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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

Threono-1,4-lactone chemical structure

Threono-1,4-lactone

CAS: 23732-41-4
Formula: C₄H₆O₄
MW: 118.09 g/mol

VQ-040353

Reference Standard

Threoprocaterol chemical structure

Threoprocaterol

CAS: 1640918-78-0
Formula: C₁₆H₂₂N₂O₃
MW: 290.36 g/mol

VQ-041677

Reference Standard

Thymalfasin

CAS: 69521-94-4
Formula: C₁₂₉H₂₁₅N₃₃O₅₅
MW: 3108.3 g/mol

VQ-042503

Reference Standard

Thymosin alpha 1

Thymosin alpha 1

CAS: 62304-98-7
Formula: C₁₂₉H₂₁₅N₃₃O₅₅
MW: 3108.3 g/mol

VQ-034206

Reference Standard

Thyrotropin-Releasing Hormone (TRH) chemical structure

Thyrotropin-Releasing Hormone (TRH)

CAS: 24305-27-9
Formula: C₁₆H₂₂N₆O₄
MW: 362.38 g/mol

VQ-043563

Reference Standard

Tiacumicin C chemical structure

CAS: 106008-70-2
Formula: C₅₂H₇₄Cl₂O₁₈
MW: 1058 g/mol

VQ-037259

Reference Standard

Tiacumicin F chemical structure

CAS: 106008-69-9
Formula: C₅₂H₇₄Cl₂O₁₈
MW: 1058 g/mol

VQ-030728

Reference Standard

Tiagabine alcohol analog chemical structure

Tiagabine alcohol analog

CAS: 847233-27-6
Formula: C₁₄H₁₆OS₂
MW: 264.4 g/mol

VQ-023888

Reference Standard

Tiagabine Alcohol Mesylate chemical structure

Tiagabine Alcohol Mesylate

CAS: 847233-13-0
Formula: C₁₅H₁₈O₃S₃
MW: 342.5 g/mol

VQ-023889

Reference Standard

Tiagabine Hydrochloride chemical structure

Tiagabine Hydrochloride

CAS: 145821-59-6
Formula: C₂₀H₂₆ClNO₂S₂
MW: 412 g/mol

VQ-034208

Reference Standard

Tiagabine keto analog chemical structure

Tiagabine keto analog

CAS: 161014-55-7
Formula: C₂₀H₂₅NO₃S₂
MW: 391.6 g/mol

VQ-023887

Reference Standard

Tiagabine Methyl Ester Impurity chemical structure

Tiagabine Methyl Ester Impurity

CAS: 938158-99-7
Formula: C₂₁H₂₇NO₂S₂
MW: 389.6 g/mol

VQ-028852

Reference Standard

Tiagabine USP Related Compound A chemical structure

Tiagabine USP Related Compound A

CAS: 145821-60-9
Formula: C₂₂H₃₀ClNO₂S₂
MW: 440.1 g/mol

VQ-028344

Reference Standard

Tiagabine-d6 Hydrochloride chemical structure

Tiagabine-d6 Hydrochloride

CAS: 1217808-68-8
Formula: C₂₀H₂₆ClNO₂S₂
MW: 418 g/mol

VQ-042504

Reference Standard

Tiamulin chemical structure

CAS: 55297-95-5
Formula: C₂₈H₄₇NO₄S
MW: 493.7 g/mol

VQ-034211

Reference Standard

Tiamulin EP Impurity A chemical structure

Tiamulin EP Impurity A

CAS: 6040-37-5
Formula: C₂₀H₃₂O₃
MW: 320.5 g/mol

VQ-028347

Reference Standard

Tiamulin EP Impurity B chemical structure

Tiamulin EP Impurity B

CAS: 7708-55-6
Formula: C₁₃H₂₁NS
MW: 223.38 g/mol

VQ-034213

Reference Standard

Tiamulin EP Impurity C chemical structure

Tiamulin EP Impurity C

CAS: 589-32-2
Formula: C₁₂H₂₈N₂S₂
MW: 264.5 g/mol

VQ-032475

Reference Standard

Tiamulin EP Impurity J chemical structure

Tiamulin EP Impurity J

CAS: 31771-36-5
Formula: C₂₂H₃₄O₄
MW: 362.5 g/mol

VQ-034214

Reference Standard

Tiamulin EP Impurity K chemical structure

Tiamulin EP Impurity K

CAS: 31716-11-7
Formula: C₂₂H₃₄O₄
MW: 362.5 g/mol

VQ-034215

Reference Standard

Tiamulin EP Impurity L chemical structure

Tiamulin EP Impurity L

CAS: 31716-01-5
Formula: C₂₉H₄₀O₇S
MW: 532.7 g/mol

VQ-034210

Reference Standard

Tiamulin EP Impurity M chemical structure

Tiamulin EP Impurity M

CAS: 14431-61-9
Formula: C₂₄H₃₆O₅
MW: 404.5 g/mol

VQ-034216

Reference Standard

Tiamulin EP Impurity P chemical structure

Tiamulin EP Impurity P

CAS: 848129-54-4
Formula: C₂₈H₃₈O₇S
MW: 518.7 g/mol

VQ-042505

Reference Standard

Tiamulin Fumarate chemical structure

Tiamulin Fumarate

CAS: 55297-96-6
Formula: C₃₂H₅₁NO₈S
MW: 609.8 g/mol

VQ-028346

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