3-Aminoestra-1,3,5(10)-trien-17-one CAS 18119-98-7

Purity 97%+In StockPharmaceutical Standards
CAS No.18119-98-7
Molecular FormulaC18H23NO
Molecular Weight269.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Aminoestra-1,3,5(10)-trien-17-one CAS 18119-98-7 chemical structure

Description

As a certified reference material (CRM), 3-Aminoestra-1,3,5(10)-trien-17-one 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.

3-Aminoestra-1,3,5(10)-trien-17-one (CAS 18119-98-7), molecular formula C18H23NO and molecular weight 269.38 g/mol, is a CATO reference standard with documented purity and traceability.

3-Aminoestra-1,3,5(10)-trien-17-one (C18H23NO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC18H23NO
Molecular Weight269.38 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms1

Recommended Standards

Why CATO?