17|A-Acetoxy-2|A-bromo-5|A-androstan-3-one 17|A-Acetoxy-2|A-bromo-5|A-androstanone 2|A-Bromo-17|A-hydroxy-5|A-androstan-3-one Acetate 6173-35-9 CAS 6173-35-9

Purity 97%+In StockPharmaceutical Standards
CAS No.6173-35-9
Molecular FormulaC21H31BrO3
Molecular Weight411.37 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

17|A-Acetoxy-2|A-bromo-5|A-androstan-3-one
17|A-Acetoxy-2|A-bromo-5|A-androstanone
2|A-Bromo-17|A-hydroxy-5|A-androstan-3-one Acetate
6173-35-9 CAS 6173-35-9 chemical structure

Description

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

17|A-Acetoxy-2|A-bromo-5|A-androstan-3-one 17|A-Acetoxy-2|A-bromo-5|A-androstanone 2|A-Bromo-17|A-hydroxy-5|A-androstan-3-one Acetate 6173-35-9 (CAS 6173-35-9), molecular formula C21H31BrO3 and molecular weight 411.37 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 17|A-Acetoxy-2|A-bromo-5|A-androstan-3-one 17|A-Acetoxy-2|A-bromo-5|A-androstanone 2|A-Bromo-17|A-hydroxy-5|A-androstan-3-one Acetate 6173-35-9 (C21H31BrO3) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. 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 411.37 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), 17|A-Acetoxy-2|A-bromo-5|A-androstan-3-one 17|A-Acetoxy-2|A-bromo-5|A-androstanone 2|A-Bromo-17|A-hydroxy-5|A-androstan-3-one Acetate 6173-35-9 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC21H31BrO3
Molecular Weight411.37 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Halogen ContentBr-containing

Related A Standards

Recommended Standards

Why CATO?