布洛芬杂质69

Ibuprofen Impurity 69 (CAS 1340024-54-5; also cataloged as Ibuprofen EP Impurity V), chemically 6-isobutyl-3-methyl-2,3-dihydro-1H-inden-1-one (C14H18O, MW 202.29), is an indanone-type related substance of the nonsteroidal anti-inflammatory drug ibuprofen, formed through ring closure of the ibuprofen scaffold. As a know impurity of ibuprofen, it is used as a reference standard for the identification and quantitation of this compound in ibuprofen APIs and finished formulations, supporting HPLC impurity profiling, method validation, and regulatory quality control.