13932-40-6 2,4-DIAMINO-5-PIPERONYLPYRIMIDINE 2,4-Diamino-5-(3,4-methylenedioxybenzyl)pyrimidine 2,4-Pyrimidinediamine, 5-(1,3-benzodioxol-5-ylmethyl)- 5-(1,3-Benzodioxol-5-ylmethyl)-2,4-pyrimidinediamine Pyrimidine, 2,4-diamino-5-piperonyl-