125674-71-7 3-Phenyl-2-isoxazolin-5-yl(P-ethoxy)phosphonic acid pyrrolidide Ethyl (4,5-dihydro-3-phenyl-5-isoxazolyl)-1-pyrrolidinylphosphinate Phosphinic acid, (4,5-dihydro-3-phenyl-5-isoxazolyl)-1-pyrrolidinyl-, ethyl ester