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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

trans-Prucalopride N-oxide chemical structure

trans-Prucalopride N-oxide

CAS: 566197-86-2
Formula: C₁₈H₂₆ClN₃O₄
MW: 383.9 g/mol

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Reference Standard

Trans-Sobrerol chemical structure

CAS: 42370-41-2
Formula: C₁₀H₁₈O₂
MW: 170.25 g/mol

VQ-035057

Reference Standard

Trans-Stilbene Oxide chemical structure

Trans-Stilbene Oxide

CAS: 1439-07-2
Formula: C₁₄H₁₂O
MW: 196.24 g/mol

VQ-041053

Reference Standard

trans-Tetrabenazine chemical structure

trans-Tetrabenazine

CAS: 1381929-92-5
Formula: C₁₉H₂₇NO₃
MW: 317.4 g/mol

VQ-034163

Reference Standard

trans,cis-1,2,4-Trimethylcyclopentane chemical structure

trans,cis-1,2,4-Trimethylcyclopentane

CAS: 16883-48-0
Formula: C₈H₁₆
MW: 112.21 g/mol

VQ-040446

Reference Standard

trans,trans-1,5-Diphenylpenta-1,4-dien-3-one chemical structure

trans,trans-1,5-Diphenylpenta-1,4-dien-3-one

CAS: 35225-79-7
Formula: C₁₇H₁₄O
MW: 234.29 g/mol

VQ-039305

Reference Standard

trans,trans-Muconic Acid chemical structure

trans,trans-Muconic Acid

CAS: 3588-17-8
Formula: C₆H₆O₄
MW: 142.11 g/mol

VQ-038899

Reference Standard

Tranylcypromine chemical structure

Tranylcypromine

CAS: 155-09-9
Formula: C₉H₁₁N
MW: 133.19 g/mol

VQ-043336

Reference Standard

Tranylcypromine Sulphate chemical structure

Tranylcypromine Sulphate

CAS: 13492-01-8
Formula: C₁₈H₂₄N₂O₄S
MW: 364.5 g/mol

VQ-034388

Reference Standard

Trastuzumab

CAS: 180288-69-1
Formula: -

VQ-042652

Reference Standard

Travoprost 15-epi Diastereomer chemical structure

Travoprost 15-epi Diastereomer

CAS: 1420791-14-5
Formula: C₂₆H₃₅F₃O₆
MW: 500.5 g/mol

VQ-023931

Reference Standard

Travoprost 5,6-Trans Isomer chemical structure

Travoprost 5,6-Trans Isomer

CAS: 1563176-59-9
Formula: C₂₆H₃₅F₃O₆
MW: 500.5 g/mol

VQ-023929

Reference Standard

Travoprost Acid chemical structure

Travoprost Acid

CAS: 54276-17-4
Formula: C₂₃H₂₉F₃O₆
MW: 458.5 g/mol

VQ-023930

Reference Standard

Trazodone 1,4-Di-N-Oxide chemical structure

Trazodone 1,4-Di-N-Oxide

CAS: 1346603-99-3
Formula: C₁₉H₂₂ClN₅O₃
MW: 403.9 g/mol

VQ-028481

Reference Standard

Trazodone BP Impurity D chemical structure

Trazodone BP Impurity D

CAS: 1263278-80-3
Formula: C₁₉H₂₃BrClN₅O
MW: 452.8 g/mol

VQ-034398

Reference Standard

Trazodone EP Impurity A (HCl Salt) chemical structure

Trazodone EP Impurity A (HCl Salt)

CAS: 55290-66-9
Formula: C₁₉H₂₃Cl₂N₅O₂
MW: 424.3 g/mol

VQ-043337

Reference Standard

Trazodone EP Impurity B chemical structure

Trazodone EP Impurity B

CAS: 62337-66-0
Formula: C₁₉H₂₃N₅O
MW: 337.4 g/mol

VQ-028482

Reference Standard

Trazodone EP Impurity C chemical structure

Trazodone EP Impurity C

CAS: 157072-19-0
Formula: C₁₉H₂₂ClN₅O
MW: 371.9 g/mol

VQ-028487

Reference Standard

Trazodone EP Impurity C Hydrochloride chemical structure

Trazodone EP Impurity C Hydrochloride

CAS: 1263278-77-8
Formula: C₁₉H₂₃Cl₂N₅O
MW: 408.3 g/mol

VQ-034396

Reference Standard

Trazodone EP Impurity D chemical structure

Trazodone EP Impurity D

CAS: 1263358-13-9
Formula: C₁₉H₂₂BrN₅O
MW: 416.3 g/mol

VQ-034397

Reference Standard

Trazodone EP Impurity E chemical structure

Trazodone EP Impurity E

CAS: 1346599-35-6
Formula: C₂₁H₂₆ClN₅O
MW: 399.9 g/mol

VQ-028483

Reference Standard

Trazodone EP Impurity F Hydrochloride chemical structure

Trazodone EP Impurity F Hydrochloride

CAS: 52605-52-4
Formula: C₁₃H₁₉Cl₃N₂
MW: 309.7 g/mol

VQ-034399

Reference Standard

Trazodone EP Impurity G chemical structure

Trazodone EP Impurity G

CAS: 2470436-00-9
Formula: C₁₇H₂₇ClN₂O
MW: 310.9 g/mol

VQ-034400

Reference Standard

Trazodone EP Impurity G (HCl Salt) chemical structure

Trazodone EP Impurity G (HCl Salt)

CAS: 2470441-00-8
Formula: C₁₇H₂₈Cl₂N₂O
MW: 347.3 g/mol

VQ-034394

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