137460-77-6 3aH-Benzo(3,4)(2)benzopyrano(1,8-bc)(1)benzopyran-4,11-diol, 6-(2-(2,4-dihydroxyphenyl)ethenyl)-1,8a,13b,13c-tetrahydro-8a-(5-hydroxy-2,2-dimethyl-2H-1-benzopyran-8-yl)-2-methyl- Sorocein A