(2,2'-Binaphthalene)-8,8'-dicarboxaldehyde, 1,1',7,7'-tetrakis(acetyloxy)-6,6'-dihydroxy-3,3'-dimethyl-5,5'-bis(1-methylethyl)- 1,1',7,7'-Tetrakis(acetyloxy)-6,6'-dihydroxy-3,3'-dimethyl-5,5'-bis(1-methylethyl)-(2,2'-binaphthalene)-8,8'-dicarboxaldehyde 74032-65-8 Gossypol tetra-acetic acid Gossypol tetracetic acid