苏丹Ⅳ ;四号苏丹红;猩红;邻甲苯偶氮邻甲苯偶氮-3-萘酚;油溶暗红;溶剂红24;苏丹红B;o-Tolyazo-o-tolyazo-β-naphthol Scarletred Oil red Ⅳ; Biebrich scarlet R fat soluble; Fat Ponceau R or 4; Lipid Crimson; Oil Red IV; Scarlet Red Scharlach; Solvent Red 24; Sudan R or BB; 1-[2-Methyl-4-(2-methylphenylazo)phenylazo]-2-naphthol; C.I. 26105