25447-55-6 29188-28-1 39401-12-2 68155-91-9 Cuprate(2-), (29H,31H-phthalocyanine-C,C-disulfonato(4-)-kappaN29,kappaN30,kappaN31,kappaN32)-, dihydrogen Dihydrogen (29H,31H-phthalocyaninedisulphonato(4-)-N29,N30,N31,N32)cuprate(2-) EINECS 249-494-1 Phthalocyaninedisulfonic acid, copper complex