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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

Trityl Candesartan chemical structure

Trityl Candesartan

CAS: 139481-72-4
Formula: C₄₃H₃₄N₆O₃
MW: 682.8 g/mol

VQ-024740

Reference Standard

Trityl Olmesartan Acid chemical structure

Trityl Olmesartan Acid

CAS: 761404-85-7
Formula: C₄₃H₄₀N₆O₃
MW: 688.8 g/mol

VQ-032236

Reference Standard

Trityl Olmesartan Dimer Impurity

Trityl Olmesartan Dimer Impurity

CAS: 1454571-98-2
Formula: C₉₁H₈₂N₁₂O₉
MW: 1487.7 g/mol

VQ-043244

Reference Standard

TritylOlmesartan Medoxomil chemical structure

TritylOlmesartan Medoxomil

CAS: 144690-92-6
Formula: C₄₈H₄₄N₆O₆
MW: 800.9 g/mol

VQ-023326

Reference Standard

Trofinetide chemical structure

CAS: 853400-76-7
Formula: C₁₃H₂₁N₃O₆
MW: 315.32 g/mol

VQ-028552

Reference Standard

Trofinetide Impurity 3 chemical structure

Trofinetide Impurity 3

CAS: 1286768-32-8
Formula: C₇H₁₄ClNO₂
MW: 179.64 g/mol

VQ-047944

Reference Standard

Troglitazone chemical structure

CAS: 97322-87-7
Formula: C₂₄H₂₇NO₅S
MW: 441.5 g/mol

VQ-042719

Reference Standard

Trolamine EP Impurity A chemical structure

Trolamine EP Impurity A

CAS: 141-43-5
Formula: C₂H₇NO
MW: 61.08 g/mol

In stock

Reference Standard

Troleandomycin chemical structure

CAS: 2751-09-9
Formula: C₄₁H₆₇NO₁₅
MW: 814 g/mol

VQ-042720

Reference Standard

Tropicamide chemical structure

CAS: 1508-75-4
Formula: C₁₇H₂₀N₂O₂
MW: 284.35 g/mol

VQ-034456

Reference Standard

Tropicamide EP Impurity A chemical structure

Tropicamide EP Impurity A

CAS: 33403-97-3
Formula: C₈H₁₂N₂
MW: 136.19 g/mol

VQ-034457

Reference Standard

Tropicamide EP Impurity B chemical structure

Tropicamide EP Impurity B

CAS: 57322-50-6
Formula: C₁₇H₁₈N₂O
MW: 266.34 g/mol

VQ-034458

Reference Standard

Tropine 3-mesylate chemical structure

Tropine 3-mesylate

CAS: 35130-97-3
Formula: C₉H₁₇NO₃S
MW: 219.3 g/mol

VQ-024433

Reference Standard

Tropine Methylbromide

Tropine Methylbromide

CAS: 13206-03-6
Formula: C₉H₁₈NO.Br
MW: 236.15 g/mol

VQ-035857

Reference Standard

Tropisetron Hydrochloride chemical structure

Tropisetron Hydrochloride

CAS: 105826-92-4
Formula: C₁₇H₂₁ClN₂O₂
MW: 320.8 g/mol

VQ-028553

Reference Standard

Trospium chloride chemical structure

Trospium chloride

CAS: 10405-02-4
Formula: C₂₅H₃₀ClNO₃
MW: 428 g/mol

VQ-023940

Reference Standard

Trospium Chloride EP Impurity B chemical structure

Trospium Chloride EP Impurity B

CAS: 63516-30-3
Formula: C₂₁H₂₄ClNO₃
MW: 373.9 g/mol

VQ-028554

Reference Standard

Trospium EP Impurity B chemical structure

Trospium EP Impurity B

CAS: 16444-19-2
Formula: C₂₁H₂₃NO₃
MW: 337.4 g/mol

VQ-028854

Reference Standard

Tryptamine chemical structure

CAS: 61-54-1
Formula: C₁₀H₁₂N₂
MW: 160.22 g/mol

In stock

Reference Standard

Tryptamine Hydrochloride chemical structure

Tryptamine Hydrochloride

CAS: 343-94-2
Formula: C₁₀H₁₃ClN₂
MW: 196.67 g/mol

VQ-007824

Reference Standard

Tryptamine-d4 Hydrochloride chemical structure

Tryptamine-d4 Hydrochloride

CAS: 340257-60-5
Formula: C₁₀H₁₃ClN₂
MW: 200.7 g/mol

VQ-041249

Reference Standard

Tryptophan - Impurity G chemical structure

Tryptophan - Impurity G

CAS: 21704-80-3
Formula: C₁₁H₁₂N₂O₃
MW: 220.22 g/mol

VQ-028563

Reference Standard

Tryptophan Cyclized impurity chemical structure

Tryptophan Cyclized impurity

CAS: 40856-80-2
Formula: C₁₂H₁₁N₃O₂
MW: 229.23 g/mol

VQ-028561

Reference Standard

Tryptophan EP Impurity A chemical structure

Tryptophan EP Impurity A

CAS: 132685-02-0
Formula: C₂₄H₂₆N₄O₄
MW: 434.5 g/mol

VQ-028556

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