Sodium 3-((1,5-dihydroxy-2-naphthyl)azo)-4-hydroxybenzenesulphonate; C.I. 16500; Acid mordant Black 9; Chrome Black PLW(70:100); Black PV; Acid Mordant Black PV; 3-[(1,5-Dihydroxy-2-naphthalenyl)azo]-4-hydroxybenzenesulfonic acid sodium salt; Chrome Fast Black PV; Acid Mordant Black P; 3-((1,5-Dihydroxy-2-naphthyl)azo)-4-hydroxybenzenesulphonic acid; 3-[(E)-(1,5-Dihydroxy-2-naphthyl)diazenyl]-4-hydroxybenzenesulfonic acid
