Exemestane EP Impurity E

Name: Exemestane EP Impurity E
Brand: Vaqora Chemicals
SKU: VQ-022618

About Exemestane EP Impurity E

Vaqora Chemicals supplies Exemestane EP Impurity E, a pharmacopeial impurity of Exemestane registered under CAS number 19457-55-7. With the molecular formula C20H26O2, it has a molar mass of 298.4 g/mol. Alternative names: 1,2-Dihydro Exemestane and Exemestane Related Compound A.

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. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

As a characterised impurity of Exemestane, 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.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Exemestane EP Impurity E 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 Exemestane

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

Exemestane impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Exemestane EP Impurity E
Catalogue No.	VQ-022618
CAS Number	19457-55-7
IUPAC name	(8R,9S,10R,13S,14S)-10,13-dimethyl-6-methylidene-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthrene-3,17-dione
Molecular formula	C₂₀H₂₆O₂
Molecular weight	298.4 g/mol
Exact mass	298.1933
Grade	Reference Standard
HSN code	38229090
InChIKey	KQRGETZTRARSMA-DAELLWKTSA-N
SMILES	C[C@]12CC[C@H]3[C@H]([C@@H]1CCC2=O)CC(=C)C4=CC(=O)CC[C@]34C
PubChem CID	12951800

Physical properties
Physical form	Solid
LogP (XLogP3)	2.6
H-bond donors / acceptors	0 / 2
TPSA	34.1 Å²
Synonyms	1,2-Dihydro Exemestane, Exemestane Related Compound A, Exemestane - Impurity E, 6-methyleneandrost-4-ene-3,17-dione, 6-Methylideneandrost-4-ene-3,17-dione, 6-Methyleneandrost-4-en-3,17-dione, 6-methylenandrost-4-en-3,17-dione, 6-methylenandrost-4-ene-3,17-dione, 6-Methylen-androst-4-ene-3,17-dione, 6-methylene-androst-4-ene-3,17-dione, Androst-4-ene-3,17-dione, 6-methylene-

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H361Suspected of damaging fertility or the unborn child

Precautionary statements: P203, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P318, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, 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 Exemestane EP Impurity E?

The CAS Registry Number of Exemestane EP Impurity E is 19457-55-7. It is also known as 1,2-Dihydro Exemestane, Exemestane Related Compound A, Exemestane - Impurity E.

What is the molecular formula and molecular weight of Exemestane EP Impurity E?

Exemestane EP Impurity E has the molecular formula C20H26O2 and a molecular weight of 298.4 g/mol. Its IUPAC name is (8R,9S,10R,13S,14S)-10,13-dimethyl-6-methylidene-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthrene-3,17-dione.

What is Exemestane EP Impurity E used for?

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

We supply Exemestane EP Impurity E 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 Exemestane EP Impurity E?

Yes. Every lot of Exemestane EP Impurity E 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 Exemestane EP Impurity E be shipped internationally?

Yes. Exemestane EP Impurity E 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.