4,4-Diphenylcyclohexane-1,3-Dione CAS 13128-74-0

Purity 97%+In StockPharmaceutical Standards
CAS No.13128-74-0
Molecular FormulaC18H16O2
Molecular Weight264.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,4-Diphenylcyclohexane-1,3-Dione CAS 13128-74-0 chemical structure

Description

As a certified reference material (CRM), 4,4-Diphenylcyclohexane-1,3-Dione 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.

4,4-Diphenylcyclohexane-1,3-Dione (CAS 13128-74-0) is a high-purity analytical reference standard with the molecular formula C18H16O2 and a molecular weight of 264.32 g/mol.

4,4-Diphenylcyclohexane-1,3-Dione (C18H16O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; 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 FormulaC18H16O2
Molecular Weight264.32 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1960

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