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API Reference Standards

Estriol

Reference StandardIn stock

Buy Estriol (CAS 50-27-1) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-006546. Exported from India with full paperwork.

Pack sizes
Estriol chemical structure
CAS number50-27-1
FormulaC18H24O3
Molar mass288.4 g/mol
Physical formSolid
HS code38229090
InChIKeyPROQIPRRNZUXQM-ZXXIGWHRSA-N
IUPAC name(8R,9S,13S,14S,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,16,17-triol

About Estriol

Zemixal lists Estriol for laboratories that identify, quantify or control Estriol and its related substances. For your records (Reference Standard), the material is defined by CAS 50-27-1, formula C18H24O3 and molar mass 288.4 g/mol. It is handled as a solid.

Where it is used

  • Identification & assay
  • Method development & validation
  • QC reference material

Handling and storage

Hazard communication follows GHS (Danger: H350, H351, H360 and H362). 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. Every shipment includes a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Estriol

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

Estriol standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Specifications and identifiers

Specifications of Estriol
Product nameEstriol
Catalogue numberZX-006546
CAS number50-27-1
IUPAC name(8R,9S,13S,14S,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,16,17-triol
Molecular formulaC18H24O3
Molar mass288.4 g/mol
Exact mass288.1725
GradeReference Standard
Physical formSolid
XLogP32.5
H-bond donors / acceptors3 / 3
Topological polar surface area60.7 Ų
HS code38229090
InChIKeyPROQIPRRNZUXQM-ZXXIGWHRSA-N
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1C[C@H]([C@@H]2O)O)CCC4=C3C=CC(=C4)O
PubChem CID5756
Synonyms(16alpha,17beta)-Estra-1,3,5[10]-triene-3,16,17-triol, Acifemine, Colpogyn, Destriol, Ovesterin, Ovestin, Tridestrin, Tricovex, Oestriol, Trihydroxyestrin, Aacifemine, Estratriol

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

Safety and GHS hazards

GHS08 Health hazard
Health hazard
GHS09 Hazardous to the environment
Hazardous to the environment

Signal word Danger

  • H350May cause cancer
  • H351Suspected of causing cancer
  • H360May damage fertility or the unborn child
  • H362May cause harm to breast-fed children
  • H372Causes damage to organs through prolonged or repeated exposure
  • H410Very toxic to aquatic life with long lasting effects

Precautionary statements P203, P260, P263, P264, P270, P273, P280, P318, P319, P391, 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 Estriol
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 Estriol

Which CAS number identifies Estriol?
Estriol is registered under CAS 50-27-1. You may also see it listed as (16alpha,17beta)-Estra-1,3,5[10]-triene-3,16,17-triol, Acifemine, Colpogyn. Our catalogue number for this item is ZX-006546.
What are the formula and molar mass of Estriol?
For Estriol, its formula is C18H24O3 and its molar mass is 288.4 g/mol. The systematic (IUPAC) name is (8R,9S,13S,14S,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,16,17-triol. InChIKey PROQIPRRNZUXQM-ZXXIGWHRSA-N lets you match it in any structure database.
How is Estriol used in pharmaceutical QC?
Estriol is a characterised reference material linked to Estriol. 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 Estriol?
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 Estriol?
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 Estriol to my country?
Yes. Because Estriol 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.

Other grades with CAS 50-27-1

Estriol, 97%
CAS
50-27-1
Formula
C18H24O3
MW
288.4 g/mol
ZX-003820

More Estriol standards

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