2,5-Dimethyl-3,4-diphenyl-4-hydroxy-2-cyclopenten-1-one 2-Cyclopenten-1-one, 2,5-dimethyl-3,4-diphenyl-4-hydroxy- 2-Cyclopenten-1-one, 4-hydroxy-2,5-dimethyl-3,4-diphenyl- GY7277500