8-[(3,3'-dimethyl-4'-[(4-[([4-methylphenyl]sulfonyl)oxy]phenyl)azo][1,1'-biphenyl]-4-yl)azo]-7-hydroxy-1,3-naphthalenedisulfonic acid, disodium salt; Acid leather red bg; Acid red 114; Amacid milling red prs; Benzyl fast red bg; Benzyl red br; Ci acid red 114, disodium salt; Ci no. 23635; Elcacid milling fast red rs; Erionyl red rs; Fenafor red pb; Folan red b; Intrazone red br; Kayanol milling red rs; Leather fast red b; Levanol red gg; Midlon red prs; Milling fast red b; Milling red b; Milling red bb; Milling red swb; Polar red rs; Sandolan red n-rs; Sella fast red rs; Sulphonol red r; Suminol milling red rs; Supranol fast red 3g; Supranol fast red gg; Supranol red pbx-cf; Supranol red r; Telon fast red gg; Tertracid milling red b; Vondamol fast red rs.; 1,3-Naphthalenedisulfonic acid, 8-[[3,3'-dimethyl-4'-[[4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-7-hydroxy-, disodium salt.