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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

Montelukast Sulfone chemical structure

Montelukast Sulfone

CAS: 1266620-74-9
Formula: C₃₅H₃₆ClNO₅S
MW: 618.2 g/mol

VQ-028868

Reference Standard

Montelukast Sulphoxide chemical structure

Montelukast Sulphoxide

CAS: 1152185-58-4
Formula: C₃₅H₃₆ClNO₄S
MW: 602.2 g/mol

VQ-031998

Reference Standard

Montelukast Sulphoxide Impurity

Montelukast Sulphoxide Impurity

CAS: 184763-47-1
Formula: C₃₅H₃₆ClNO₄S
MW: 602.18 g/mol

VQ-038485

Reference Standard

Montelukast-d6 chemical structure

CAS: 1093746-29-2
Formula: C₃₅H₃₆ClNO₃S
MW: 592.2 g/mol

VQ-038502

Reference Standard

Montelukast-d6 Sodium chemical structure

Montelukast-d6 Sodium

CAS: 2673270-26-1
Formula: C₃₅H₃₅ClNNaO₃S
MW: 614.2 g/mol

VQ-032000

Reference Standard

Morantel Tartrate chemical structure

Morantel Tartrate

CAS: 26155-31-7
Formula: C₁₆H₂₂N₂O₆S
MW: 370.4 g/mol

VQ-039800

Reference Standard

Moricizine chemical structure

CAS: 31883-05-3
Formula: C₂₂H₂₅N₃O₄S
MW: 427.5 g/mol

VQ-045023

Reference Standard

Morniflumate chemical structure

CAS: 65847-85-0
Formula: C₁₉H₂₀F₃N₃O₃
MW: 395.4 g/mol

VQ-032001

Reference Standard

Moroxydine Hydrochloride chemical structure

Moroxydine Hydrochloride

CAS: 3160-91-6
Formula: C₆H₁₄ClN₅O
MW: 207.66 g/mol

VQ-049161

Reference Standard

Morphinan-3-carboxamide, 17-(cyclopropylmethyl)-4,14-dihydroxy

Morphinan-3-carboxamide, 17-(cyclopropylmethyl)-4,14-dihydroxy

CAS: 886588-56-3
Formula: C₂₁H₂₈N₂O₃
MW: 356.46 g/mol

VQ-027978

Reference Standard

Morpholine Amine Impurity

Morpholine Amine Impurity

CAS: 1992785-25-7
Formula: C₃₅H₅₀N₆O₃S
MW: 634.9 g/mol

VQ-047858

Reference Standard

Morpholine D4 chemical structure

CAS: 35530-95-1
Formula: C₄H₉NO
MW: 91.14 g/mol

VQ-044969

Reference Standard

Morpholine N-Oxide Impurity

Morpholine N-Oxide Impurity

CAS: 1992785-27-9
Formula: C₄₀H₅₃N₇O₆S₂
MW: 792.03 g/mol

VQ-036433

Reference Standard

Morpholine-d8 chemical structure

CAS: 342611-02-3
Formula: C₄H₉NO
MW: 95.17 g/mol

VQ-041147

Reference Standard

Mosapride chemical structure

CAS: 112885-41-3
Formula: C₂₁H₂₅ClFN₃O₃
MW: 421.9 g/mol

VQ-032002

Reference Standard

Mosapride Citrate chemical structure

Mosapride Citrate

CAS: 112885-42-4
Formula: C₂₇H₃₃ClFN₃O₁₀
MW: 614 g/mol

VQ-038503

Reference Standard

Mosapride Citrate Dihydrate chemical structure

Mosapride Citrate Dihydrate

CAS: 636582-62-2
Formula: C₂₇H₃₇ClFN₃O₁₂
MW: 650 g/mol

VQ-032003

Reference Standard

Mosapride Citric Amide chemical structure

Mosapride Citric Amide

CAS: 1215825-20-9
Formula: C₂₇H₃₁ClFN₃O₉
MW: 596 g/mol

VQ-032005

Reference Standard

Mosapride N-Oxide chemical structure

Mosapride N-Oxide

CAS: 1161443-73-7
Formula: C₂₁H₂₅ClFN₃O₄
MW: 437.9 g/mol

VQ-032004

Reference Standard

Mosapride-d5 chemical structure

CAS: 1246820-66-5
Formula: C₂₁H₂₅ClFN₃O₃
MW: 426.9 g/mol

VQ-032006

Reference Standard

Motixafortide

CAS: 664334-36-5
Formula: C₉₇H₁₄₄FN₃₃O₁₉S₂
MW: 2159.5 g/mol

VQ-045085

Reference Standard

MOTS-c

CAS: 1627580-64-6
Formula: C₁₀₁H₁₅₂N₂₈O₂₂S₂
MW: 2174.6 g/mol

VQ-040996

Reference Standard

Moxidectin chemical structure

CAS: 113507-06-5
Formula: C₃₇H₅₃NO₈
MW: 639.8 g/mol

VQ-032007

Reference Standard

Moxidectin EP Impurity A chemical structure

Moxidectin EP Impurity A

CAS: 114041-32-6
Formula: C₃₅H₄₉NO₈
MW: 611.8 g/mol

VQ-043509

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