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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.

27,990products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,098 Pharmacopeial Impurities (EP / USP / BP) 4,399 Nitrosamine Impurities 631 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504 Metabolites & Degradation Products 3,922 API Reference Standards 3,436

Reference Standard

Tipiracil Hydrochloride chemical structure

Tipiracil Hydrochloride

CAS: 183204-72-0
Formula: C₉H₁₂Cl₂N₄O₂
MW: 279.12 g/mol

VQ-042564

Reference Standard

Tipiracil Hydroxy Impurity chemical structure

Tipiracil Hydroxy Impurity

CAS: 1815580-54-1
Formula: C₅H₅ClN₂O₃
MW: 176.56 g/mol

VQ-028404

Reference Standard

Tipiracil Impurity 3 chemical structure

Tipiracil Impurity 3

CAS: 183205-17-6
Formula: C₅H₆ClN₃O₂
MW: 175.57 g/mol

VQ-042565

Reference Standard

Tirbanibulin chemical structure

CAS: 897016-82-9
Formula: C₂₆H₂₉N₃O₃
MW: 431.5 g/mol

VQ-028405

Reference Standard

Tirbanibulin Impurity E chemical structure

Tirbanibulin Impurity E

CAS: 3057380-07-8
Formula: C₂₂H₂₃N₃O₂
MW: 361.4 g/mol

VQ-042566

Reference Standard

Tirofiban chemical structure

CAS: 144494-65-5
Formula: C₂₂H₃₆N₂O₅S
MW: 440.6 g/mol

VQ-034295

Reference Standard

Tirofiban D9 Hydrochloride chemical structure

Tirofiban D9 Hydrochloride

CAS: 1331911-68-2
Formula: C₂₂H₃₇ClN₂O₅S
MW: 486.1 g/mol

VQ-042567

Reference Standard

Tirofiban Hydrochloride chemical structure

Tirofiban Hydrochloride

CAS: 142373-60-2
Formula: C₂₂H₃₇ClN₂O₅S
MW: 477.1 g/mol

VQ-042568

Reference Standard

Tirofiban Hydrochloride hydrate chemical structure

Tirofiban Hydrochloride hydrate

CAS: 150915-40-5
Formula: C₂₂H₃₉ClN₂O₆S
MW: 495.1 g/mol

VQ-034293

Reference Standard

Tirofiban Impurity 1 chemical structure

Tirofiban Impurity 1

CAS: 2386-54-1
Formula: C₄H₉NaO₃S
MW: 160.17 g/mol

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Reference Standard

Tirofiban Impurity B chemical structure

Tirofiban Impurity B

CAS: 149463-65-0
Formula: C₉H₁₃Cl₂N
MW: 206.11 g/mol

VQ-042569

Reference Standard

Tiropramide Hydrochloride chemical structure

Tiropramide Hydrochloride

CAS: 53567-47-8
Formula: C₂₈H₄₂ClN₃O₃
MW: 504.1 g/mol

VQ-042570

Reference Standard

Tiropramide impurity A chemical structure

Tiropramide impurity A

CAS: 14325-35-0
Formula: C₂₃H₁₉NO₅
MW: 389.4 g/mol

VQ-042572

Reference Standard

Tirzepatide

CAS: 2023788-19-2
Formula: C₂₂₅H₃₄₈N₄₈O₆₈
MW: 4813 g/mol

VQ-034296

Reference Standard

Tirzepatide Sidechain chemical structure

Tirzepatide Sidechain

CAS: 2915356-76-0
Formula: C₆₆H₁₀₅N₅O₁₆
MW: 1224.6 g/mol

VQ-042573

Reference Standard

Tivozanib chemical structure

CAS: 475108-18-0
Formula: C₂₂H₁₉ClN₄O₅
MW: 454.9 g/mol

VQ-007802

Reference Standard

Tivozanib Impurity A chemical structure

Tivozanib Impurity A

CAS: 3051498-24-6
Formula: C₂₈H₂₄ClN₃O₅
MW: 518 g/mol

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Reference Standard

Tivozanib Impurity B

Tivozanib Impurity B

CAS: 3051498-34-8
Formula: C₂₄H₁₉ClN₂O₅
MW: 450.87 g/mol

In stock

Reference Standard

Tivozanib Impurity C chemical structure

Tivozanib Impurity C

CAS: 3051498-20-2
Formula: C₃₅H₂₈Cl₂N₄O₇
MW: 687.5 g/mol

In stock

Reference Standard

Tivozanib Impurity D chemical structure

Tivozanib Impurity D

CAS: 1796383-31-7
Formula: C₉H₁₀N₄O₃
MW: 222.2 g/mol

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Reference Standard

Tivozanib-d6 (Dimethoxy-d6)

Tivozanib-d6 (Dimethoxy-d6)

CAS: 1714998-87-4
Formula: C₂₂H₁₃D₆ClN₄O₅
MW: 460.9 g/mol

VQ-028410

Reference Standard

Tizanidine chemical structure

CAS: 51322-75-9
Formula: C₉H₈ClN₅S
MW: 253.71 g/mol

VQ-007803

Reference Standard

Tizanidine Dehydro Impurity chemical structure

Tizanidine Dehydro Impurity

CAS: 125292-34-4
Formula: C₉H₆ClN₅S
MW: 251.7 g/mol

VQ-045356

Reference Standard

Tizanidine EP Impurity A chemical structure

Tizanidine EP Impurity A

CAS: 51322-69-1
Formula: C₉H₉N₅S
MW: 219.27 g/mol

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