Impurity reference standards

Fluorometholone impurity standards

Zemixal lists 14 reference materials related to Fluorometholone, covering the drug substance itself, its process impurities and the products it forms on storage. Among them are 1 pharmacopoeial impurity and 3 metabolites or hydroxylated analogues.

14reference materials

1pharmacopoeial

3metabolites

Parent API

Fluorometholone

CAS: 426-13-1
Formula: C₂₂H₂₉FO₄
MW: 376.5 g/mol
Code: ZX-006556

Every standard comes with a certificate of analysis. Structure confirmation data, typically NMR, MS and chromatographic purity, is available on request. Typical uses are method development and validation, relative response factor work, forced degradation studies and the impurity sections of ANDA, DMF or CEP filings.

By impurity type

Pharmacopoeial1EP, USP, BP or JP named impurities

Metabolites3Hydroxy, desmethyl and conjugated forms

Counts are based on product names. One compound can fall into more than one type.

All Fluorometholone reference materials

1–14 of 14 standards

2-((6S,8S,9R,10S,11S,13S,14S,17R)-9-Fluoro-11,17-dihydroxy-6,10,13-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)-2-oxoethyl Methanesulfonate

CAS: 2796-99-8
Formula: C₂₃H₃₁FO₇S
MW: 470.6 g/mol

ZX-029567

6beta-Methyl Fluorometholone

CAS: 3918-13-6
Formula: C₂₂H₂₉FO₄
MW: 376.5 g/mol

ZX-039186

9(11)-Fluorometholone Acetate

CAS: 130145-14-1
Formula: C₂₄H₃₀O₄
MW: 382.5 g/mol

ZX-029566

Corydaline

CAS: 518-69-4
Formula: C₂₂H₂₇NO₄
MW: 369.5 g/mol

ZX-029568

Desmethyl Fluorometholone

CAS: 426-20-0
Formula: C₂₁H₂₇FO₄
MW: 362.4 g/mol

ZX-024798

Fluorometholone

CAS: 426-13-1
Formula: C₂₂H₂₉FO₄
MW: 376.5 g/mol

ZX-006556

Fluorometholone 17-acetate

CAS: 3801-06-7
Formula: C₂₄H₃₁FO₅
MW: 418.5 g/mol

ZX-033477

Fluorometholone 21 hydroxy analogue

CAS: 382-52-5
Formula: C₂₂H₂₉FO₅
MW: 392.5 g/mol

ZX-024800

Fluorometholone Des Acetyl 17-Keto Impurity

CAS: 3868-89-1
Formula: C₁₉H₂₃FO₃
MW: 318.4 g/mol

ZX-024802

Fluorometholone Epoxy Analog

CAS: 83873-17-0
Formula: C₂₄H₃₀O₅
MW: 398.5 g/mol

ZX-024797

Fluorometholone Impurity B

CAS: 83873-16-9
Formula: C₂₂H₂₈O₄
MW: 356.5 g/mol

ZX-024796

Medratriene

CAS: 110664-42-1
Formula: C₂₂H₂₈O₃
MW: 340.5 g/mol

ZX-024799

Medratriene Bromohydrin

CAS: 110664-58-9
Formula: C₂₂H₂₉BrO₄
MW: 437.4 g/mol

ZX-024801

Methylprednisolone EP Impurity L

CAS: 6870-94-6
Formula: C₂₂H₃₀O₄
MW: 358.5 g/mol

ZX-021706

Questions

Fluorometholone impurities, answered

How many Fluorometholone impurity standards does Zemixal list?

The catalogue currently lists 14 compounds for Fluorometholone, including 1 pharmacopoeial impurity and 3 metabolites or hydroxylated analogues. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.

What documents come with a Fluorometholone impurity standard?

A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.

Can Zemixal make a Fluorometholone impurity that is not listed?

Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.

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