13366-36-4 22560-32-3 4,4'-(1,2-Dimethyl-1,2-ethenediyl)diphenol 4,4'-Stilbenediol, alpha,alpha'-dimethyl Phenol, 4,4'-(1,2-dimethyl-1,2-ethenediyl)bis- alpha,alpha'-Dimethyl-4,4'-stilbenediol