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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

Mirabegron Nitroso Impurity 12 chemical structure

Mirabegron Nitroso Impurity 12

CAS: 3035190-51-0
Formula: C₁₆H₁₇N₃O₄
MW: 315.32 g/mol

VQ-026725

Reference Standard

Mirabegron WS chemical structure

CAS: 223673-61-8
Formula: C₂₁H₂₄N₄O₂S
MW: 396.5 g/mol

In stock

Reference Standard

Mirabegrone DP1 Impurity

Mirabegrone DP1 Impurity

CAS: 1884645-53-7
Formula: C₁₆H₂₀N₂O
MW: 256.34 g/mol

VQ-038423

Reference Standard

Miramistin chemical structure

CAS: 15809-19-5
Formula: C₂₆H₄₇ClN₂O
MW: 439.1 g/mol

VQ-032703

Reference Standard

Mirdametinib chemical structure

CAS: 391210-10-9
Formula: C₁₆H₁₄F₃IN₂O₄
MW: 482.19 g/mol

VQ-049134

Reference Standard

Mirdametinib Enantiomer chemical structure

Mirdametinib Enantiomer

CAS: 391210-11-0
Formula: C₁₆H₁₄F₃IN₂O₄
MW: 482.19 g/mol

VQ-049135

Reference Standard

Miriplatin Impurity 2 chemical structure

Miriplatin Impurity 2

CAS: 63058-74-2
Formula: C₆H₁₈N₂O₂Pt
MW: 345.3 g/mol

VQ-041258

Reference Standard

Mirogabalin chemical structure

CAS: 1138245-13-2
Formula: C₁₂H₁₉NO₂
MW: 209.28 g/mol

VQ-023152

Reference Standard

Mirogabalin besylate chemical structure

Mirogabalin besylate

CAS: 1138245-21-2
Formula: C₁₈H₂₅NO₅S
MW: 367.5 g/mol

VQ-038427

Reference Standard

Mirogabalin Lactam chemical structure

Mirogabalin Lactam

CAS: 3042853-06-2
Formula: C₁₂H₁₇NO
MW: 191.27 g/mol

VQ-023154

Reference Standard

Mirogabalin Nitro Tert-Butyl Ester Impurity chemical structure

Mirogabalin Nitro Tert-Butyl Ester Impurity

CAS: 1798817-68-1
Formula: C₃₂H₅₀N₂O₈
MW: 590.7 g/mol

VQ-038429

Reference Standard

Mirtazapine chemical structure

CAS: 85650-52-8
Formula: C₁₇H₁₉N₃
MW: 265.35 g/mol

VQ-023155

Reference Standard

Mirtazapine Cyano Impurity chemical structure

Mirtazapine Cyano Impurity

CAS: 61337-88-0
Formula: C₁₇H₁₈N₄
MW: 278.35 g/mol

VQ-026731

Reference Standard

Mirtazapine Cyano Impurity (Oxalate salt) chemical structure

Mirtazapine Cyano Impurity (Oxalate salt)

CAS: 331815-15-7
Formula: C₁₉H₂₀N₄O₄
MW: 368.4 g/mol

VQ-031954

Reference Standard

Mirtazapine EP Impurity A chemical structure

Mirtazapine EP Impurity A

CAS: 155172-12-6
Formula: C₁₇H₁₉N₃O
MW: 281.35 g/mol

VQ-023156

Reference Standard

Mirtazapine EP Impurity B chemical structure

Mirtazapine EP Impurity B

CAS: 61337-89-1
Formula: C₁₇H₂₁N₃O
MW: 283.37 g/mol

VQ-023157

Reference Standard

Mirtazapine EP Impurity C chemical structure

Mirtazapine EP Impurity C

CAS: 191546-96-0
Formula: C₁₇H₁₇N₃O
MW: 279.34 g/mol

VQ-023158

Reference Standard

Mirtazapine EP Impurity D chemical structure

Mirtazapine EP Impurity D

CAS: 61337-68-6
Formula: C₁₆H₁₇N₃
MW: 251.33 g/mol

VQ-023159

Reference Standard

Mirtazapine EP Impurity E chemical structure

Mirtazapine EP Impurity E

CAS: 191546-94-8
Formula: C₁₇H₂₁N₃
MW: 267.37 g/mol

VQ-023160

Reference Standard

Mirtazapine EP Impurity F chemical structure

Mirtazapine EP Impurity F

CAS: 191546-97-1
Formula: C₁₇H₁₇N₃O
MW: 279.34 g/mol

VQ-023162

Reference Standard

Mirtazapine Hemihydrate chemical structure

Mirtazapine Hemihydrate

CAS: 341512-89-8
Formula: C₃₄H₄₀N₆O
MW: 548.7 g/mol

VQ-044373

Reference Standard

Mirtazapine N-Glucuronide (Mixture of Diastereomers) chemical structure

Mirtazapine N-Glucuronide (Mixture of Diastereomers)

CAS: 1080533-15-8
Formula: C₂₃H₂₈N₃O₆⁺
MW: 442.5 g/mol

VQ-038433

Reference Standard

Mirtazapine-d3 chemical structure

CAS: 1216678-68-0
Formula: C₁₇H₁₉N₃
MW: 268.37 g/mol

VQ-026734

Reference Standard

Mirtazapine-d4 chemical structure

CAS: 1215898-55-7
Formula: C₁₇H₁₉N₃
MW: 269.38 g/mol

VQ-038434

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