3-Phenyl­propionic acid anhydride CAS 15781-96-1

Purity 97%+In StockPharmaceutical Standards
CAS No.15781-96-1
Molecular FormulaC18H18O3
Molecular Weight282.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Phenyl­propionic acid anhydride CAS 15781-96-1 chemical structure

Description

As a certified reference material (CRM), 3-Phenyl­propionic acid anhydride 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.

CATO supplies 3-Phenyl­propionic acid anhydride (CAS 15781-96-1), a certified reference material (molecular formula C18H18O3, MW 282.33 g/mol) for analytical method development and quality control.

The molecular framework of 3-Phenyl­propionic acid anhydride (C18H18O3) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 FormulaC18H18O3
Molecular Weight282.33 g/mol
AppearancePale yellow to 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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1961

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