Dinatrium-4,5-dihydroxy-3-(p-nitrophenylazo)naphthalin-2,7-disulfonat 4-Nitroazobenzol 6-Amino-4-hydroxynaphthalin-2-sulfonsure Dinatrium-4-hydroxynaphthalin-2,7-disulfonat 2,5-Diaminobenzolsulfonsure 4,5-Dihydroxynaphthalin-2,7-disulfonsure Dinatrium-3-aminonaphthalin-2,7-disulfonat Dinatrium-4,5-dihydroxy-3-phenylazonaphthalin-2,7-disulfonat Naphthalin-2,7-disulfonsure 2-Amino-5-nitrobenzolsulfonsure 2-Naphthylamin Natriumhydrogen-3-amino-5-hydroxynaphthalin-2,7-disulfonat 3-Amino-5-hydroxynaphthalin-2,7-disulfonsure 6-Aminonaphthalin-2-sulfonsure 3,6-Bis(o-sulfophenylazo)-4,5-dihydroxynaphthalin-2,7-disulfonsure 3-Nitrobenzolsulfonsure 4-Hydroxynaphthalin-2,7-disulfonsure Natrium-4-hydroxynaphthalin-2-sulfonat