139477-39-7 2,5-Pyrrolidinedione, 3-methyl-4-phenyl-1-(5-propyl-1,3,4-thiadiazol-2-yl)- 3-Methyl-4-phenyl-1-(5-propyl-1,3,4-thiadiazol-2-yl)-2,5-pyrrolidinedione BRN 4821256