1,2,4-Triazine-2(3H)-acetic acid, 5,6-diphenyl-alpha-methyl-3-oxo-, ethyl ester 108734-88-9 2-(1-Ethoxycarbonyl-1-ethyl)-3-oxo-5,6-diphenyl-as-triazine Ethyl 5,6-diphenyl-alpha-methyl-3-oxo-1,2,4-triazine-2(3H)-acetate