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API Reference Standards

Ethisterone

Reference StandardAvailable on request

Ethisterone (CAS 434-03-7) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Part of our API Reference Standards range.

Pack sizes
Ethisterone chemical structure
CAS number434-03-7
FormulaC21H28O2
Molar mass312.4 g/mol
Physical formSolid
HS code38229090
InChIKeyCHNXZKVNWQUJIB-CEGNMAFCSA-N
IUPAC name(8R,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one

About Ethisterone

Zemixal lists Ethisterone for laboratories that identify, quantify or control Ethisterone and its related substances. For your records (Reference Standard), the material is defined by CAS 434-03-7, formula C21H28O2 and molar mass 312.4 g/mol. It is handled as a solid.

Where it is used

  • Identification & assay
  • Method development & validation
  • QC reference material

Safe handling

Classified under GHS with signal word Danger and hazard statements H360. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Each lot travels with a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Ethisterone

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

Ethisterone standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Specifications and identifiers

Specifications of Ethisterone
Product nameEthisterone
Catalogue numberZX-029378
CAS number434-03-7
IUPAC name(8R,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one
Molecular formulaC21H28O2
Molar mass312.4 g/mol
Exact mass312.2089
GradeReference Standard
Physical formSolid
XLogP33.5
H-bond donors / acceptors1 / 2
Topological polar surface area37.3 Ų
HS code38229090
InChIKeyCHNXZKVNWQUJIB-CEGNMAFCSA-N
SMILESC[C@]12CCC(=O)C=C1CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@]4(C#C)O)C
PubChem CID5284557
SynonymsNugestoral, Trosinone, Pregneninolone, Ora-Lutin, Ethynyltestosterone, 17alpha-Ethynyltestosterone, Anhydrohydroxyprogesterone, Anhydroxyprogesterone, Pranone, Etisterone, Progestoral, 17alpha-Ethinyltestosterone

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

Safety and GHS hazards

GHS08 Health hazard
Health hazard

Signal word Danger

  • H360May damage fertility or the unborn child

Precautionary statements P203, P280, P318, 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 Ethisterone
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 Ethisterone

Which CAS number identifies Ethisterone?
Ethisterone is registered under CAS 434-03-7. You may also see it listed as Nugestoral, Trosinone, Pregneninolone. Our catalogue number for this item is ZX-029378.
What are the formula and molar mass of Ethisterone?
For Ethisterone, its formula is C21H28O2 and its molar mass is 312.4 g/mol. The systematic (IUPAC) name is (8R,9S,10R,13S,14S,17R)-17-ethynyl-17-hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one. InChIKey CHNXZKVNWQUJIB-CEGNMAFCSA-N lets you match it in any structure database.
How is Ethisterone used in pharmaceutical QC?
Ethisterone is a characterised reference material linked to Ethisterone. 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 Ethisterone?
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 Ethisterone?
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 Ethisterone to my country?
Yes. Because Ethisterone 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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