1,2,4-Triazin-3(2H)-one, 5,6-bis(4-methoxyphenyl)-2-(2-(ethenyloxy)ethyl)- 5,6-Bis(4-methoxyphenyl)-2-(2-(ethenyloxy)ethyl)-1,2,4-triazin-3(2H)-one 84423-89-2 Oxo-3 vinyloxyethyl-2 di(paramethoxyphenyl)-5,6 as triazine [French] ST 777