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Impurity Reference Standards

Pharmacopoeial impurities, nitrosamines, metabolites, labelled internal standards and API working standards, each backed by analytical data for method development and QC.

20,060 products6 categories2,050 in stockCOA + SDS with every lot

20,060 products · page 458 of 836

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Fenpropimorph

CAS: 67564-91-4
Formula: C₂₀H₃₃NO
MW: 303.5 g/mol

ZX-029478

Fenpyroximate

CAS: 111812-58-9
Formula: C₂₄H₂₇N₃O₄
MW: 421.5 g/mol

ZX-029479

Fenretinide

CAS: 65646-68-6
Formula: C₂₆H₃₃NO₂
MW: 391.5 g/mol

ZX-033457

Fenspiride Descarbonyl Dihydrochloride Impurity

CAS: 23804-64-0
Formula: C₁₄H₂₄Cl₂N₂O
MW: 307.3 g/mol

ZX-039173

Fenspiride Hydrochloride

CAS: 5053-08-7
Formula: C₁₅H₂₁ClN₂O₂
MW: 296.79 g/mol

ZX-033458

Fenspiride N-Oxide

CAS: 210690-26-9
Formula: C₁₅H₂₀N₂O₃
MW: 276.33 g/mol

ZX-029480

Fentanyl EP Impurity A

CAS: 1233011-07-8
Formula: C₂₂H₂₈N₂O₂
MW: 352.5 g/mol

ZX-047816

Fentanyl EP Impurity G

CAS: 620-71-3
Formula: C₉H₁₁NO
MW: 149.19 g/mol

ZX-047819

Fenticonazole EP Impurity B

CAS: 80639-94-7
Formula: C₂₄H₂₀Cl₂N₂O₂S
MW: 471.4 g/mol

ZX-024723

Fenticonazole EP Impurity C

CAS: 80676-28-4
Formula: C₂₄H₂₀Cl₂N₂O₃S
MW: 487.4 g/mol

ZX-024724

Fenticonazole Impurity B Nitrate

CAS: 80639-95-8
Formula: C₂₄H₂₁Cl₂N₃O₅S
MW: 534.4 g/mol

ZX-029482

Fenticonazole Nitrate EP Impurity D

CAS: 1313397-05-5
Formula: C₂₄H₂₁Cl₂N₃O₄S
MW: 518.4 g/mol

ZX-021668

Fenvalerate

CAS: 51630-58-1
Formula: C₂₅H₂₂ClNO₃
MW: 419.9 g/mol

ZX-031037

Fenvalerate-d5

CAS: 1246815-00-8
Formula: C₂₅H₂₂ClNO₃
MW: 424.9 g/mol

ZX-043161

Ferric Maltol

CAS: 33725-54-1
Formula: C₁₈H₁₅FeO₉
MW: 431.2 g/mol

ZX-029483

Ferrous Gluconate Hydrate

CAS: 699014-53-4
Formula: C₁₂H₂₆FeO₁₅
MW: 466.17 g/mol

ZX-018824

Fertirelin Acetate

CAS: 66002-66-2
Formula: C₅₇H₈₀N₁₆O₁₄
MW: 1213.3 g/mol

ZX-044135

Fesoterodine

CAS: 286930-02-7
Formula: C₂₆H₃₇NO₃
MW: 411.6 g/mol

ZX-006550

Fesoterodine

CAS: 84184-18-9
Formula: C₅H₇NO₂S
MW: 145.18 g/mol

ZX-029485

Fesoterodine Aldehyde Of Diol

CAS: 214601-12-4
Formula: C₂₂H₂₉NO₂
MW: 339.5 g/mol

ZX-021670

Fesoterodine Fumarate

CAS: 286930-03-8
Formula: C₃₀H₄₁NO₇
MW: 527.6 g/mol

ZX-006551

Fesoterodine Fumarate Ester

CAS: 1254942-29-4
Formula: C₃₀H₃₉NO₆
MW: 509.6 g/mol

ZX-020282

Fesoterodine Propionate impurity

CAS: 1208313-16-9
Formula: C₂₅H₃₅NO₃
MW: 397.5 g/mol

ZX-029486

Fesoterodinyl (4-Hydroxy-tolterodine phenoxy) Ether

CAS: 1380491-71-3
Formula: C₄₈H₆₆N₂O₄
MW: 735 g/mol

ZX-024728

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