1,2,4-Triazolo(3,4-a)phthalazine, 3-(1,1'-biphenyl-4-yl)-6-(1-pyrrolidinyl)- 3-(1,1'-Biphenyl-4-yl)-6-(1-pyrrolidinyl)-1,2,4-triazolo(3,4-a)phthalazine 87540-04-3 BRN 6445141