈ClN₇O₇S₂
MW: 720.3 g/mol

VQ-036886

Reference Standard

(R,S,S,S)-Defluoro Nebivolol Hydrochloride

(R,S,S,S)-Defluoro Nebivolol Hydrochloride

CAS: 1696430-22-4
Formula: C₁₂H₁₇NO₂
MW: 207.3 g/mol

VQ-049200

Reference Standard

(R,S,S,S)-Nebivolol Hydrochloride chemical structure

(R,S,S,S)-Nebivolol Hydrochloride

CAS: 920299-33-8
Formula: C₂₂H₂₆ClF₂NO₄
MW: 441.9 g/mol

VQ-032083

Reference Standard

(R,S,S,S)-Orlistat chemical structure

(R,S,S,S)-Orlistat

CAS: 104872-28-8
Formula: C₂₉H₅₃NO₅
MW: 495.7 g/mol

VQ-027037

Reference Standard

(R,S)-2-Hydroxy-5-[1-hydroxy-2-[(1-methyl-3-phenylpropyl)amino]ethyl]benzamide monohydrochloride chemical structure

(R,S)-2-Hydroxy-5-[1-hydroxy-2-[(1-methyl-3-phenylpropyl)amino]ethyl]benzamide monohydrochloride

CAS: 72487-35-5
Formula: C₁₉H₂₅ClN₂O₃
MW: 364.9 g/mol

VQ-048767

Reference Standard

(R,S)-Anatabine chemical structure

(R,S)-Anatabine

CAS: 2743-90-0
Formula: C₁₀H₁₂N₂
MW: 160.22 g/mol

VQ-032137

Reference Standard

(R,S)-Labetalol chemical structure

(R,S)-Labetalol

CAS: 83167-31-1
Formula: C₁₉H₂₄N₂O₃
MW: 328.4 g/mol

VQ-026327

Reference Standard

(R,S)-N-(1-Phenylethyl) Ibuprofen Amide chemical structure

(R,S)-N-(1-Phenylethyl) Ibuprofen Amide

CAS: 121734-79-0
Formula: C₂₁H₂₇NO
MW: 309.4 g/mol

VQ-026117

Reference Standard

(R,S)-N-Nitroso Anabasine chemical structure

(R,S)-N-Nitroso Anabasine

CAS: 37620-20-5
Formula: C₁₀H₁₃N₃O
MW: 191.23 g/mol

VQ-026895

Reference Standard

(R,S)-N-Nitroso Anabasine D4 chemical structure

(R,S)-N-Nitroso Anabasine D4

CAS: 1020719-68-9
Formula: C₁₀H₁₃N₃O
MW: 195.25 g/mol

VQ-038621

Reference Standard

(R,S)-N-Nitroso Anatabine chemical structure

(R,S)-N-Nitroso Anatabine

CAS: 887407-16-1
Formula: C₁₀H₁₁N₃O
MW: 189.21 g/mol

VQ-038616

Reference Standard

(R,S)-N-Nitroso Anatabine-2,4,5,6-d4 chemical structure

(R,S)-N-Nitroso Anatabine-2,4,5,6-d4

CAS: 1020719-69-0
Formula: C₁₀H₁₁N₃O
MW: 193.24 g/mol

VQ-038620

Reference Standard

(R,S)-Nornicotine chemical structure

(R,S)-Nornicotine

CAS: 5746-86-1
Formula: C₉H₁₂N₂
MW: 148.2 g/mol

VQ-032139

Reference Standard

(R,S)(S,R)-Benidipine Hydrochloride chemical structure

(R,S)(S,R)-Benidipine Hydrochloride

CAS: 91599-76-7
Formula: C₂₈H₃₂ClN₃O₆
MW: 542 g/mol

VQ-029386

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