CAS 431983-60-7 appears in our catalog under these names: 3-Hydroxy-4-methyl-8,9,10,11-tetrahydrocyclohepta[c]chromen-6(7h)-one, 95%, 3-Hydroxy-4-methyl-8,9,10,11-tetrahydrocyclohepta(c)chromen-6(7H)-one, 97%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 1g, 5g.