CAS 21763-80-4 appears in our catalog under these names: 5–Desmethylsinensetin, 5-Desmethylsinensetin/ 98.79% (existing batch purity), 2-(3,4-Dimethoxyphenyl)-5-hydroxy-6,7-dimethoxy-4H-chromen-4-one, 99.95% ,, 99.95% ,, 5-Desmethylsinensetin, 99.06%. Offered by: GLPBio, TargetMol, Chemat, MedChemExpress. Available pack sizes: 1mg, 5mg, 10mg, 25mg, 5 mg.