CAS 21147-23-9 appears in our catalog under these names: methyl 2-[(4-hydroxyphenyl)carbonyl]benzoate, 95%, 2，4–Dimethoxy–4hydroxybenzophenone, Methyl 2-(4-hydroxybenzoyl)benzoate, 95%, 95%. Offered by: Combi-blocks, GLPBio, Chemat. Available pack sizes: 5g, 1g, 100mg, 250mg.