Equilenin

Name: Equilenin
Brand: Zemixal
SKU: ZX-006538

Reference StandardIn stock

Equilenin (CAS 517-09-9) supplier Zemixal: C18H18O2, COA and SDS with every lot, worldwide shipping. Part of our API Reference Standards range.

Pack sizes

CAS number517-09-9

FormulaC₁₈H₁₈O₂

Molar mass266.3 g/mol

Physical formSolid

HS code38229090

Purity97%

InChIKeyPDRGHUMCVRDZLQ-WMZOPIPTSA-N

IUPAC name(13S,14S)-3-hydroxy-13-methyl-12,14,15,16-tetrahydro-11H-cyclopenta[a]phenanthren-17-one

About Equilenin

Equilenin belongs to the Equilenin reference-standard family in the Zemixal catalogue. Key data (Reference Standard): CAS 517-09-9, formula C18H18O2 and molar mass 266.3 g/mol. It is handled as a solid.

Use cases we see most often

Identification & assay
Method development & validation
QC reference material

Safe handling

Hazard communication follows GHS (Warning: H351). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Equilenin

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

Equilenin standards

Typical uses

Identification & assay
Method development & validation
QC reference material

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of Equilenin
Product name	Equilenin
Catalogue number	ZX-006538
CAS number	517-09-9
IUPAC name	(13S,14S)-3-hydroxy-13-methyl-12,14,15,16-tetrahydro-11H-cyclopenta[a]phenanthren-17-one
Molecular formula	C₁₈H₁₈O₂
Molar mass	266.3 g/mol
Exact mass	266.1307
Grade	Reference Standard
Purity / assay	97%
Physical form	Solid
XLogP3	3.5
H-bond donors / acceptors	1 / 2
Topological polar surface area	37.3 Å²
HS code	38229090
InChIKey	PDRGHUMCVRDZLQ-WMZOPIPTSA-N
SMILES	C[C@]12CCC3=C([C@@H]1CCC2=O)C=CC4=C3C=CC(=C4)O
PubChem CID	444865
Synonyms	3-Hydroxyestra-1,3,5,7,9-pentaen-17-one, 3-Hydroxyestra-1,3,5(10),6,8-pentaen-17-one, d-Equilenin, (+)-Equilenin, Equilenine, Estra-1,3,5,7,9-pentaen-17-one, 3-hydroxy-, 3-hydroxy-estra-1,3,5(10),6,8-pentaen-17-one, Estra-1,3,5(10),6,8-pentaen-17-one, 3-hydroxy-, 1ogx, 1ogz, 6,8-didehydroestrone, 1w6y

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

Safety and GHS hazards

Health hazard

Signal word Warning

H351Suspected of causing cancer

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 Equilenin
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 Equilenin

Which CAS number identifies Equilenin?

Equilenin is registered under CAS 517-09-9. You may also see it listed as 3-Hydroxyestra-1,3,5,7,9-pentaen-17-one, 3-Hydroxyestra-1,3,5(10),6,8-pentaen-17-one, d-Equilenin. Our catalogue number for this item is ZX-006538.

What are the formula and molar mass of Equilenin?

For Equilenin, its formula is C18H18O2 and its molar mass is 266.3 g/mol. The systematic (IUPAC) name is (13S,14S)-3-hydroxy-13-methyl-12,14,15,16-tetrahydro-11H-cyclopenta[a]phenanthren-17-one. InChIKey PDRGHUMCVRDZLQ-WMZOPIPTSA-N lets you match it in any structure database.

How is Equilenin used in pharmaceutical QC?

Equilenin is a characterised reference material linked to Equilenin. 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 Equilenin?

This listing is Reference Standard grade with 97% purity. 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 Equilenin?

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 Equilenin to my country?

Yes. Because Equilenin 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.

More Equilenin standards

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