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API Impurities

6 Keto Estradiol

Reference StandardAvailable on request

Order 6 Keto Estradiol (CAS 571-92-6) online at Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
6 Keto Estradiol chemical structure
CAS number571-92-6
FormulaC18H22O3
Molar mass286.4 g/mol
Physical formSolid
HS code38229090
InChIKeyZHTDDOWJIRXOMA-YVEZLPLXSA-N
IUPAC name(8R,9S,13S,14S,17S)-3,17-dihydroxy-13-methyl-8,9,11,12,14,15,16,17-octahydro-7H-cyclopenta[a]phenanthren-6-one

About 6 Keto Estradiol

6 Keto Estradiol is supplied by Zemixal as a characterised reference material for Estradiol analysis. Key data (Reference Standard): CAS 571-92-6, formula C18H22O3 and molar mass 286.4 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

Hazard communication follows GHS (Danger: H302, H334, H351 and H360). Our SDS lists exposure controls and first-aid measures.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Estradiol

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

Estradiol standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of 6 Keto Estradiol
Product name6 Keto Estradiol
Catalogue numberZX-024580
CAS number571-92-6
IUPAC name(8R,9S,13S,14S,17S)-3,17-dihydroxy-13-methyl-8,9,11,12,14,15,16,17-octahydro-7H-cyclopenta[a]phenanthren-6-one
Molecular formulaC18H22O3
Molar mass286.4 g/mol
Exact mass286.1569
GradeReference Standard
Physical formSolid
XLogP32.8
H-bond donors / acceptors2 / 3
Topological polar surface area57.5 Ų
HS code38229090
InChIKeyZHTDDOWJIRXOMA-YVEZLPLXSA-N
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2O)CC(=O)C4=C3C=CC(=C4)O
PubChem CID66419
Synonyms6-Keto-17β-Estradiol, 6-Keto 17β-Estradiol, 6-Oxoestradiol, Estra-1,3,5(10)-trien-6-one, 3,17-dihydroxy-, (17beta)-, beta-Estradiol-6-one, 6-Keto 17b-Estradiol, Estra-1,3,5(10)-trien-6-one, 3,17-dihydroxy-, (17.beta.)-, 6-Keto 17Beta-Estradiol, Opera_ID_400, (17, A)-3,17-Dihydroxyestra-1,3,5(10)-trien-6-one

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Danger

  • H302Harmful if swallowed
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
  • H351Suspected of causing cancer
  • H360May damage fertility or the unborn child
  • H362May cause harm to breast-fed children

Precautionary statements P203, P233, P260, P263, P264, P270, P271, P280, P284, P301 + P317, P304 + P340, P318, P330, P342 + P316, P403, 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 6 Keto Estradiol
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 6 Keto Estradiol

Which CAS number identifies 6 Keto Estradiol?
6 Keto Estradiol is registered under CAS 571-92-6. You may also see it listed as 6-Keto-17β-Estradiol, 6-Keto 17β-Estradiol, 6-Oxoestradiol. Our catalogue number for this item is ZX-024580.
What are the formula and molar mass of 6 Keto Estradiol?
For 6 Keto Estradiol, its formula is C18H22O3 and its molar mass is 286.4 g/mol. The systematic (IUPAC) name is (8R,9S,13S,14S,17S)-3,17-dihydroxy-13-methyl-8,9,11,12,14,15,16,17-octahydro-7H-cyclopenta[a]phenanthren-6-one. InChIKey ZHTDDOWJIRXOMA-YVEZLPLXSA-N lets you match it in any structure database.
How is 6 Keto Estradiol used in pharmaceutical QC?
6 Keto Estradiol is a characterised reference material linked to Estradiol. 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 6 Keto Estradiol?
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 6 Keto Estradiol?
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 6 Keto Estradiol to my country?
Yes. Because 6 Keto Estradiol 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 Estradiol standards

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