CAS 1157-39-7 appears in our catalog under these names: 4',7-Dimethoxyisoflavone, 4',7-Dimethoxyisoflavone, 97% , 4',7-Dimethoxyisoflavone 97%, 4',7-Dimethoxyisoflavone, 98.20%, 4',7-DIMETHOXYISOFLAVONE, 97%. Offered by: Biosynth, Thermo Scientific (Alfa Aesar), Ambeed, MedChemExpress, Fluorochem. Available pack sizes: 5g, 2g, 10g, 25g, 50g, 100mg, 1mg, 5mg.