CAS 13020-19-4 appears in our catalog under these names: 2-[4-(β-D-Glucopyranosyloxy)phenyl]-5-hydroxy-6,7-dimethoxy-4H-1-benzopyran-4-one, 99.55% ,, 99.55% ,, Cirsimarin/ 99.55% (existing batch purity), Cirsimarin, Cirsimarin 98%, Cirsimarin (Standard). Offered by: Chemat, TargetMol, GLPBio, Biosynth, Ambeed. Available pack sizes: 1mg, 50mg, 100mg, 5mg, 10mg, 25mg, 200mg, Get quote.