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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

Tegafur chemical structure

CAS: 17902-23-7
Formula: C₈H₉FN₂O₃
MW: 200.17 g/mol

VQ-034075

Reference Standard

Tegaserod Maleate chemical structure

Tegaserod Maleate

CAS: 189188-57-6
Formula: C₂₀H₂₇N₅O₅
MW: 417.5 g/mol

VQ-042384

Reference Standard

Tegoprazan chemical structure

CAS: 942195-55-3
Formula: C₂₀H₁₉F₂N₃O₃
MW: 387.4 g/mol

VQ-028222

Reference Standard

Tegoprazan 4-methylphenylsulfonyl Impurity

Tegoprazan 4-methylphenylsulfonyl Impurity

CAS: 942485-42-9
Formula: C₂₇H₂₅F₂N₃O₅S
MW: 541.57 g/mol

VQ-028227

Reference Standard

Tegoprazan Impurity 32 chemical structure

Tegoprazan Impurity 32

CAS: 1640981-05-0
Formula: C₁₇H₁₈N₂O₄
MW: 314.34 g/mol

VQ-042387

Reference Standard

Tegoprazan Tosyl Impurity chemical structure

Tegoprazan Tosyl Impurity

CAS: 942195-85-9
Formula: C₂₅H₂₅N₃O₄S
MW: 463.6 g/mol

VQ-035509

Reference Standard

Teicoplanin A2-1 chemical structure

Teicoplanin A2-1

CAS: 91032-34-7
Formula: C₈₈H₉₅Cl₂N₉O₃₃
MW: 1877.6 g/mol

VQ-042388

Reference Standard

Teicoplanin A2-1a chemical structure

Teicoplanin A2-1a

CAS: 122043-87-2
Formula: C₈₇H₉₅Cl₂N₉O₃₃
MW: 1865.6 g/mol

VQ-042389

Reference Standard

Teicoplanin A2-1b chemical structure

Teicoplanin A2-1b

CAS: 122018-64-8
Formula: C₈₇H₉₅Cl₂N₉O₃₃
MW: 1865.6 g/mol

VQ-042390

Reference Standard

Telaprevir chemical structure

CAS: 402957-28-2
Formula: C₃₆H₅₃N₇O₆
MW: 679.8 g/mol

VQ-043445

Reference Standard

Telavancin chemical structure

CAS: 372151-71-8
Formula: C₈₀H₁₀₆Cl₂N₁₁O₂₇P
MW: 1755.6 g/mol

VQ-034080

Reference Standard

Telavancin Hydrochloride chemical structure

Telavancin Hydrochloride

CAS: 560130-42-9
Formula: C₈₀H₁₀₇Cl₃N₁₁O₂₇P
MW: 1792.1 g/mol

VQ-042391

Reference Standard

Telbivudine chemical structure

CAS: 3424-98-4
Formula: C₁₀H₁₄N₂O₅
MW: 242.23 g/mol

VQ-034081

Reference Standard

Telimisartan WS (N-1)

Telimisartan WS (N-1)

Formula: C₃₃H₃₆N₄O₂
MW: 514.62 g/mol

VQ-007780

Reference Standard

Telithromycin chemical structure

CAS: 191114-48-4
Formula: C₄₃H₆₅N₅O₁₀
MW: 812 g/mol

VQ-044317

Reference Standard

Telmisartan Acyl-beta-D-glucuronide chemical structure

Telmisartan Acyl-beta-D-glucuronide

CAS: 250780-40-6
Formula: C₃₉H₃₈N₄O₈
MW: 690.7 g/mol

VQ-028235

Reference Standard

Telmisartan Bromo Acid Impurity chemical structure

Telmisartan Bromo Acid Impurity

CAS: 150766-86-2
Formula: C₁₄H₁₁BrO₂
MW: 291.14 g/mol

VQ-005988

Reference Standard

Telmisartan Bromo Amide chemical structure

Telmisartan Bromo Amide

CAS: 147404-72-6
Formula: C₁₄H₁₂BrNO
MW: 290.15 g/mol

VQ-028232

Reference Standard

Telmisartan dibromo acid impurity chemical structure

Telmisartan dibromo acid impurity

CAS: 1797894-62-2
Formula: C₁₄H₁₀Br₂O₂
MW: 370.03 g/mol

VQ-023852

Reference Standard

Telmisartan Dimer Ester Impurity chemical structure

Telmisartan Dimer Ester Impurity

CAS: 884330-13-6
Formula: C₄₈H₄₂N₄O₄
MW: 738.9 g/mol

VQ-034085

Reference Standard

Telmisartan Dimer Impurity chemical structure

Telmisartan Dimer Impurity

CAS: 884330-14-7
Formula: C₄₆H₃₈N₄O₄
MW: 710.8 g/mol

In stock

Reference Standard

Telmisartan EP Impurity A chemical structure

Telmisartan EP Impurity A

CAS: 152628-02-9
Formula: C₁₉H₂₀N₄
MW: 304.4 g/mol

In stock

Reference Standard

Telmisartan EP Impurity B chemical structure

Telmisartan EP Impurity B

CAS: 1026353-20-7
Formula: C₃₃H₃₀N₄O₂
MW: 514.6 g/mol

In stock

Reference Standard

Telmisartan EP Impurity B Methyl Ester chemical structure

Telmisartan EP Impurity B Methyl Ester

CAS: 1338830-37-7
Formula: C₃₄H₃₂N₄O₂
MW: 528.6 g/mol

In stock

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