苯紫红素4B; 红紫素4B; 苯紫基红4B; 联苯胺红4B; 苯红紫4B; 直接红2; 3,3'-[[3,3'-二甲基(1,1'-联苯)-4,4'-二基]双(偶氮)]双(4-氨基-1-萘磺酸)二钠盐; BENZOPURPURIN 4B; BENZOPURPURIN B; Direct Benzo Purpine 4B; SULTAN 4B; PURPURINE 4B; VICTORIA RED; disodium,4-amino-3-[[4-[4-[(1-amino-4-sulfonatonaphthalen-2-yl)diazenyl]-3-methylphenyl]-2-methylphenyl]diazenyl]naphthalene-1-sulfonate; C.I. Direct Red 2, disodium salt; 3,3'-[(3,3'-Dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-1-naphthalenesulfonic Acid] Disodium Salt; Disodium 3,3'-[(3,3'-dimethylbiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis(4-aminonaphthalene-1-sulfonate); Direct red 2 (C.I. 23500); Sultan Red 4B
