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API Reference Standards

Estetrol Monohydrate

Reference StandardAvailable on request

Order Estetrol Monohydrate (CAS 2055649-81-3) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-029346.

Pack sizes
Estetrol Monohydrate chemical structure
CAS number2055649-81-3
FormulaC18H26O5
Molar mass322.4 g/mol
Physical formSolid
HS code38229090
InChIKeyXRJNAPXFAXBPAM-BVTDNVAGSA-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;hydrate

About Estetrol Monohydrate

Zemixal lists Estetrol Monohydrate for laboratories that identify, quantify or control Estriol and its related substances. Identity at a glance (Reference Standard): CAS 2055649-81-3, formula C18H26O5 and molar mass 322.4 g/mol. It is handled as a solid.

Use cases we see most often

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

Safe handling

Classified under GHS with signal word Danger and hazard statements H351, H360, H362 and H410. Read the SDS before first use.

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 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

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Estetrol Monohydrate
Product nameEstetrol Monohydrate
Catalogue numberZX-029346
CAS number2055649-81-3
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;hydrate
Molecular formulaC18H26O5
Molar mass322.4 g/mol
Exact mass322.178
GradeReference Standard
Physical formSolid
H-bond donors / acceptors5 / 5
Topological polar surface area81.9 Ų
HS code38229090
InChIKeyXRJNAPXFAXBPAM-BVTDNVAGSA-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.O
PubChem CID135391051
SynonymsEstra-1,3,5(10)-triene-3,15alpha,16alpha,17beta-tetrol monohydrate, Estra-1,3,5(10)-triene-3,15,16,17-tetrol, hydrate (1:1), (15alpha,16alpha,17beta)-, Estetrol hydrous, E4 monohydrate, E4 hydrous, Estetrol (hydrate), Estetrol (JAN/USAN)

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
  • 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 Monohydrate
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 Monohydrate

Which CAS number identifies Estetrol Monohydrate?
Estetrol Monohydrate is registered under CAS 2055649-81-3. You may also see it listed as Estra-1,3,5(10)-triene-3,15alpha,16alpha,17beta-tetrol monohydrate, Estra-1,3,5(10)-triene-3,15,16,17-tetrol, hydrate (1:1), (15alpha,16alpha,17beta)-, Estetrol hydrous. Our catalogue number for this item is ZX-029346.
What are the formula and molar mass of Estetrol Monohydrate?
For Estetrol Monohydrate, its formula is C18H26O5 and its molar mass is 322.4 g/mol. InChIKey XRJNAPXFAXBPAM-BVTDNVAGSA-N lets you match it in any structure database.
How is Estetrol Monohydrate used in pharmaceutical QC?
Estetrol Monohydrate 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 Monohydrate?
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 Monohydrate?
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 Monohydrate to my country?
Yes. Because Estetrol Monohydrate 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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