3,16-Diisobutyryl-4-veratroylveracevin hemihydrate Cevane-3,4,12,14,16,17,20-heptol, 4,9-epoxy-, 3,16-bis(2-methylpropanoate), 4-(3,4-dimethoxybenzoate), hemihydrate FL4910700 Veracevine, 3,16-diisobutyrate 4-veratrate hemihydrate