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API Impurities

(5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal)

Reference StandardAvailable on request

Order (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal) (CAS 39931-87-8) online at Zemixal…

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(5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal) chemical structure
CAS number39931-87-8
FormulaC20H26O4
Molar mass330.4 g/mol
Physical formSolid
HS code38229090
InChIKeyBAMMJXIMVWLRCU-YAUBAPCASA-N
IUPAC name(1'R,5'S,9'S,10'S,13'R)-5'-methylspiro[1,3-dioxolane-2,15'-18-oxapentacyclo[11.4.1.01,13.02,10.05,9]octadec-2-ene]-6'-one

About (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal)

(5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal) belongs to the Mifepristone reference-standard family in the Zemixal catalogue. Key data (Reference Standard): CAS 39931-87-8, formula C20H26O4 and molar mass 330.4 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Storage and safety notes

Hazard communication follows GHS (Warning: H302, H317, H319 and H332). 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 Mifepristone

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

Mifepristone standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal)
Product name(5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal)
Catalogue numberZX-045040
CAS number39931-87-8
IUPAC name(1'R,5'S,9'S,10'S,13'R)-5'-methylspiro[1,3-dioxolane-2,15'-18-oxapentacyclo[11.4.1.01,13.02,10.05,9]octadec-2-ene]-6'-one
Molecular formulaC20H26O4
Molar mass330.4 g/mol
Exact mass330.1831
GradeReference Standard
Physical formSolid
XLogP31.1
H-bond donors / acceptors0 / 4
Topological polar surface area48.1 Ų
HS code38229090
InChIKeyBAMMJXIMVWLRCU-YAUBAPCASA-N
SMILESC[C@]12CC=C3[C@H]([C@@H]1CCC2=O)CC[C@@]45[C@@]3(O4)CCC6(C5)OCCO6
PubChem CID10735192

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
  • H317May cause an allergic skin reaction
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H373May causes damage to organs through prolonged or repeated exposure
  • H413May cause long lasting harmful effects to aquatic life

Precautionary statements P260, P261, P264, P264 + P265, P270, P271, P272, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P333 + P317, P337 + P317, P362 + P364, 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 (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal)
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 (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal)

Which CAS number identifies (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal)?
(5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal) is registered under CAS 39931-87-8. Our catalogue number for this item is ZX-045040.
What are the formula and molar mass of (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal)?
For (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal), its formula is C20H26O4 and its molar mass is 330.4 g/mol. The systematic (IUPAC) name is (1'R,5'S,9'S,10'S,13'R)-5'-methylspiro[1,3-dioxolane-2,15'-18-oxapentacyclo[11.4.1.01,13.02,10.05,9]octadec-2-ene]-6'-one. InChIKey BAMMJXIMVWLRCU-YAUBAPCASA-N lets you match it in any structure database.
How is (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal) used in pharmaceutical QC?
(5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal) is a characterised reference material linked to Mifepristone. 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 (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal)?
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 (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal)?
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 (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal) to my country?
Yes. Because (5α,10α)-5,10-Epoxy-estr-9(11)-ene-3,17-dione Cyclic 3-(1,2-Ethanediyl Acetal) 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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