17-Keto Fulvestrant

About 17-Keto Fulvestrant

17-Keto Fulvestrant is an impurity of Fulvestrant carrying the CAS registry number 403656-89-3. With the molecular formula C32H45F5O3S, it has a molar mass of 604.8 g/mol. Alternative names: Fulvestrant 17-Ketone.

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

As a characterised impurity of Fulvestrant, 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.

We offer 17-Keto Fulvestrant 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 Fulvestrant

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

Fulvestrant impurities

Specifications & identifiers

Chemical identifiers
Product name	17-Keto Fulvestrant
Catalogue No.	VQ-022725
CAS Number	403656-89-3
IUPAC name	(7R,8R,9S,13S,14S)-3-hydroxy-13-methyl-7-[9-(4,4,5,5,5-pentafluoropentylsulfinyl)nonyl]-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-one
Molecular formula	C₃₂H₄₅F₅O₃S
Molecular weight	604.8 g/mol
Exact mass	604.301
Grade	Reference Standard
HSN code	38229090
InChIKey	KQDQOVMMZCHGQS-YCCWCITDSA-N
SMILES	C[C@]12CC[C@H]3[C@H]([C@@H]1CCC2=O)[C@@H](CC4=C3C=CC(=C4)O)CCCCCCCCCS(=O)CCCC(C(F)(F)F)(F)F
PubChem CID	11767210

Physical properties
Physical form	Solid
LogP (XLogP3)	8.3
H-bond donors / acceptors	1 / 9
TPSA	73.6 Å²

Safety & hazard information (GHS)

Health hazard

Signal word: Warning

Hazard statements

H361Suspected of damaging fertility or the unborn child

Precautionary statements: P203, P280, P318, 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 17-Keto Fulvestrant?

The CAS Registry Number of 17-Keto Fulvestrant is 403656-89-3. It is also known as Fulvestrant 17-Ketone.

What is the molecular formula and molecular weight of 17-Keto Fulvestrant?

17-Keto Fulvestrant has the molecular formula C32H45F5O3S and a molecular weight of 604.8 g/mol. Its IUPAC name is (7R,8R,9S,13S,14S)-3-hydroxy-13-methyl-7-[9-(4,4,5,5,5-pentafluoropentylsulfinyl)nonyl]-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-one.

What is 17-Keto Fulvestrant used for?

17-Keto Fulvestrant is supplied as a characterised reference material related to Fulvestrant. 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 17-Keto Fulvestrant can I order?

We supply 17-Keto Fulvestrant 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 17-Keto Fulvestrant?

Yes. Every lot of 17-Keto Fulvestrant 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 17-Keto Fulvestrant be shipped internationally?

Yes. 17-Keto Fulvestrant 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.