4-[[4-[(4-Phenylamino-1-naphthalenyl)azo]-1-naphthalenyl]azo]benzene-1,3-disulfonic acid disodium salt
CAS No. 6527-61-3
4-[[4-[(4-Phenylamino-1-naphthalenyl)azo]-1-naphthalenyl]azo]benzene-1,3-disulfonic acid disodium salt;C.I.26340;Jet Black R