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API Reference Standards

Estetrol

Reference StandardAvailable on request

Order Estetrol (CAS 15183-37-6) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Quotes within one business day.

Pack sizes
Estetrol chemical structure
CAS number15183-37-6
FormulaC18H24O4
Molar mass304.4 g/mol
Physical formSolid
HS code38229090
InChIKeyAJIPIJNNOJSSQC-NYLIRDPKSA-N
IUPAC name(8R,9S,13S,14S,15R,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,15,16,17-tetrol

About Estetrol

Analytical teams working on Estriol use Estetrol as a qualified comparison standard. Key data (Reference Standard): CAS 15183-37-6, formula C18H24O4 and molar mass 304.4 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Identification & assay
  • Method development & validation
  • QC reference material
  • Fine chemical synthesis

Storage and safety notes

It carries the GHS signal word Danger (H351, H360, H361 and H362), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. 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
  • Fine chemical synthesis

Applications

Specifications and identifiers

Specifications of Estetrol
Product nameEstetrol
Catalogue numberZX-024587
CAS number15183-37-6
IUPAC name(8R,9S,13S,14S,15R,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,15,16,17-tetrol
Molecular formulaC18H24O4
Molar mass304.4 g/mol
Exact mass304.1675
GradeReference Standard
Physical formSolid
XLogP31.5
H-bond donors / acceptors4 / 4
Topological polar surface area80.9 Ų
HS code38229090
InChIKeyAJIPIJNNOJSSQC-NYLIRDPKSA-N
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1[C@H]([C@H]([C@@H]2O)O)O)CCC4=C3C=CC(=C4)O
PubChem CID27125
SynonymsEstetrol (Free Base), Estetrol anhydrous, 15alpha-hydroxyestriol, oestetrol, Estetrol (anhydrous), estra-1,3,5(10)-triene-3,15alpha,16alpha,17beta-tetrol, Estra-1,3,5(10)-triene-3,15,16,17-tetrol, (15alpha,16alpha,17beta)-, 15-alpha-Hydroxy-Estriol, 15.alpha.-hydroxyestriol

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

  • H351Suspected of causing cancer
  • H360May damage fertility or the unborn child
  • H361Suspected of damaging fertility or the unborn child
  • H362May cause harm to breast-fed children
  • H410Very toxic to aquatic life with long lasting effects

Precautionary statements P203, P260, P263, P264, P270, P273, P280, P318, 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 Estetrol
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 Estetrol

Which CAS number identifies Estetrol?
Estetrol is registered under CAS 15183-37-6. You may also see it listed as Estetrol (Free Base), Estetrol anhydrous, 15alpha-hydroxyestriol. Our catalogue number for this item is ZX-024587.
What are the formula and molar mass of Estetrol?
For Estetrol, its formula is C18H24O4 and its molar mass is 304.4 g/mol. The systematic (IUPAC) name is (8R,9S,13S,14S,15R,16R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,15,16,17-tetrol. InChIKey AJIPIJNNOJSSQC-NYLIRDPKSA-N lets you match it in any structure database.
How is Estetrol used in pharmaceutical QC?
Estetrol 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 Estetrol?
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 Estetrol?
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 Estetrol to my country?
Yes. Because Estetrol 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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