68000-01-1 Cobaltate(4-), ((((nitrilo-kappaN)tris(methylene))tris(phosphonato-kappaO))(6-))-, tetrasodium, (T-4)- EINECS 268-068-6 Tetrasodium (((nitrilotris(methylene))tris(phosphonato))(6-)-N,O,O'',O''')cobaltate(4-) Tetrasodium cobaltous nitrilotri(methylenephosphonate)