125674-53-5 3-Phenyl-2-isoxazolin-5-ylphosphonic acid diammonium salt 58144-61-9 Diammonium (4,5-dihydro-3-phenyl-5-isoxazolyl)phosphonate Phosphonic acid, (4,5-dihydro-3-phenyl-5-isoxazolyl)-, diammonium salt