(5a)-Pregnane-3,20-dione

Name: (5a)-Pregnane-3,20-dione
Brand: Zemixal
SKU: ZX-031834

Reference StandardAvailable on request

Order (5a)-Pregnane-3,20-dione (CAS 566-65-4) online at Zemixal: C21H32O2, COA and SDS with every lot, worldwide shipping.

Pack sizes

(5a)-Pregnane-3,20-dione chemical structure

CAS number566-65-4

FormulaC₂₁H₃₂O₂

Molar mass316.5 g/mol

Physical formSolid

HS code38229090

InChIKeyXMRPGKVKISIQBV-BJMCWZGWSA-N

IUPAC name(5S,8R,9S,10S,13S,14S,17S)-17-acetyl-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one

About (5a)-Pregnane-3,20-dione

(5a)-Pregnane-3,20-dione belongs to the Progesterone reference-standard family in the Zemixal catalogue. Identity at a glance (Reference Standard): CAS 566-65-4, formula C21H32O2 and molar mass 316.5 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

Safe handling

It carries the GHS signal word Warning (H302, H312, H332 and H351), so wear gloves and eye protection and work with good ventilation.

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. Request pricing online and we confirm availability, documentation and freight to your country.

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 QC Research Labs and Universities

Specifications and identifiers

Specifications of (5a)-Pregnane-3,20-dione
Product name	(5a)-Pregnane-3,20-dione
Catalogue number	ZX-031834
CAS number	566-65-4
IUPAC name	(5S,8R,9S,10S,13S,14S,17S)-17-acetyl-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one
Molecular formula	C₂₁H₃₂O₂
Molar mass	316.5 g/mol
Exact mass	316.2402
Grade	Reference Standard
Physical form	Solid
XLogP3	4.4
H-bond donors / acceptors	0 / 2
Topological polar surface area	34.1 Å²
HS code	38229090
InChIKey	XMRPGKVKISIQBV-BJMCWZGWSA-N
SMILES	CC(=O)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC[C@@H]4[C@@]3(CCC(=O)C4)C)C
PubChem CID	92810
Synonyms	5alpha-Pregnane-3,20-dione, 3,20-Allopregnanedione, 5-alpha-Dihydroprogesterone, 5alpha-Dihydroprogesterone, 3,20-Dioxo-5alpha-pregnane, 5alpha DHP, 5alpha-DHP, 5beta DHP, 5beta-DHP, 5-alpha-Pregnanedione

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

Safety and GHS hazards

Irritant or harmful

Health hazard

Signal word Warning

H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H351Suspected of causing cancer
H361Suspected of damaging fertility or the unborn child

Precautionary statements P203, P261, P264, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P317, P318, P321, P330, 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 (5a)-Pregnane-3,20-dione
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about (5a)-Pregnane-3,20-dione

Which CAS number identifies (5a)-Pregnane-3,20-dione?

(5a)-Pregnane-3,20-dione is registered under CAS 566-65-4. You may also see it listed as 5alpha-Pregnane-3,20-dione, 3,20-Allopregnanedione, 5-alpha-Dihydroprogesterone. Our catalogue number for this item is ZX-031834.

What are the formula and molar mass of (5a)-Pregnane-3,20-dione?

For (5a)-Pregnane-3,20-dione, its formula is C21H32O2 and its molar mass is 316.5 g/mol. The systematic (IUPAC) name is (5S,8R,9S,10S,13S,14S,17S)-17-acetyl-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one. InChIKey XMRPGKVKISIQBV-BJMCWZGWSA-N lets you match it in any structure database.

How is (5a)-Pregnane-3,20-dione used in pharmaceutical QC?

(5a)-Pregnane-3,20-dione 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 (5a)-Pregnane-3,20-dione?

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 (5a)-Pregnane-3,20-dione?

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 (5a)-Pregnane-3,20-dione to my country?

Yes. Because (5a)-Pregnane-3,20-dione 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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