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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

Melphalan Isopropyl Ester Hydrochloride chemical structure

Melphalan Isopropyl Ester Hydrochloride

CAS: 757234-98-3
Formula: C₁₆H₂₅Cl₃N₂O₂
MW: 383.7 g/mol

VQ-031778

Reference Standard

Melphalan Methyl Ester Hydrochloride chemical structure

Melphalan Methyl Ester Hydrochloride

CAS: 62978-52-3
Formula: C₁₄H₂₁Cl₃N₂O₂
MW: 355.7 g/mol

VQ-026593

Reference Standard

Melphalan Racemic Mixture chemical structure

Melphalan Racemic Mixture

CAS: 1465-26-5
Formula: C₁₃H₁₉Cl₃N₂O₂
MW: 341.7 g/mol

VQ-038299

Reference Standard

Melphalan-d8 Hydrochloride chemical structure

Melphalan-d8 Hydrochloride

CAS: 1217854-43-7
Formula: C₁₃H₁₉Cl₃N₂O₂
MW: 349.7 g/mol

VQ-031779

Reference Standard

Memantine chemical structure

CAS: 19982-08-2
Formula: C₁₂H₂₁N
MW: 179.3 g/mol

VQ-007568

Reference Standard

Memantine EP Impurity B chemical structure

Memantine EP Impurity B

CAS: 42194-25-2
Formula: C₁₃H₂₃N
MW: 193.33 g/mol

VQ-045116

Reference Standard

Memantine EP Impurity C chemical structure

Memantine EP Impurity C

CAS: 707-36-8
Formula: C₁₂H₁₉Cl
MW: 198.73 g/mol

VQ-023059

Reference Standard

Memantine EP Impurity D chemical structure

Memantine EP Impurity D

CAS: 41100-45-2
Formula: C₁₂H₂₁N
MW: 179.3 g/mol

VQ-035300

Reference Standard

Memantine Glycine chemical structure

Memantine Glycine

CAS: 1340545-88-1
Formula: C₁₄H₂₃NO₂
MW: 237.34 g/mol

VQ-035006

Reference Standard

Memantine hydrochloride WS chemical structure

Memantine hydrochloride WS

CAS: 41100-52-1
Formula: C₁₂H₂₂ClN
MW: 215.76 g/mol

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Reference Standard

Memantine lactose adduct chemical structure

Memantine lactose adduct

CAS: 1159637-28-1
Formula: C₂₄H₄₁NO₁₀
MW: 503.6 g/mol

VQ-026599

Reference Standard

Memantine N-beta-D-Glucuronide chemical structure

Memantine N-beta-D-Glucuronide

CAS: 1809031-06-8
Formula: C₁₈H₂₉NO₆
MW: 355.4 g/mol

VQ-049040

Reference Standard

Memantine Related Compound H chemical structure

Memantine Related Compound H

CAS: 15210-60-3
Formula: C₁₃H₂₄ClN
MW: 229.79 g/mol

VQ-026605

Reference Standard

Memantine Related Compound I chemical structure

Memantine Related Compound I

CAS: 80121-67-1
Formula: C₁₂H₂₂ClN
MW: 215.76 g/mol

VQ-026604

Reference Standard

Memantine-d6 Hydrochloride chemical structure

Memantine-d6 Hydrochloride

CAS: 1189713-18-5
Formula: C₁₂H₂₂ClN
MW: 221.8 g/mol

VQ-038305

Reference Standard

Menadiol chemical structure

CAS: 481-85-6
Formula: C₁₁H₁₀O₂
MW: 174.2 g/mol

VQ-049041

Reference Standard

Menadione 2,3 - epoxide chemical structure

Menadione 2,3 - epoxide

CAS: 15448-59-6
Formula: C₁₁H₈O₃
MW: 188.18 g/mol

VQ-041470

Reference Standard

Menaquinone 6 chemical structure

CAS: 84-81-1
Formula: C₄₁H₅₆O₂
MW: 580.9 g/mol

VQ-034669

Reference Standard

Menaquinone-4 chemical structure

CAS: 863-61-6
Formula: C₃₁H₄₀O₂
MW: 444.6 g/mol

VQ-028731

Reference Standard

Menaquinone-7 chemical structure

CAS: 2124-57-4
Formula: C₄₆H₆₄O₂
MW: 649 g/mol

VQ-034668

Reference Standard

Menbutone chemical structure

CAS: 3562-99-0
Formula: C₁₅H₁₄O₄
MW: 258.27 g/mol

VQ-038306

Reference Standard

Menthofuran chemical structure

CAS: 494-90-6
Formula: C₁₀H₁₄O
MW: 150.22 g/mol

VQ-032406

Reference Standard

Menthol D4 chemical structure

CAS: 1217765-02-0
Formula: C₁₀H₂₀O
MW: 160.29 g/mol

VQ-043423

Reference Standard

Menthol Glucuronide chemical structure

Menthol Glucuronide

CAS: 79466-08-3
Formula: C₁₆H₂₈O₇
MW: 332.39 g/mol

VQ-031787

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