68189-42-4 EINECS 269-198-6 Phosphoric acid, mono(4-nitrophenyl) ester, compd. with 2-amino-2-(hydroxymethyl)-1,3-propanediol (1:2) p-Nitrophenyl dihydrogen phosphate, compound with 2-amino-2-(hydroxymethyl)propane-1,3-diol (1:2) p-Nitrophenyl phosphate di(tris(hydroxymethyl)methylamine) salt