1,3,4-OXADIAZOLE, 2,5-BIS(3,4,5-TRIMETHOXYPHENYL)- 2,5-Bis(3,4,5-trimethoxyphenyl)-1,3,4-oxadiazole 2,5-Bis(3,4,5-trimetossifenilico)-1,3,4-ossadiazoli [Italian] 23288-95-1 BRN 1050733