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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

Lovastatin EP Impurity E chemical structure

Lovastatin EP Impurity E

CAS: 77517-29-4
Formula: C₂₄H₃₈O₅
MW: 406.6 g/mol

VQ-026525

Reference Standard

Lovastatin EP Impurity F chemical structure

Lovastatin EP Impurity F

CAS: 1048973-04-1
Formula: C₂₄H₃₄O₅
MW: 402.5 g/mol

VQ-026527

Reference Standard

Lovastatin Impurity 2

Lovastatin Impurity 2

CAS: 1002350-06-2
Formula: C₂₂H₂₈FN₃O₆S
MW: 481.54 g/mol

VQ-048965

Reference Standard

Lovastatin-d3 chemical structure

CAS: 1002345-93-8
Formula: C₂₄H₃₆O₅
MW: 407.6 g/mol

VQ-038166

Reference Standard

Loxapine chemical structure

CAS: 1977-10-2
Formula: C₁₈H₁₈ClN₃O
MW: 327.8 g/mol

VQ-048966

Reference Standard

Loxapine D8 chemical structure

CAS: 1189455-63-7
Formula: C₁₈H₁₈ClN₃O
MW: 335.9 g/mol

VQ-048968

Reference Standard

Loxapine N-Oxide chemical structure

Loxapine N-Oxide

CAS: 25967-34-4
Formula: C₁₈H₁₈ClN₃O₂
MW: 343.8 g/mol

VQ-031662

Reference Standard

Loxapine Succinate chemical structure

Loxapine Succinate

CAS: 27833-64-3
Formula: C₂₂H₂₄ClN₃O₅
MW: 445.9 g/mol

VQ-038167

Reference Standard

Loxapine-d8 Hydrochloride chemical structure

Loxapine-d8 Hydrochloride

CAS: 1246820-19-8
Formula: C₁₈H₁₉Cl₂N₃O
MW: 372.3 g/mol

VQ-038169

Reference Standard

Loxoprofen chemical structure

CAS: 68767-14-6
Formula: C₁₅H₁₈O₃
MW: 246.3 g/mol

VQ-026529

Reference Standard

Loxoprofen Impurity 39 chemical structure

Loxoprofen Impurity 39

CAS: 2274853-20-0
Formula: C₁₈H₂₂O₅
MW: 318.4 g/mol

VQ-048971

Reference Standard

Loxoprofen Sodium chemical structure

Loxoprofen Sodium

CAS: 80382-23-6
Formula: C₁₅H₁₇NaO₃
MW: 268.28 g/mol

VQ-031665

Reference Standard

Loxoprofen Sodium Salt Dihydrate chemical structure

Loxoprofen Sodium Salt Dihydrate

CAS: 226721-96-6
Formula: C₁₅H₂₁NaO₅
MW: 304.31 g/mol

VQ-038170

Reference Standard

Lubiprostone chemical structure

CAS: 136790-76-6
Formula: C₂₀H₃₂F₂O₅
MW: 390.5 g/mol

VQ-031669

Reference Standard

Lubiprostone-d7 chemical structure

Lubiprostone-d7

CAS: 1217675-13-2
Formula: C₂₀H₃₂F₂O₅
MW: 397.5 g/mol

VQ-038182

Reference Standard

Lufenuron chemical structure

CAS: 103055-07-8
Formula: C₁₇H₈Cl₂F₈N₂O₃
MW: 511.1 g/mol

VQ-031671

Reference Standard

Lufenuron EP Impurity B chemical structure

Lufenuron EP Impurity B

CAS: 2767988-84-9
Formula: C₁₄H₈Cl₂F₂N₂O₃
MW: 361.1 g/mol

VQ-043507

Reference Standard

Luliconazole chemical structure

CAS: 187164-19-8
Formula: C₁₄H₉Cl₂N₃S₂
MW: 354.3 g/mol

VQ-038183

Reference Standard

Luliconazole-Z-Isomer chemical structure

Luliconazole-Z-Isomer

CAS: 1240249-76-6
Formula: C₁₄H₉Cl₂N₃S₂
MW: 354.3 g/mol

VQ-031673

Reference Standard

Lumacaftor chemical structure

CAS: 936727-05-8
Formula: C₂₄H₁₈F₂N₂O₅
MW: 452.4 g/mol

VQ-026531

Reference Standard

Lumacaftor Amide chemical structure

Lumacaftor Amide

CAS: 2071254-53-8
Formula: C₁₁H₉F₂NO₃
MW: 241.19 g/mol

VQ-038186

Reference Standard

Lumacaftor N-Oxide

Lumacaftor N-Oxide

CAS: 2760759-52-0
Formula: C₂₄H₁₈F₂N₂O₆
MW: 468.4 g/mol

VQ-038187

Reference Standard

Lumacaftor pentanoyl impurity

Lumacaftor pentanoyl impurity

CAS: 2760759-54-2
Formula: C₂₈H₂₆F₂N₂O₄
MW: 492.52 g/mol

VQ-031677

Reference Standard

Lumacaftor-d4 chemical structure

CAS: 2733561-44-7
Formula: C₂₄H₁₈F₂N₂O₅
MW: 456.4 g/mol

VQ-038188

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