139477-29-5 2,5-Pyrrolidinedione, 3-methyl-1-(5-methyl-1,3,4-thiadiazol-2-yl)-4-phenyl- 3-Methyl-1-(5-methyl-1,3,4-thiadiazol-2-yl)-4-phenyl-2,5-pyrrolidinedione BRN 4818234