CAS 133293-89-7 appears in our catalog under these names: Vinaxanthone/ 97.65% (existing batch purity), Vinaxanthone, Vinaxanthone 97%, 5,7-Diacetyl-6-(5-carboxy-6,7-dihydroxy-4-oxo-4H-chromen-3-yl)-2,3-dihydroxy-9-oxo-9H-xanthene-1-carboxylic acid, Vinaxanthone, 98.77%. Offered by: TargetMol, GLPBio, Ambeed, Chemat, MedChemExpress. Available pack sizes: 1mg, 5mg, 25mg, 50mg, 100mg, 10mg, 5 mg, 1 mg.