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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)-N-Benzyl-1-(1-naphthyl)ethylamine chemical structure

(R)-N-Benzyl-1-(1-naphthyl)ethylamine

CAS: 66469-40-7
Formula: C₁₉H₁₉N
MW: 261.4 g/mol

VQ-022185

Reference Standard

(R)-N-Benzyl-1-(4-methoxyphenyl)propan-2-amine chemical structure

(R)-N-Benzyl-1-(4-methoxyphenyl)propan-2-amine

CAS: 67346-60-5
Formula: C₁₇H₂₁NO
MW: 255.35 g/mol

VQ-047439

Reference Standard

(R)-N-Desmethyl Selegiline Hydrochloride chemical structure

(R)-N-Desmethyl Selegiline Hydrochloride

CAS: 115586-38-4
Formula: C₁₂H₁₆ClN
MW: 209.71 g/mol

VQ-042128

Reference Standard

(R)-N-Despropyl Pramipexole chemical structure

(R)-N-Despropyl Pramipexole

CAS: 106092-11-9
Formula: C₇H₁₁N₃S
MW: 169.25 g/mol

VQ-041581

Reference Standard

(R)-N-Formyl Octabase chemical structure

(R)-N-Formyl Octabase

CAS: 51773-23-0
Formula: C₁₈H₂₃NO₂
MW: 285.4 g/mol

VQ-030160

Reference Standard

(R)-N-Methyl-1-(Naphthalen-1-yl)ethanamine chemical structure

(R)-N-Methyl-1-(Naphthalen-1-yl)ethanamine

CAS: 15297-33-3
Formula: C₁₃H₁₅N
MW: 185.26 g/mol

VQ-036315

Reference Standard

(R)-N-Methyl-Laudanosine chemical structure

(R)-N-Methyl-Laudanosine

CAS: 732929-47-4
Formula: C₂₂H₃₀NO₄⁺
MW: 372.5 g/mol

VQ-029271

Reference Standard

(R)-N-Methyl-Laudanosine Iodide chemical structure

(R)-N-Methyl-Laudanosine Iodide

CAS: 41431-32-7
Formula: C₂₂H₃₀INO₄
MW: 499.4 g/mol

VQ-029270

Reference Standard

(R)-O-Desmethyl Rabeprazole Impurity chemical structure

(R)-O-Desmethyl Rabeprazole Impurity

CAS: 179952-04-6
Formula: C₁₇H₁₉N₃O₃S
MW: 345.4 g/mol

VQ-033420

Reference Standard

(R)-Ofloxacin chemical structure

CAS: 100986-86-5
Formula: C₁₈H₂₀FN₃O₄
MW: 361.4 g/mol

VQ-022969

Reference Standard

(R)-Ofloxacin Carboxylic Acid (Dextrofloxacin Difluoro Impurity) chemical structure

(R)-Ofloxacin Carboxylic Acid (Dextrofloxacin Difluoro Impurity)

CAS: 110548-07-7
Formula: C₁₃H₉F₂NO₄
MW: 281.21 g/mol

VQ-031528

Reference Standard

(R)-Omeprazole chemical structure

CAS: 119141-89-8
Formula: C₁₇H₁₉N₃O₃S
MW: 345.4 g/mol

VQ-030559

Reference Standard

(R)-Pantoic Acid Sodium Salt chemical structure

(R)-Pantoic Acid Sodium Salt

CAS: 60979-68-2
Formula: C₆H₁₁NaO₄
MW: 170.14 g/mol

VQ-022352

Reference Standard

(R)-Phenylephrine 3-O-Sulfate chemical structure

(R)-Phenylephrine 3-O-Sulfate

CAS: 1242184-39-9
Formula: C₉H₁₃NO₅S
MW: 247.27 g/mol

VQ-042037

Reference Standard

(R)-Pirtobrutinib chemical structure

(R)-Pirtobrutinib

CAS: 2101700-14-3
Formula: C₂₂H₂₁F₄N₅O₃
MW: 479.4 g/mol

VQ-033222

Reference Standard

(R)-Pomalidomide chemical structure

(R)-Pomalidomide

CAS: 202271-90-7
Formula: C₁₃H₁₁N₃O₄
MW: 273.24 g/mol

VQ-027553

Reference Standard

(R)-Praziquantel chemical structure

(R)-Praziquantel

CAS: 57452-98-9
Formula: C₁₉H₂₄N₂O₂
MW: 312.4 g/mol

VQ-033289

Reference Standard

(R)-Praziquantel D11 chemical structure

(R)-Praziquantel D11

CAS: 1399880-38-6
Formula: C₁₉H₂₄N₂O₂
MW: 323.5 g/mol

VQ-041611

Reference Standard

(R)-Pregabalin EP Impurity D chemical structure

(R)-Pregabalin EP Impurity D

CAS: 89015-27-0
Formula: C₁₁H₁₄O₃
MW: 194.23 g/mol

VQ-041650

Reference Standard

(R)-Propafenone chemical structure

(R)-Propafenone

CAS: 107381-31-7
Formula: C₂₁H₂₇NO₃
MW: 341.4 g/mol

VQ-041713

Reference Standard

(R)-Propranolol-D7 Hydrochloride chemical structure

(R)-Propranolol-D7 Hydrochloride

CAS: 1346617-25-1
Formula: C₁₆H₂₂ClNO₂
MW: 302.85 g/mol

VQ-041746

Reference Standard

(R)-Pyrrolidine-2-carbonitrile Hydrochloride chemical structure

(R)-Pyrrolidine-2-carbonitrile Hydrochloride

CAS: 675602-84-3
Formula: C₅H₉ClN₂
MW: 132.59 g/mol

VQ-039094

Reference Standard

(R)-Quinuclidinyl Benzoyl Solifenacin chemical structure

(R)-Quinuclidinyl Benzoyl Solifenacin

CAS: 1956436-64-8
Formula: C₂₃H₂₆N₂O₃
MW: 378.5 g/mol

VQ-028079

Reference Standard

(R)-Ramelteon chemical structure

CAS: 196597-27-0
Formula: C₁₆H₂₁NO₂
MW: 259.34 g/mol

VQ-027735

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