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API Impurities

3-O-Methyl Estradiol

Reference StandardAvailable on request

Buy 3-O-Methyl Estradiol (CAS 1035-77-4) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Part of our API Impurities range.

Pack sizes
3-O-Methyl Estradiol chemical structure
CAS number1035-77-4
FormulaC19H26O2
Molar mass286.4 g/mol
Physical formSolid
HS code38229090
InChIKeyULAADVBNYHGIBP-GFEQUFNTSA-N
IUPAC name(8R,9S,13S,14S,17S)-3-methoxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-ol

About 3-O-Methyl Estradiol

3-O-Methyl Estradiol belongs to the Estradiol reference-standard family in the Zemixal catalogue. Key data (Reference Standard): CAS 1035-77-4, formula C19H26O2 and molar mass 286.4 g/mol. It is handled as a solid.

Use cases we see most often

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

Handling and storage

Classified under GHS with signal word Warning and hazard statements H302, H312 and H332. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. 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 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

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of 3-O-Methyl Estradiol
Product name3-O-Methyl Estradiol
Catalogue numberZX-024607
CAS number1035-77-4
IUPAC name(8R,9S,13S,14S,17S)-3-methoxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-ol
Molecular formulaC19H26O2
Molar mass286.4 g/mol
Exact mass286.1933
GradeReference Standard
Physical formSolid
XLogP33
H-bond donors / acceptors1 / 2
Topological polar surface area29.5 Ų
HS code38229090
InChIKeyULAADVBNYHGIBP-GFEQUFNTSA-N
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2O)CCC4=C3C=CC(=C4)OC
PubChem CID246206
SynonymsEstradiol 3-methyl ether, 3-Methoxyoestradiol, 3-Methoxyestradiol, Estradiol-17beta-3-methyl ether, 3-Methoxyoestra-1,3,5(10)-trien-17-beta-ol, (17-beta)-3-Methoxyestra-1,3,5(10)-trien-17-ol, ESTRA-1,3,5(10)-TRIEN-17-beta-OL, 3-METHOXY-, Estra-1,3,5(10)-trien-17-ol, 3-methoxy-, (17-beta)-, 17beta-Estradiol 3-methyl ether, Oestradiol 3-methyl ether, 17.beta.-Estradiol 3-methyl ether

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

Signal word Warning

  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H332Harmful if inhaled

Precautionary statements P261, P264, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P317, P321, P330, P362 + P364, 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 3-O-Methyl 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 3-O-Methyl Estradiol

Which CAS number identifies 3-O-Methyl Estradiol?
3-O-Methyl Estradiol is registered under CAS 1035-77-4. You may also see it listed as Estradiol 3-methyl ether, 3-Methoxyoestradiol, 3-Methoxyestradiol. Our catalogue number for this item is ZX-024607.
What are the formula and molar mass of 3-O-Methyl Estradiol?
For 3-O-Methyl Estradiol, its formula is C19H26O2 and its molar mass is 286.4 g/mol. The systematic (IUPAC) name is (8R,9S,13S,14S,17S)-3-methoxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-ol. InChIKey ULAADVBNYHGIBP-GFEQUFNTSA-N lets you match it in any structure database.
How is 3-O-Methyl Estradiol used in pharmaceutical QC?
3-O-Methyl 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 3-O-Methyl 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 3-O-Methyl 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 3-O-Methyl Estradiol to my country?
Yes. Because 3-O-Methyl 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.

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