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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

Ambrisentan Acyl Beta-D-Glucuronide chemical structure

Ambrisentan Acyl Beta-D-Glucuronide

CAS: 1106685-58-8
Formula: C₂₈H₃₀N₂O₁₀
MW: 554.5 g/mol

VQ-029089

Reference Standard

Ambrisentan Acyl Glucuronide (Mixture of Diastereomers) chemical structure

Ambrisentan Acyl Glucuronide (Mixture of Diastereomers)

CAS: 1106685-82-8
Formula: C₂₈H₃₀N₂O₁₀
MW: 554.5 g/mol

VQ-029091

Reference Standard

Ambrisentan D3

CAS: 1046116-26-0
Formula: C₂₂H₁₉D₃N₂O₄
MW: 381.44 g/mol

VQ-029092

Reference Standard

Ambrisentan Ethyl Ester

Ambrisentan Ethyl Ester

CAS: 1349854-31-4
Formula: C₂₄H₂₆N₂O₄
MW: 406.47 g/mol

VQ-021533

Reference Standard

Ambrisentan Hydroxyester Impurity chemical structure

Ambrisentan Hydroxyester Impurity

CAS: 177036-78-1
Formula: C₁₇H₁₈O₄
MW: 286.32 g/mol

VQ-021530

Reference Standard

Ambrisentan Impurity 1

Ambrisentan Impurity 1

CAS: 59209-45-9
Formula: C₁₀H₂₁ClN₂O
MW: 220.74 g/mol

VQ-047376

Reference Standard

Ambrisentan Impurity E chemical structure

Ambrisentan Impurity E

CAS: 1312092-82-2
Formula: C₂₁H₁₈N₂O₃
MW: 346.4 g/mol

VQ-021532

Reference Standard

Ambrisentan Methyl Ester chemical structure

Ambrisentan Methyl Ester

CAS: 1106685-61-3
Formula: C₂₃H₂₄N₂O₄
MW: 392.4 g/mol

VQ-020781

Reference Standard

Ambrisentan Vinyloxy Impurity chemical structure

Ambrisentan Vinyloxy Impurity

CAS: 1639429-81-4
Formula: C₂₀H₁₈N₂O
MW: 302.4 g/mol

VQ-021529

Reference Standard

Ambrisentan-D10 chemical structure

Ambrisentan-D10

CAS: 1046116-27-1
Formula: C₂₂H₂₂N₂O₄
MW: 388.5 g/mol

VQ-035671

Reference Standard

Ambroxol chemical structure

CAS: 18683-91-5
Formula: C₁₃H₁₈Br₂N₂O
MW: 378.1 g/mol

In stock

Reference Standard

Ambroxol Cycloimine Impurity chemical structure

Ambroxol Cycloimine Impurity

CAS: 2088879-81-4
Formula: C₁₄H₁₆Br₂N₂O
MW: 388.1 g/mol

In stock

Reference Standard

Ambroxol Cycloimine Impurity (Hydrochloride) chemical structure

Ambroxol Cycloimine Impurity (Hydrochloride)

CAS: 2356152-56-0
Formula: C₁₄H₁₇Br₂ClN₂O
MW: 424.56 g/mol

VQ-004362

Reference Standard

Ambroxol EP Impurity A chemical structure

Ambroxol EP Impurity A

CAS: 50739-76-9
Formula: C₇H₇Br₂NO
MW: 280.94 g/mol

In stock

Reference Standard

Ambroxol EP Impurity C chemical structure

Ambroxol EP Impurity C

CAS: 50910-53-7
Formula: C₁₃H₁₆Br₂N₂O
MW: 376.09 g/mol

VQ-021535

Reference Standard

Ambroxol EP Impurity D chemical structure

Ambroxol EP Impurity D

CAS: 107814-37-9
Formula: C₁₃H₁₈Br₂N₂O
MW: 378.1 g/mol

VQ-006217

Reference Standard

Ambroxol EP Impurity D (Hydrochloride) chemical structure

Ambroxol EP Impurity D (Hydrochloride)

CAS: 1384955-66-1
Formula: C₁₃H₁₉Br₂ClN₂O
MW: 414.56 g/mol

In stock

Reference Standard

Ambroxol EP Impurity E chemical structure

Ambroxol EP Impurity E

CAS: 50910-55-9
Formula: C₇H₅Br₂NO
MW: 278.93 g/mol

In stock

Reference Standard

Ambroxol Hydrochloride chemical structure

Ambroxol Hydrochloride

CAS: 23828-92-4
Formula: C₁₃H₁₉Br₂ClN₂O
MW: 414.56 g/mol

In stock

Reference Standard

Ambroxol Impurity B chemical structure

Ambroxol Impurity B

CAS: 18683-95-9
Formula: C₁₄H₁₈Br₂N₂O
MW: 390.11 g/mol

In stock

Reference Standard

Ambroxol Impurity B (Hydrochloride) chemical structure

Ambroxol Impurity B (Hydrochloride)

CAS: 15942-08-2
Formula: C₁₄H₁₉Br₂ClN₂O
MW: 426.57 g/mol

VQ-004364

Reference Standard

Ambroxol Monobromine chemical structure

Ambroxol Monobromine

CAS: 101900-43-0
Formula: C₁₃H₁₉BrN₂O
MW: 299.21 g/mol

VQ-034779

Reference Standard

Ambroxol O-glucuronide chemical structure

Ambroxol O-glucuronide

CAS: 1241045-91-9
Formula: C₁₉H₂₆Br₂N₂O₇
MW: 554.2 g/mol

VQ-035675

Reference Standard

Ambroxol-d5 Hydrochloride chemical structure

Ambroxol-d5 Hydrochloride

CAS: 2741380-71-0
Formula: C₁₃H₁₉Br₂ClN₂O
MW: 419.59 g/mol

VQ-029096

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