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API Impurities

Paramethasone

Reference StandardAvailable on request

Order Paramethasone (CAS 53-33-8) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Exported from India with full paperwork.

Pack sizes
Paramethasone chemical structure
CAS number53-33-8
FormulaC22H29FO5
Molar mass392.5 g/mol
Physical formSolid
HS code38229090
InChIKeyMKPDWECBUAZOHP-AFYJWTTESA-N
IUPAC name(6S,8S,9S,10R,11S,13S,14S,16R,17R)-6-fluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one

About Paramethasone

Paramethasone is supplied by Zemixal as a characterised reference material for Dexamethasone analysis. Identity at a glance (Reference Standard): CAS 53-33-8, formula C22H29FO5 and molar mass 392.5 g/mol. It is handled as a solid.

Use cases we see most often

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Dexamethasone

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

Dexamethasone standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of Paramethasone
Product nameParamethasone
Catalogue numberZX-031738
CAS number53-33-8
IUPAC name(6S,8S,9S,10R,11S,13S,14S,16R,17R)-6-fluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one
Molecular formulaC22H29FO5
Molar mass392.5 g/mol
Exact mass392.1999
GradeReference Standard
Physical formSolid
XLogP32
H-bond donors / acceptors3 / 6
Topological polar surface area94.8 Ų
HS code38229090
InChIKeyMKPDWECBUAZOHP-AFYJWTTESA-N
SMILESC[C@@H]1C[C@H]2[C@@H]3C[C@@H](C4=CC(=O)C=C[C@@]4([C@H]3[C@H](C[C@@]2([C@]1(C(=O)CO)O)C)O)C)F
PubChem CID5875
SynonymsFlumethone, Paramezone, Parametasone, 16alpha-Methyl-6alpha-fluoroprednisolone, 6alpha-Fluoro-16alpha-methylprednisolone, Pregna-1,4-diene-3,20-dione, 6alpha-fluoro-11beta,17,21-trihydroxy-16alpha-methyl-, Parametasone [DCIT], (6alpha,11beta,16alpha)-6-fluoro-11,17,21-trihydroxy-16-methylpregna-1,4-diene-3,20-dione, 6alpha-Fluoro-11beta,17,21-trihydroxy-16alpha-methylpregna-1,4-diene-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

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Paramethasone
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 Paramethasone

Which CAS number identifies Paramethasone?
Paramethasone is registered under CAS 53-33-8. You may also see it listed as Flumethone, Paramezone, Parametasone. Our catalogue number for this item is ZX-031738.
What are the formula and molar mass of Paramethasone?
For Paramethasone, its formula is C22H29FO5 and its molar mass is 392.5 g/mol. InChIKey MKPDWECBUAZOHP-AFYJWTTESA-N lets you match it in any structure database.
How is Paramethasone used in pharmaceutical QC?
Paramethasone 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 Paramethasone?
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 Paramethasone?
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 Paramethasone to my country?
Yes. Paramethasone ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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