Ethinylestradiol EP Impurity A

Name: Ethinylestradiol EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-025639

About Ethinylestradiol EP Impurity A

Ethinylestradiol EP Impurity A (CAS 4717-38-8) is a pharmacopeial impurity of Ethinylestradiol offered by Vaqora Chemicals. The compound has the formula C20H24O2, corresponding to a molecular weight of 296.4 g/mol. Its systematic (IUPAC) name is (8R,9S,13S,14S,17S)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol. It is also known as Ethinylestradiol - Impurity A or 17beta-ethinylestradiol.

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. Good laboratory practice and suitable PPE are recommended during handling.

As a characterised impurity of Ethinylestradiol, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

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

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Ethinylestradiol

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

Ethinylestradiol impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Ethinylestradiol EP Impurity A
Catalogue No.	VQ-025639
CAS Number	4717-38-8
IUPAC name	(8R,9S,13S,14S,17S)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol
Molecular formula	C₂₀H₂₄O₂
Molecular weight	296.4 g/mol
Exact mass	296.1776
Grade	Reference Standard
HSN code	38229090
InChIKey	BFPYWIDHMRZLRN-SWBPCFCJSA-N
SMILES	C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@]2(C#C)O)CCC4=C3C=CC(=C4)O
PubChem CID	145760

Physical properties
Physical form	Solid
LogP (XLogP3)	3.7
H-bond donors / acceptors	2 / 2
TPSA	40.5 Å²
Synonyms	Ethinylestradiol - Impurity A, 17beta-ethinylestradiol, 17-epi-Ethynylestradiol, 19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol, 17.beta.-ethinyl estradiol, 17beta-ethinyl estradiol, 17-epi-Ethynyl Estradiol, etinylestradiol

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 Ethinylestradiol EP Impurity A?

The CAS Registry Number of Ethinylestradiol EP Impurity A is 4717-38-8. It is also known as Ethinylestradiol - Impurity A, 17beta-ethinylestradiol, 17-epi-Ethynylestradiol.

What is the molecular formula and molecular weight of Ethinylestradiol EP Impurity A?

Ethinylestradiol EP Impurity A has the molecular formula C20H24O2 and a molecular weight of 296.4 g/mol. Its IUPAC name is (8R,9S,13S,14S,17S)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol.

What is Ethinylestradiol EP Impurity A used for?

Ethinylestradiol EP Impurity A is supplied as a characterised reference material related to Ethinylestradiol. 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 Ethinylestradiol EP Impurity A can I order?

We supply Ethinylestradiol EP Impurity A 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 Ethinylestradiol EP Impurity A?

Yes. Every lot of Ethinylestradiol EP Impurity A 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 Ethinylestradiol EP Impurity A be shipped internationally?

Yes. We export Ethinylestradiol EP Impurity A worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.