5α-ANDROSTAN-3β-OL-7, 17-DIONE CAS 49643-99-4

Purity 97%+In StockPharmaceutical Standards
CAS No.49643-99-4
Molecular FormulaC19H28O3
Molecular Weight304.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5α-ANDROSTAN-3β-OL-7, 17-DIONE CAS 49643-99-4 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

5α-ANDROSTAN-3β-OL-7, 17-DIONE (CAS 49643-99-4) is a high-purity analytical reference standard with the molecular formula C19H28O3 and a molecular weight of 304.42 g/mol.

Structurally, 5α-ANDROSTAN-3β-OL-7, 17-DIONE (C19H28O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 304.42 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Physical & Chemical Properties

Molecular FormulaC19H28O3
Molecular Weight304.42 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1971

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