1a-Methylandrosterone

Name: 1a-Methylandrosterone
Brand: Vaqora Chemicals
SKU: VQ-044546

About 1a-Methylandrosterone

1a-Methylandrosterone is an impurity of Androsterone carrying the CAS registry number 3398-67-2. The compound has the formula C20H32O2, corresponding to a molecular weight of 304.5 g/mol. It is also known as 1alpha-Methylandrosterone.

It is supplied 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.

Pharmaceutical QC and development laboratories use this impurity standard of Androsterone to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 1a-Methylandrosterone is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

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

Industries

Related to Androsterone

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

Androsterone impurities

Specifications & identifiers

Chemical identifiers
Product name	1a-Methylandrosterone
Catalogue No.	VQ-044546
CAS Number	3398-67-2
IUPAC name	(1S,3R,5S,8R,9S,10S,13S,14S)-3-hydroxy-1,10,13-trimethyl-1,2,3,4,5,6,7,8,9,11,12,14,15,16-tetradecahydrocyclopenta[a]phenanthren-17-one
Molecular formula	C₂₀H₃₂O₂
Molecular weight	304.5 g/mol
Exact mass	304.2402
Grade	Reference Standard
HSN code	38229090
InChIKey	UBSQZFBBZMBPFF-XHSSWRBBSA-N
SMILES	C[C@H]1C[C@H](C[C@H]2[C@]1([C@H]3CC[C@]4([C@H]([C@@H]3CC2)CCC4=O)C)C)O
PubChem CID	12133280

Physical properties
Physical form	Solid
LogP (XLogP3)	4.1
H-bond donors / acceptors	1 / 2
TPSA	37.3 Å²
Synonyms	1alpha-Methylandrosterone, 1alpha-methyl-5alpha-androstan-3alpha-ol-17-one, 3alpha-Hydroxy-1alpha-methyl-5alpha-androstan-17-one, (1alpha,3alpha,5alpha)-3-Hydroxy-1-methylandrostan-17-one, Androstan-17-one, 3-hydroxy-1-methyl-, (1alpha,3alpha,5alpha)-, 1alpha-Methyl-5alpha-androstan-3alpha-ol-17- one, 1alpha-Methyl-5alpha-androstan-3alpha-ol-17-one degrees

Safety & hazard information (GHS)

Health hazard

Signal word: Warning

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 1a-Methylandrosterone?

The CAS Registry Number of 1a-Methylandrosterone is 3398-67-2. It is also known as 1alpha-Methylandrosterone, 1alpha-methyl-5alpha-androstan-3alpha-ol-17-one, 3alpha-Hydroxy-1alpha-methyl-5alpha-androstan-17-one.

What is the molecular formula and molecular weight of 1a-Methylandrosterone?

1a-Methylandrosterone has the molecular formula C20H32O2 and a molecular weight of 304.5 g/mol. Its IUPAC name is (1S,3R,5S,8R,9S,10S,13S,14S)-3-hydroxy-1,10,13-trimethyl-1,2,3,4,5,6,7,8,9,11,12,14,15,16-tetradecahydrocyclopenta[a]phenanthren-17-one.

What is 1a-Methylandrosterone used for?

1a-Methylandrosterone is supplied as a characterised reference material related to Androsterone. 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 1a-Methylandrosterone can I order?

We supply 1a-Methylandrosterone 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 1a-Methylandrosterone?

Yes. Every lot of 1a-Methylandrosterone 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 1a-Methylandrosterone be shipped internationally?

Yes. 1a-Methylandrosterone 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.