CAS 13323-66-5 appears in our catalog under these names: 4,2'-Dihydroxychalcone, 1-(2-Hydroxyphenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one 95%, 1-(2-Hydroxyphenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one, 95%, 95%, 4,2'-Dihydroxychalcone, min. 95 %, 250 mg, 4,2'-Dihydroxychalcone, min. 95 %, 500 mg. Offered by: Biosynth, Ambeed, Chemat, Roth, Fluorochem. Available pack sizes: 0,5g, 0,25g, 1g, 2g, 5g, 100mg, 250mg, 500mg.