2,4-Dimethyl-5-(4-butoxybenzyl)pyrimid-6-ylaminophosphoric acid diethylenimide 28461-85-0 BRN 0724060 Phosphinic amide, P,P-bis(1-aziridinyl)-N-(5-(p-butoxybenzyl)-2,6-dimethyl-4-pyrimidinyl)- Preparation 142