Estetrol

Name: Estetrol
Brand: Vaqora Chemicals
SKU: VQ-025626

About Estetrol

Estetrol (CAS 15183-37-6) is a high-purity reference standard of Estriol offered by Vaqora Chemicals. The compound has the formula C18H24O4, corresponding to a molecular weight of 304.4 g/mol. Alternative names: Estetrol (Free Base) and Estetrol anhydrous.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

As a reference sample of Estriol, 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.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Estetrol is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

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

Industries

Related to Estriol

View every impurity, metabolite and intermediate we list for Estriol.

Estriol impurities

Specifications & identifiers

Chemical identifiers
Product name	Estetrol
Catalogue No.	VQ-025626
CAS Number	15183-37-6
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 formula	C₁₈H₂₄O₄
Molecular weight	304.4 g/mol
Exact mass	304.1675
Grade	Reference Standard
HSN code	38229090
InChIKey	AJIPIJNNOJSSQC-NYLIRDPKSA-N
SMILES	C[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 CID	27125

Physical properties
Physical form	Solid
LogP (XLogP3)	1.5
H-bond donors / acceptors	4 / 4
TPSA	80.9 Å²
Synonyms	Estetrol (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

Safety & hazard information (GHS)

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

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 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 Estetrol?

The CAS Registry Number of Estetrol is 15183-37-6. It is also known as Estetrol (Free Base), Estetrol anhydrous, 15alpha-hydroxyestriol.

What is the molecular formula and molecular weight of Estetrol?

Estetrol has the molecular formula C18H24O4 and a molecular weight of 304.4 g/mol. Its 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.

What is Estetrol used for?

Estetrol is supplied as a characterised reference material related to Estriol. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Estetrol can I order?

We supply Estetrol 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 Estetrol?

Yes. Every lot of Estetrol 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 Estetrol be shipped internationally?

Yes. Estetrol 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.