... ,5-trimethyl hydroquinone1,4-dihydroxy-2,3,5-trimethylbenzene;3,6-dihydroxypseudoquinoneCAS Number:700-13-0 Molecular Formula:C9H12O2Molecular Weight:152.19 ... double double ways, copper thread pierced blooms. 1,4-dihydroxy-2,3,5-trimethylbenzene;