84423-93-8 Diethyl (5,6-bis(4-methoxyphenyl)-3-oxo-1,2,4-triazin-2(3H)-yl)propanedioate Oxo-3 diethylmalonyl-2 di(paramethoxyphenyl)-5,6 as triazine [French] Propanedioic acid, (5,6-bis(4-methoxyphenyl)-3-oxo-1,2,4-triazin-2(3H)-yl)-, diethyl ester ST 824