CAS 478-28-4 appears in our catalog under these names: Pseudoaspidin, 1,1′-[Methylenebis(2,4-dihydroxy-6-methoxy-5-methyl-3,1-phenylene)]bis[1-butanone], ≥98%, ≥98%. Offered by: GLPBio, Chemat, MedChemExpress. Available pack sizes: 1mg, 5mg, Get quote.