Allylestrenol Impurity A

Name: Allylestrenol Impurity A
Brand: Vaqora Chemicals
SKU: VQ-028884

About Allylestrenol Impurity A

Listed under CAS 3646-28-4, Allylestrenol Impurity A is an API impurity reference standard available from Vaqora Chemicals. Its molecular formula is C18H26O and its molecular weight is 258.4 g/mol. The IUPAC name is (8R,9S,10R,13S,14S)-13-methyl-2,3,6,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-one. Common synonyms include estr-4-en-17-one and Oestr-4-en-17-one.

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. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

This the parent drug substance impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Allylestrenol Impurity A in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Specifications & identifiers

Chemical identifiers
Product name	Allylestrenol Impurity A
Catalogue No.	VQ-028884
CAS Number	3646-28-4
IUPAC name	(8R,9S,10R,13S,14S)-13-methyl-2,3,6,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-one
Molecular formula	C₁₈H₂₆O
Molecular weight	258.4 g/mol
Exact mass	258.1984
Grade	Reference Standard
HSN code	38229090
InChIKey	OLYAEHZZXXLNQQ-QXUSFIETSA-N
SMILES	C[C@]12CC[C@H]3[C@H]([C@@H]1CCC2=O)CCC4=CCCC[C@H]34
PubChem CID	107437

Physical properties
Physical form	Solid
LogP (XLogP3)	4
H-bond donors / acceptors	0 / 1
TPSA	17.1 Å²

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H350May cause cancer
H360May damage fertility or the unborn child

Precautionary statements: P203, P261, P264, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P317, P318, P321, P330, 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 Allylestrenol Impurity A?

The CAS Registry Number of Allylestrenol Impurity A is 3646-28-4. It is also known as estr-4-en-17-one, Oestr-4-en-17-one.

What is the molecular formula and molecular weight of Allylestrenol Impurity A?

Allylestrenol Impurity A has the molecular formula C18H26O and a molecular weight of 258.4 g/mol. Its IUPAC name is (8R,9S,10R,13S,14S)-13-methyl-2,3,6,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-one.

Which grade and pack sizes of Allylestrenol Impurity A can I order?

We supply Allylestrenol 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 Allylestrenol Impurity A?

Yes. Every lot of Allylestrenol 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 Allylestrenol Impurity A be shipped internationally?

Yes. Allylestrenol Impurity A 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.