4-Amino-naphthalin-1,5-disulfonsaeure, 4-amino-naphthalene-1,5-disulfonic acid, 4-Amino-1,5-naphthalenedisulfonic acid, 1-Naphthylamine-4,8-disulphonic acid, 1-Aminonaphthalene-4,8-disulfonic acid, Amino-S acid, Naphthylamin-(1)-disulfonsaeure-(4.8), 1-Naphthylamine-4,8-disulfonic acid, EINECS 204-196-0