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Pharmacopeial Impurities (EP / USP / BP)

Desoximetasone EP Impurity S

Reference StandardAvailable on request

Desoximetasone EP Impurity S (CAS 151265-33-7) supplier Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Desoximetasone EP Impurity S chemical structure
CAS number151265-33-7
FormulaC22H28O4
Molar mass356.5 g/mol
Physical formSolid
HS code38229090
InChIKeyYSIAYLSGHHVHFY-LZJZNGHCSA-N
IUPAC name(1S,2S,11S,13R,14S,15S,17S)-14-(2-hydroxyacetyl)-2,13,15-trimethyl-18-oxapentacyclo[8.8.0.01,17.02,7.011,15]octadeca-3,6-dien-5-one

About Desoximetasone EP Impurity S

Desoximetasone EP Impurity S is supplied by Zemixal as a characterised reference material for Desoximetasone analysis. Key data (Reference Standard): CAS 151265-33-7, formula C22H28O4 and molar mass 356.5 g/mol. It is handled as a solid.

Where it is used

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

Handling and storage

Classified under GHS with signal word Danger and hazard statements H317. Read the SDS before first use.

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

Reference standards for Desoximetasone

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

Desoximetasone 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 Desoximetasone EP Impurity S
Product nameDesoximetasone EP Impurity S
Catalogue numberZX-021366
CAS number151265-33-7
IUPAC name(1S,2S,11S,13R,14S,15S,17S)-14-(2-hydroxyacetyl)-2,13,15-trimethyl-18-oxapentacyclo[8.8.0.01,17.02,7.011,15]octadeca-3,6-dien-5-one
Molecular formulaC22H28O4
Molar mass356.5 g/mol
Exact mass356.1988
GradeReference Standard
Physical formSolid
XLogP32.4
H-bond donors / acceptors1 / 4
Topological polar surface area66.9 Ų
HS code38229090
InChIKeyYSIAYLSGHHVHFY-LZJZNGHCSA-N
SMILESC[C@@H]1C[C@H]2C3CCC4=CC(=O)C=C[C@@]4([C@]35[C@@H](O5)C[C@@]2([C@H]1C(=O)CO)C)C
PubChem CID71316377
SynonymsDesoximetasone Impurity E, 9β,11β Epoxy Desoximetasone, (8xi,9beta,11beta,16alpha)-21-Hydroxy-16-methyl-9,11-epoxypregna-1,4-diene-3,20-dione, (8xi)-21-Hydroxy-16alpha-methyl-9beta,11beta-9,11-epoxypregna-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

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

Signal word Danger

  • H317May cause an allergic skin reaction

Precautionary statements P203, P261, P272, P280, P302 + P352, P318, P321, P333 + P317, P362 + P364, P405, 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 Desoximetasone EP Impurity S
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 Desoximetasone EP Impurity S

Which CAS number identifies Desoximetasone EP Impurity S?
Desoximetasone EP Impurity S is registered under CAS 151265-33-7. You may also see it listed as Desoximetasone Impurity E, 9β,11β Epoxy Desoximetasone, (8xi,9beta,11beta,16alpha)-21-Hydroxy-16-methyl-9,11-epoxypregna-1,4-diene-3,20-dione. Our catalogue number for this item is ZX-021366.
What are the formula and molar mass of Desoximetasone EP Impurity S?
For Desoximetasone EP Impurity S, its formula is C22H28O4 and its molar mass is 356.5 g/mol. The systematic (IUPAC) name is (1S,2S,11S,13R,14S,15S,17S)-14-(2-hydroxyacetyl)-2,13,15-trimethyl-18-oxapentacyclo[8.8.0.01,17.02,7.011,15]octadeca-3,6-dien-5-one. InChIKey YSIAYLSGHHVHFY-LZJZNGHCSA-N lets you match it in any structure database.
How is Desoximetasone EP Impurity S used in pharmaceutical QC?
Desoximetasone EP Impurity S is a characterised reference material linked to Desoximetasone. 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 Desoximetasone EP Impurity S?
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 Desoximetasone EP Impurity S?
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 Desoximetasone EP Impurity S to my country?
Yes. Because Desoximetasone EP Impurity S 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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