D.C.Rot Nr.9; Lake Red C;Pigment Red 53-1; Red Lake C;2-Chlor-5-((2-hydroxy-1-naphthyl)azo)toluol-4-sulfonsäure; Natrium-5-chlor-4-methyl-2-[2-(2-oxonaphthalin-1(2H)-yliden)hydrazino]benzolsulfonat; 5-Chlor-4-methyl-2-[2-(2-oxonaphthalin-1(2H)-yliden)hydrazino]benzolsulfonsäure; Calciumbis{5-chlor-4-methyl-2-[(2E)-2-(2-oxonaphthalin-1(2H)-yliden)hydrazino]benzolsulfonat}; Barium bis{5-chlor-4-methyl-2-[(2Z)-2-(2-oxonaphthalen-1(2H)-yliden)hydrazinyl]benzolsulfonat}; Strontiumbis{5-chlor-4-methyl-2-[(2Z)-2-(2-oxonaphthalin-1(2H)-yliden)hydrazinyl]benzolsulfonat}; 5-Chlor-2-[(2-hydroxy-1-naphthyl)azo]-4-methyl-benzolsulfonsäure