Benzoicacid, 2,4-dihydroxy-6-methyl-, 3-(2-carboxyethenyl)-1',2',2'a,3',4'a,6',7,7',8,8',9',9'a,9'b,10',11',11'a-hexadecahydro-7'-hydroxy-7,9'a,11'a-trimethyl-6,8-dioxo-1'-(1,4,5-trimethyl-2-hexenyl)spiro[1H-2-benzopyran-5(6H),4'-[4H]indeno[6,7,1-mna]anth