Ethynyl Estradiol 17-Acetate

Name: Ethynyl Estradiol 17-Acetate
Brand: Vaqora Chemicals
SKU: VQ-043160

About Ethynyl Estradiol 17-Acetate

Ethynyl Estradiol 17-Acetate (CAS 21221-29-4) is an impurity of Estradiol offered by Vaqora Chemicals. Its molecular formula is C22H26O3 and its molecular weight is 338.4 g/mol. Alternative names: Ethinylestradiol 17-Acetate.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a characterised impurity of Estradiol, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer Ethynyl Estradiol 17-Acetate in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Estradiol

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

Estradiol impurities

Specifications & identifiers

Chemical identifiers
Product name	Ethynyl Estradiol 17-Acetate
Catalogue No.	VQ-043160
CAS Number	21221-29-4
IUPAC name	[(8R,9S,13S,14S,17R)-17-ethynyl-3-hydroxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-yl] acetate
Molecular formula	C₂₂H₂₆O₃
Molecular weight	338.4 g/mol
Exact mass	338.1882
Grade	Reference Standard
HSN code	38229090
InChIKey	SZCORSRXZZKFQZ-AANPDWTMSA-N
SMILES	CC(=O)O[C@]1(CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=C3C=CC(=C4)O)C)C#C
PubChem CID	10914719

Physical properties
Physical form	Solid
LogP (XLogP3)	4.2
H-bond donors / acceptors	1 / 3
TPSA	46.5 Å²

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 Ethynyl Estradiol 17-Acetate?

The CAS Registry Number of Ethynyl Estradiol 17-Acetate is 21221-29-4. It is also known as Ethinylestradiol 17-Acetate, 19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol, (17alpha)-17-Acetate, 19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol, 17-acetate, (17.alpha.)-.

What is the molecular formula and molecular weight of Ethynyl Estradiol 17-Acetate?

Ethynyl Estradiol 17-Acetate has the molecular formula C22H26O3 and a molecular weight of 338.4 g/mol. Its IUPAC name is [(8R,9S,13S,14S,17R)-17-ethynyl-3-hydroxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-yl] acetate.

What is Ethynyl Estradiol 17-Acetate used for?

Ethynyl Estradiol 17-Acetate is supplied as a characterised reference material related to Estradiol. 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 Ethynyl Estradiol 17-Acetate can I order?

We supply Ethynyl Estradiol 17-Acetate 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 Ethynyl Estradiol 17-Acetate?

Yes. Every lot of Ethynyl Estradiol 17-Acetate 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 Ethynyl Estradiol 17-Acetate be shipped internationally?

Yes. We export Ethynyl Estradiol 17-Acetate worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.