1,3,4-Oxadiazole-2(3H)-thione, 3-((phenylamino)methyl)-5-(4-pyridinyl)- 3-((Phenylamino)methyl)-5-(4-pyridinyl)-1,3,4-oxadiazole-2(3H)-thione 84249-74-1 BRN 5589030