257950-98-4 Propanoic acid, 2-hydroxy-, compd. with 3,3'-((6-((3-(diethylamino)propyl)amino)-1,3,5-triazine-2,4-diyl)bis(imino-4,1-phenyleneazo))bis(5-((4,6-bis((2-aminomethylethyl)amino)-1,3,5-triazin-2-yl)amino)-4-hydroxy-2,7-naphthalenedisulfonic acid) (1:1)