72208-28-7

Solvent Brown 20 Transparent Brown K C.I. Solvent Brown 20 (61813-86-3) solvent brown 20 C.I.Solvent Brown 20:C.I.201980 7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) 7,7'-[(4,6-Dihydroxy-1,3-phenylene)bis(2,1-diazenediyl)]bis-1,3-naphthalenedisulfonic acid N,N'-Bis(2-methylphenyl)guanidine 7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) 1,3-Naphthalenedisulfonic acid, 7,7'-[(4,6-dihydroxy-1,3-phenylene)bis(azo)]bis-, compd. with N,N'-bis(2-methylphenyl)guanidine (1:4) 7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) ISO 9001：2015 REACH