Acid Red 42

c.i. acid red 42 ; lanaperl red b ; c.i. acid red 42 (7ci) ; sodium 6-amino-4-hydroxy-5-[2-(phenylsulfonyl)phenylazo]-2-naphthalenesulfonate ; acid red 42 ; acid red 42 ; 2-naphthalenesulfonicacid, 6-amino-4-hydroxy-5-[2-[2-(phenylsulfonyl)phenyl]diazenyl]-, sodium salt(1:1) ; c.i.17070 ; unitertracid light red b ; 2-naphthalenesulfonicacid, 6-amino-4-hydroxy-5-[[2-(phenylsulfonyl)phenyl]azo]-, monosodium salt(9ci) ; supracen red b ; acidred 42 ; c.i. 17070 ; anthralan red b ; acid red 42 (c.i. 17070) ; sodium6-amino-4-hydroxy-5-[2-(phenylsulfonyl)phenylazo]-2-naphthalenesulfonate ; tectilon red 4b ; s 321443 ; telon red bll ; c.i. acid red 42, monosodium salt (8ci) ; telon light red bl