Allopregnanolone

Name: Allopregnanolone
Brand: Zemixal
SKU: ZX-032002

Reference StandardAvailable on request

Order Allopregnanolone (CAS 516-54-1) online at Zemixal. Request a quote with price, lead time and documents. Part of our API Impurities range.

Pack sizes

CAS number516-54-1

FormulaC₂₁H₃₄O₂

Molar mass318.5 g/mol

Physical formSolid

HS code38229090

InChIKeyAURFZBICLPNKBZ-SYBPFIFISA-N

IUPAC name1-[(3R,5S,8R,9S,10S,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanone

About Allopregnanolone

Analytical teams working on Progesterone use Allopregnanolone as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 516-54-1, formula C21H34O2 and molar mass 318.5 g/mol. It is handled as a solid.

Where it is used

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

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 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 Allopregnanolone
Product name	Allopregnanolone
Catalogue number	ZX-032002
CAS number	516-54-1
IUPAC name	1-[(3R,5S,8R,9S,10S,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanone
Molecular formula	C₂₁H₃₄O₂
Molar mass	318.5 g/mol
Exact mass	318.2559
Grade	Reference Standard
Physical form	Solid
XLogP3	4.9
H-bond donors / acceptors	1 / 2
Topological polar surface area	37.3 Å²
HS code	38229090
InChIKey	AURFZBICLPNKBZ-SYBPFIFISA-N
SMILES	CC(=O)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC[C@@H]4[C@@]3(CC[C@H](C4)O)C)C
PubChem CID	92786
Synonyms	Brexanolone, Allotetrahydroprogesterone, 3alpha-hydroxy-5alpha-pregnan-20-one, 3alpha,5alpha-THP, Allopregnan-3alpha-ol-20-one, 3alpha-OH DHP, 3alpha-Hydroxy-5alpha-dihydroprogesterone, DEA NO. 2400, Pregnan-20-one, 3-hydroxy-, (3-alpha,5-alpha)-, alpha-Hydroxy-5 alpha-pregnan-20-one, 3

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 Allopregnanolone
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 Allopregnanolone

Which CAS number identifies Allopregnanolone?

Allopregnanolone is registered under CAS 516-54-1. You may also see it listed as Brexanolone, Allotetrahydroprogesterone, 3alpha-hydroxy-5alpha-pregnan-20-one. Our catalogue number for this item is ZX-032002.

What are the formula and molar mass of Allopregnanolone?

For Allopregnanolone, its formula is C21H34O2 and its molar mass is 318.5 g/mol. The systematic (IUPAC) name is 1-[(3R,5S,8R,9S,10S,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanone. InChIKey AURFZBICLPNKBZ-SYBPFIFISA-N lets you match it in any structure database.

How is Allopregnanolone used in pharmaceutical QC?

Allopregnanolone 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 Allopregnanolone?

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 Allopregnanolone?

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 Allopregnanolone to my country?

Yes. Allopregnanolone ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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