Synonyms: Floccosin(8CI);[1a,1'A(4H,4'H)-Bi-2H-oxireno[6,7]naphtho[2,3-c]pyran]-4,4',9,9'(9aH,9'aH)-tetrone,6,6',7,7'-tetrahydro-2,2',3,3'-tetrahydroxy-9a,9'a-dimethoxy-6,6'-dimethyl-,[1aS-[1aa(1'aR*,2'S*,6'S*,9'aS*),2b,6b,9aa]]-; 2H-Oxireno[6,7]naphtho[2,3-c]pyran, bimol. deriv.