CAS 853892-52-1 appears in our catalog under these names: (4,9-Dimethyl-7-oxo-3-phenyl-7h-furo[2,3-f]chromen-8-yl)acetic acid, 95%, 2-(4,9-Dimethyl-7-oxo-3-phenyl-7H-furo(2,3-f)chromen-8-yl)acetic acid, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 5g, 1g.