Mestranol

Name: Mestranol
Brand: Vaqora Chemicals
SKU: VQ-043548

About Mestranol

Mestranol (CAS 72-33-3) is an API reference standard offered by Vaqora Chemicals. The compound has the formula C21H26O2, corresponding to a molecular weight of 310.4 g/mol. Alternative names: Ovastol and Ethynylestradiol 3-methyl ether.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Danger” with 8 hazard statements. Review the Safety Data Sheet before use.

As a reference sample of the parent drug substance, it is used for identification, assay and impurity-profiling work during analytical method development, validation (AMV) and routine QC. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer Mestranol in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Specifications & identifiers

Chemical identifiers
Product name	Mestranol
Catalogue No.	VQ-043548
CAS Number	72-33-3
IUPAC name	(8R,9S,13S,14S,17R)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol
Molecular formula	C₂₁H₂₆O₂
Molecular weight	310.4 g/mol
Exact mass	310.1933
Grade	Reference Standard
HSN code	38229090
InChIKey	IMSSROKUHAOUJS-MJCUULBUSA-N
SMILES	C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=C3C=CC(=C4)OC
PubChem CID	6291

Physical properties
Physical form	Solid
LogP (XLogP3)	4
H-bond donors / acceptors	1 / 2
TPSA	29.5 Å²
Synonyms	Ovastol, Ethynylestradiol 3-methyl ether, 3-Methoxyethynylestradiol, 3-Methylethynylestradiol, Ethynylestradiol methyl ether, Compound 33355, 3-Methoxy-17alpha-ethynylestradiol, Ethinylestradiol 3-methyl ether, Ethynyloestradiol 3-methyl ether, EE3-ME, 17alpha-Ethynylestradiol 3-methyl ether

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H351Suspected of causing cancer
H360May damage fertility or the unborn child
H362May cause harm to breast-fed children

Precautionary statements: P203, P260, P261, P263, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P318, P321, P330, P332 + P317, P337 + P317, P362 + P364, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Mestranol?

The CAS Registry Number of Mestranol is 72-33-3. It is also known as Ovastol, Ethynylestradiol 3-methyl ether, 3-Methoxyethynylestradiol.

What is the molecular formula and molecular weight of Mestranol?

Mestranol has the molecular formula C21H26O2 and a molecular weight of 310.4 g/mol. Its IUPAC name is (8R,9S,13S,14S,17R)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol.

Which grade and pack sizes of Mestranol can I order?

We supply Mestranol in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Mestranol?

Yes. Every lot of Mestranol is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Mestranol be shipped internationally?

Yes. Mestranol is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.