(2,2'-Binaphthalene)-1,1',6,6',7,7'-hexol, 3,3'-dimethyl-5,5'-bis(1-methylethyl)-8,8'-bis(((2-(sulfooxy)ethyl)imino)methyl)-, disodium salt 76500-07-7 Gossypol baes Gossypol beta-aminoethyl sodium sulfate Megasin