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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.

28,554products

6sub-categories

2,746in stock

COA + SDSwith every lot

API Impurities 14,252 Pharmacopeial Impurities (EP / USP / BP) 4,401 Nitrosamine Impurities 650 Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612 Metabolites & Degradation Products 4,146 API Reference Standards 3,493

Reference Standard

Flavoxate Hydrochloride chemical structure

Flavoxate Hydrochloride

CAS: 3717-88-2
Formula: C₂₄H₂₆ClNO₄
MW: 427.9 g/mol

VQ-025799

Reference Standard

Flavoxate Hydrochloride EP Impurity B chemical structure

Flavoxate Hydrochloride EP Impurity B

CAS: 35888-94-9
Formula: C₁₉H₁₆O₄
MW: 308.3 g/mol

VQ-025800

Reference Standard

Flavoxate-d4 Hydrochloride chemical structure

Flavoxate-d4 Hydrochloride

CAS: 1189678-43-0
Formula: C₂₄H₂₆ClNO₄
MW: 431.9 g/mol

VQ-037298

Reference Standard

Flecainide chemical structure

CAS: 54143-55-4
Formula: C₁₇H₂₀F₆N₂O₃
MW: 414.34 g/mol

VQ-034963

Reference Standard

Flecainide Acetate chemical structure

Flecainide Acetate

CAS: 54143-56-5
Formula: C₁₉H₂₄F₆N₂O₅
MW: 474.4 g/mol

VQ-025802

Reference Standard

Flecainide Acetate EP Impurity B chemical structure

Flecainide Acetate EP Impurity B

CAS: 22990-77-8
Formula: C₆H₁₄N₂
MW: 114.19 g/mol

VQ-022651

Reference Standard

Flecainide Acetate EP Impurity E chemical structure

Flecainide Acetate EP Impurity E

CAS: 57415-36-8
Formula: C₁₇H₁₄F₆N₂O₃
MW: 408.29 g/mol

VQ-022652

Reference Standard

Flecainide D3 chemical structure

CAS: 127413-31-4
Formula: C₁₇H₂₀F₆N₂O₃
MW: 417.36 g/mol

VQ-030758

Reference Standard

Flecainide D4 acetate chemical structure

Flecainide D4 acetate

CAS: 1276197-21-7
Formula: C₁₉H₂₄F₆N₂O₅
MW: 478.4 g/mol

VQ-037302

Reference Standard

Flecainide EP Impurity A

Flecainide EP Impurity A

CAS: 3093141-68-2
Formula: C₁₇H₁₈F₆N₂O₂
MW: 396.33 g/mol

VQ-048399

Reference Standard

Flecainide EP Impurity C chemical structure

Flecainide EP Impurity C

CAS: 152171-74-9
Formula: C₁₇H₂₀F₆N₂O₄
MW: 430.34 g/mol

VQ-022653

Reference Standard

Flecainide EP Impurity D chemical structure

Flecainide EP Impurity D

CAS: 35480-52-5
Formula: C₁₁H₈F₆O₄
MW: 318.17 g/mol

VQ-022650

Reference Standard

Flecainide Meta-O-dealkylated chemical structure

Flecainide Meta-O-dealkylated

CAS: 83526-33-4
Formula: C₁₅H₁₉F₃N₂O₃
MW: 332.32 g/mol

VQ-037301

Reference Standard

Flecainide N-acetyl chemical structure

Flecainide N-acetyl

CAS: 285143-14-8
Formula: C₁₉H₂₂F₆N₂O₄
MW: 456.4 g/mol

VQ-030757

Reference Standard

Flecainide-d4 chemical structure

CAS: 1276197-20-6
Formula: C₁₇H₂₀F₆N₂O₃
MW: 418.37 g/mol

VQ-025804

Reference Standard

Fleroxacin chemical structure

CAS: 79660-72-3
Formula: C₁₇H₁₈F₃N₃O₃
MW: 369.34 g/mol

VQ-037303

Reference Standard

Flibanserin chemical structure

CAS: 167933-07-5
Formula: C₂₀H₂₁F₃N₄O
MW: 390.4 g/mol

VQ-025805

Reference Standard

Flibanserin D4 Hydrochloride chemical structure

Flibanserin D4 Hydrochloride

CAS: 2748630-46-6
Formula: C₂₀H₂₂ClF₃N₄O
MW: 430.9 g/mol

VQ-048401

Reference Standard

Flibanserin EP Impurity C

Flibanserin EP Impurity C

CAS: 231632-18-1
Formula: C₂₀H₂₂N₄O₃
MW: 366.42 g/mol

VQ-048400

Reference Standard

Flibanserin N-Oxide chemical structure

Flibanserin N-Oxide

CAS: 2652583-35-0
Formula: C₂₀H₂₁F₃N₄O₂
MW: 406.4 g/mol

VQ-037304

Reference Standard

Flocoumafen chemical structure

CAS: 90035-08-8
Formula: C₃₃H₂₅F₃O₄
MW: 542.5 g/mol

VQ-037307

Reference Standard

Floctafenine chemical structure

CAS: 23779-99-9
Formula: C₂₀H₁₇F₃N₂O₄
MW: 406.4 g/mol

VQ-037308

Reference Standard

Flomoxef chemical structure

CAS: 99665-00-6
Formula: C₁₅H₁₈F₂N₆O₇S₂
MW: 496.5 g/mol

VQ-043173

Reference Standard

Flomoxef Sodium chemical structure

Flomoxef Sodium

CAS: 92823-03-5
Formula: C₁₅H₁₇F₂N₆NaO₇S₂
MW: 518.5 g/mol

VQ-037309

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