CAS 16135-41-4 appears in our catalog under these names: 6,7-Dimethoxy-1,4-dihydro-3h-isochromen-3-one, 95%, 6,7-Dimethoxyisochroman-3-one, 95+%, 6,7-Dimethoxy-1,4-dihydro-3H-isochromen-3-one, 6,7-dimethoxy-3,4-dihydro-1H-2-benzopyran-3-one, 95%, 95%. Offered by: Combi-blocks, AmBeed, Biosynth, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 10g, 1000mg, 100mg, 250mg.