Testosterone EP Impurity B

Name: Testosterone EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-006726

About Testosterone EP Impurity B

Testosterone EP Impurity B is a pharmacopeial impurity of Testosterone carrying the CAS registry number 972-46-3 with a typical assay of 99.33%. With the molecular formula C21H30O2, it has a molar mass of 314.5 g/mol. Its systematic (IUPAC) name is (8R,9S,10R,13S,14S)-3-ethoxy-10,13-dimethyl-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-one. Common synonyms include 3-Ethoxyandrosta-3,5-dien-17-one and Androst-4-ene-3,17-dione 3-ethyl enol ether.

It is supplied 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 Testosterone impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

We offer Testosterone EP Impurity B in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide. Stock is available for quick dispatch.

Typical applications

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

Industries

Related to Testosterone

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

Testosterone impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Testosterone EP Impurity B
Catalogue No.	VQ-006726
CAS Number	972-46-3
IUPAC name	(8R,9S,10R,13S,14S)-3-ethoxy-10,13-dimethyl-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-one
Molecular formula	C₂₁H₃₀O₂
Molecular weight	314.5 g/mol
Exact mass	314.2246
Grade	Reference Standard
Purity / assay	99.33%
HSN code	38229090
InChIKey	PAOWPNQOTVTCAF-OEUJLIAZSA-N
SMILES	CCOC1=CC2=CC[C@H]3[C@@H]4CCC(=O)[C@]4(CC[C@@H]3[C@]2(CC1)C)C
PubChem CID	10358291

Physical properties
Physical form	Solid
LogP (XLogP3)	4.3
H-bond donors / acceptors	0 / 2
TPSA	26.3 Å²
Synonyms	3-Ethoxyandrosta-3,5-dien-17-one, Androst-4-ene-3,17-dione 3-ethyl enol ether, Androstenedione Ethylenolether, Androsta-3,5-dien-17-one, 3-ethoxy-, Testosterone impurity B, 3-Ethoxy-androsta-3,5-dien-17-one, 3-Ethoxyandrosta-3,5-dien-17-one (Androstenedione Ethylenolether), 3-ethoxyandrosta-3,5-diene-17-one, Androsta-3,5-dien-17-one,3-ethoxy-, 3-ethoxyandrosta-3,5(6)-dien-17-one

Safety & hazard information (GHS)

Toxic

Health hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H361Suspected of damaging fertility or the unborn child

Precautionary statements: P203, P264, P270, P280, P301 + P316, P318, P321, P330, 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 Testosterone EP Impurity B?

The CAS Registry Number of Testosterone EP Impurity B is 972-46-3. It is also known as 3-Ethoxyandrosta-3,5-dien-17-one, Androst-4-ene-3,17-dione 3-ethyl enol ether, Androstenedione Ethylenolether.

What is the molecular formula and molecular weight of Testosterone EP Impurity B?

Testosterone EP Impurity B has the molecular formula C21H30O2 and a molecular weight of 314.5 g/mol. Its IUPAC name is (8R,9S,10R,13S,14S)-3-ethoxy-10,13-dimethyl-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-one.

What is Testosterone EP Impurity B used for?

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

We supply Testosterone EP Impurity B in Reference Standard (99.33%) grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Testosterone EP Impurity B?

Yes. Every lot of Testosterone EP Impurity B 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 Testosterone EP Impurity B be shipped internationally?

Yes. Testosterone EP Impurity B 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.