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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

Triamcinolone EP Impurity A chemical structure

Triamcinolone EP Impurity A

CAS: 67-78-7
Formula: C₂₅H₃₁FO₈
MW: 478.5 g/mol

VQ-042665

Reference Standard

Triamcinolone EP Impurity B chemical structure

Triamcinolone EP Impurity B

CAS: 3859-65-2
Formula: C₂₃H₂₉FO₇
MW: 436.5 g/mol

VQ-028502

Reference Standard

Triamcinolone EP Impurity C chemical structure

Triamcinolone EP Impurity C

CAS: 337-02-0
Formula: C₂₁H₂₉FO₆
MW: 396.4 g/mol

VQ-028499

Reference Standard

Triamcinolone Hexacetonide chemical structure

Triamcinolone Hexacetonide

CAS: 5611-51-8
Formula: C₃₀H₄₁FO₇
MW: 532.6 g/mol

VQ-028495

Reference Standard

Triamcinolone Impurity C PG Hemi Acetal

Triamcinolone Impurity C PG Hemi Acetal

CAS: 2196227-63-9
Formula: C₂₇H₃₇FO₈
MW: 508.58 g/mol

VQ-034421

Reference Standard

Triamterene EP Impurity A chemical structure

Triamterene EP Impurity A

CAS: 1006-23-1
Formula: C₄H₆N₆O
MW: 154.13 g/mol

VQ-028506

Reference Standard

Triamterene EP Impurity B chemical structure

Triamterene EP Impurity B

CAS: 19375-89-4
Formula: C₁₂H₁₀N₆O
MW: 254.25 g/mol

VQ-028504

Reference Standard

Triamterene EP Impurity C chemical structure

Triamterene EP Impurity C

CAS: 19152-93-3
Formula: C₁₂H₁₀N₆O
MW: 254.25 g/mol

VQ-028505

Reference Standard

Triamterene Hydrochloride

Triamterene Hydrochloride

CAS: 2218-70-4
Formula: C₁₂H₁₁N₇.ClH
MW: 289.71 g/mol

VQ-007817

Reference Standard

Triamterene WS chemical structure

CAS: 396-01-0
Formula: C₁₂H₁₁N₇
MW: 253.26 g/mol

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Reference Standard

Triamterene-d5 chemical structure

CAS: 1189922-23-3
Formula: C₁₂H₁₁N₇
MW: 258.29 g/mol

VQ-042669

Reference Standard

Triazolam N-Oxide chemical structure

Triazolam N-Oxide

CAS: 96849-15-9
Formula: C₉H₁₄ClNO₂
MW: 203.66 g/mol

VQ-044861

Reference Standard

Triazole lactic acid chemical structure

Triazole lactic acid

CAS: 1450828-63-3
Formula: C₅H₇N₃O₃
MW: 157.13 g/mol

VQ-035260

Reference Standard

Triazole methoxybenzoic acid impurity /DATR1A chemical structure

Triazole methoxybenzoic acid impurity /DATR1A

CAS: 1293284-55-5
Formula: C₁₀H₉N₃O₃
MW: 219.2 g/mol

VQ-047942

Reference Standard

Triazolomethylindole-3-acetic Acid chemical structure

Triazolomethylindole-3-acetic Acid

CAS: 177270-91-6
Formula: C₁₃H₁₂N₄O₂
MW: 256.26 g/mol

VQ-033623

Reference Standard

Tribenoside chemical structure

CAS: 10310-32-4
Formula: C₂₉H₃₄O₆
MW: 478.6 g/mol

VQ-028507

Reference Standard

Tribenoside EP impurity A chemical structure

Tribenoside EP impurity A

CAS: 53928-30-6
Formula: C₃₀H₃₄O₆
MW: 490.6 g/mol

VQ-028508

Reference Standard

Tribenoside EP Impurity B chemical structure

Tribenoside EP Impurity B

CAS: 28713-39-5
Formula: C₂₃H₂₈O₆
MW: 400.5 g/mol

VQ-028509

Reference Standard

Tribulosin chemical structure

CAS: 79974-46-2
Formula: C₅₅H₉₀O₂₅
MW: 1151.3 g/mol

VQ-040519

Reference Standard

Tributyl O-Acetylcitrate chemical structure

Tributyl O-Acetylcitrate

CAS: 77-90-7
Formula: C₂₀H₃₄O₈
MW: 402.5 g/mol

VQ-023936

Reference Standard

Tricagrelor Impurity 1

Tricagrelor Impurity 1

CAS: 376608-68-3
Formula: C₂₀H₂₆F₂O₂
MW: 336.42 g/mol

VQ-042541

Reference Standard

Trichlormethiazide chemical structure

Trichlormethiazide

CAS: 133-67-5
Formula: C₈H₈Cl₃N₃O₄S₂
MW: 380.7 g/mol

VQ-034425

Reference Standard

Trichloromethylpyrimidine chemical structure

Trichloromethylpyrimidine

CAS: 54198-86-6
Formula: C₅H₃Cl₃N₂
MW: 197.45 g/mol

VQ-047970

Reference Standard

Trichodesmine chemical structure

CAS: 548-90-3
Formula: C₁₈H₂₇NO₆
MW: 353.4 g/mol

VQ-034426

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