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Metabolites & Degradation Products

N-Desmethyl Mifepristone

Reference StandardAvailable on request

Buy N-Desmethyl Mifepristone (CAS 104004-96-8) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
N-Desmethyl Mifepristone chemical structure
CAS number104004-96-8
FormulaC28H33NO2
Molar mass415.6 g/mol
Physical formSolid
HS code38229090
InChIKeyIBLXOBHABOVXDY-WKWWZUSTSA-N
IUPAC name(8S,11R,13S,14S,17S)-17-hydroxy-13-methyl-11-[4-(methylamino)phenyl]-17-prop-1-ynyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one

About N-Desmethyl Mifepristone

N-Desmethyl Mifepristone belongs to the Mifepristone reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 104004-96-8, formula C28H33NO2 and molar mass 415.6 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling

Safe handling

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

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

Reference standards for Mifepristone

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

Mifepristone standards

Typical uses

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of N-Desmethyl Mifepristone
Product nameN-Desmethyl Mifepristone
Catalogue numberZX-023089
CAS number104004-96-8
IUPAC name(8S,11R,13S,14S,17S)-17-hydroxy-13-methyl-11-[4-(methylamino)phenyl]-17-prop-1-ynyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one
Molecular formulaC28H33NO2
Molar mass415.6 g/mol
Exact mass415.2511
GradeReference Standard
Physical formSolid
XLogP33.6
H-bond donors / acceptors2 / 3
Topological polar surface area49.3 Ų
HS code38229090
InChIKeyIBLXOBHABOVXDY-WKWWZUSTSA-N
SMILESCC#C[C@@]1(CC[C@@H]2[C@@]1(C[C@@H](C3=C4CCC(=O)C=C4CC[C@@H]23)C5=CC=C(C=C5)NC)C)O
PubChem CID10070462
SynonymsN-Demethyl Mifepristone, Metapristone, Desmethylmifepristone, N-Desmethyl-RU 486, 17beta-Hydroxy-11beta-(4-(methylamino)-phenyl)-17alpha-(1-propinyl)-estra-4,9-dien-3-one, 17beta-Hydroxy-11beta-[4-(methylamino)-phenyl]-17alpha-(1-propinyl)-estra-4,9-dien-3-one, 17beta-hydroxy-17alpha-propynyl-11beta-(4-N-methylaminophenyl)-estra-4,9-dien-3-one, (11b,17b)-17-Hydroxy-11-[4-(methylamino)phenyl]-17-(1-propyn-1-yl)-estra-4,9-dien-3-one

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

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, 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 N-Desmethyl Mifepristone
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 N-Desmethyl Mifepristone

Which CAS number identifies N-Desmethyl Mifepristone?
N-Desmethyl Mifepristone is registered under CAS 104004-96-8. You may also see it listed as N-Demethyl Mifepristone, Metapristone, Desmethylmifepristone. Our catalogue number for this item is ZX-023089.
What are the formula and molar mass of N-Desmethyl Mifepristone?
For N-Desmethyl Mifepristone, its formula is C28H33NO2 and its molar mass is 415.6 g/mol. The systematic (IUPAC) name is (8S,11R,13S,14S,17S)-17-hydroxy-13-methyl-11-[4-(methylamino)phenyl]-17-prop-1-ynyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one. InChIKey IBLXOBHABOVXDY-WKWWZUSTSA-N lets you match it in any structure database.
How is N-Desmethyl Mifepristone used in pharmaceutical QC?
N-Desmethyl Mifepristone 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 N-Desmethyl Mifepristone?
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 N-Desmethyl Mifepristone?
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 N-Desmethyl Mifepristone to my country?
Yes. Because N-Desmethyl Mifepristone 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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