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API Impurities

(20S)-21-Hydroxy-20-methylpregn-4-en-3-one

Reference StandardAvailable on request

Buy (20S)-21-Hydroxy-20-methylpregn-4-en-3-one (CAS 40736-33-2) from Zemixal: C22H34O2, COA and SDS with every lot, worldwide shipping.

Pack sizes
(20S)-21-Hydroxy-20-methylpregn-4-en-3-one chemical structure
CAS number40736-33-2
FormulaC22H34O2
Molar mass330.5 g/mol
Physical formSolid
HS code38229090
InChIKeyZNWOYQVXPIEQRC-HOFZUOGSSA-N
IUPAC name(8S,9S,10R,13S,14S,17R)-17-[(2S)-1-hydroxypropan-2-yl]-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one

About (20S)-21-Hydroxy-20-methylpregn-4-en-3-one

Zemixal lists (20S)-21-Hydroxy-20-methylpregn-4-en-3-one for laboratories that identify, quantify or control Progesterone and its related substances. Key data (Reference Standard): CAS 40736-33-2, formula C22H34O2 and molar mass 330.5 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

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. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Progesterone

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

Progesterone standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of (20S)-21-Hydroxy-20-methylpregn-4-en-3-one
Product name(20S)-21-Hydroxy-20-methylpregn-4-en-3-one
Catalogue numberZX-026548
CAS number40736-33-2
IUPAC name(8S,9S,10R,13S,14S,17R)-17-[(2S)-1-hydroxypropan-2-yl]-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
Molecular formulaC22H34O2
Molar mass330.5 g/mol
Exact mass330.2559
GradeReference Standard
Physical formSolid
XLogP34.7
H-bond donors / acceptors1 / 2
Topological polar surface area37.3 Ų
HS code38229090
InChIKeyZNWOYQVXPIEQRC-HOFZUOGSSA-N
SMILESC[C@H](CO)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=CC(=O)CC[C@]34C)C
PubChem CID11142115
Synonyms(20S)-20-hydroxymethylpregn-4-en-3-one, 22-hydroxy -23,24-bisnorchol-4-en-3-one

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 (20S)-21-Hydroxy-20-methylpregn-4-en-3-one
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 (20S)-21-Hydroxy-20-methylpregn-4-en-3-one

Which CAS number identifies (20S)-21-Hydroxy-20-methylpregn-4-en-3-one?
(20S)-21-Hydroxy-20-methylpregn-4-en-3-one is registered under CAS 40736-33-2. You may also see it listed as (20S)-20-hydroxymethylpregn-4-en-3-one, 22-hydroxy -23,24-bisnorchol-4-en-3-one. Our catalogue number for this item is ZX-026548.
What are the formula and molar mass of (20S)-21-Hydroxy-20-methylpregn-4-en-3-one?
For (20S)-21-Hydroxy-20-methylpregn-4-en-3-one, its formula is C22H34O2 and its molar mass is 330.5 g/mol. The systematic (IUPAC) name is (8S,9S,10R,13S,14S,17R)-17-[(2S)-1-hydroxypropan-2-yl]-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one. InChIKey ZNWOYQVXPIEQRC-HOFZUOGSSA-N lets you match it in any structure database.
How is (20S)-21-Hydroxy-20-methylpregn-4-en-3-one used in pharmaceutical QC?
(20S)-21-Hydroxy-20-methylpregn-4-en-3-one is a characterised reference material linked to Progesterone. 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 (20S)-21-Hydroxy-20-methylpregn-4-en-3-one?
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 (20S)-21-Hydroxy-20-methylpregn-4-en-3-one?
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 (20S)-21-Hydroxy-20-methylpregn-4-en-3-one to my country?
Yes. (20S)-21-Hydroxy-20-methylpregn-4-en-3-one ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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