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Pharmacopeial Impurities (EP / USP / BP)

Dexamethasone EP impurity C

Reference StandardAvailable on request

Dexamethasone EP impurity C (CAS 426-17-5) supplier Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Dexamethasone EP impurity C chemical structure
CAS number426-17-5
FormulaC22H31FO5
Molar mass394.5 g/mol
Physical formSolid
HS code38229090
InChIKeyYYZXYYHUGHQGHI-CXSFZGCWSA-N
IUPAC name(8S,9R,10S,11S,13S,14S,16R,17R)-9-fluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one

About Dexamethasone EP impurity C

Dexamethasone EP impurity C belongs to the Dexamethasone reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 426-17-5, formula C22H31FO5 and molar mass 394.5 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Safe handling

Hazard communication follows GHS (Warning: H302 and H373). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Dexamethasone

See every impurity, metabolite and related compound we list for this API.

Dexamethasone standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Dexamethasone EP impurity C
Product nameDexamethasone EP impurity C
Catalogue numberZX-021371
CAS number426-17-5
IUPAC name(8S,9R,10S,11S,13S,14S,16R,17R)-9-fluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one
Molecular formulaC22H31FO5
Molar mass394.5 g/mol
Exact mass394.2156
GradeReference Standard
Physical formSolid
XLogP31.7
H-bond donors / acceptors3 / 6
Topological polar surface area94.8 Ų
HS code38229090
InChIKeyYYZXYYHUGHQGHI-CXSFZGCWSA-N
SMILESC[C@@H]1C[C@H]2[C@@H]3CCC4=CC(=O)CC[C@@]4([C@]3([C@H](C[C@@]2([C@]1(C(=O)CO)O)C)O)F)C
PubChem CID22792547
SynonymsDexamethasone - Impurity C, 1,2-Dihydro Dexamethasone, 9-Fluoro-11beta,17,21-trihydroxy-16alpha-methylpregn-4-ene-3,20-dione, Pregn-4-ene-3,20-dione, 9-fluoro-11beta,17,21-trihydroxy-16alpha-methyl-, Pregn-4-ene-3,20-dione, 9-fluoro-11,17,21-trihydroxy-16-methyl-, (11beta,16alpha)-, (11beta,16alpha)-9-Fluoro-11,17,21-trihydroxy-16-methylpregn-4-ene-3,20-dione, US10188667, Dexamethasone, (11, A,16, A)-9-Fluoro-11,17,21-trihydroxy-16-methylpregn-4-ene-3,20-dione, 9-Fluoro-11,17,21-trihydroxy-16-methylpregn-4-ene-3,20-dione

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Warning

  • H302Harmful if swallowed
  • H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements P260, P264, P270, P301 + P317, P319, P330, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Dexamethasone EP impurity C
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Dexamethasone EP impurity C

Which CAS number identifies Dexamethasone EP impurity C?
Dexamethasone EP impurity C is registered under CAS 426-17-5. You may also see it listed as Dexamethasone - Impurity C, 1,2-Dihydro Dexamethasone, 9-Fluoro-11beta,17,21-trihydroxy-16alpha-methylpregn-4-ene-3,20-dione. Our catalogue number for this item is ZX-021371.
What are the formula and molar mass of Dexamethasone EP impurity C?
For Dexamethasone EP impurity C, its formula is C22H31FO5 and its molar mass is 394.5 g/mol. InChIKey YYZXYYHUGHQGHI-CXSFZGCWSA-N lets you match it in any structure database.
How is Dexamethasone EP impurity C used in pharmaceutical QC?
Dexamethasone EP impurity C is a characterised reference material linked to Dexamethasone. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Dexamethasone EP impurity C?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Dexamethasone EP impurity C?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Dexamethasone EP impurity C to my country?
Yes. Because Dexamethasone EP impurity C is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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