英文名称:trisodium 4-hydroxy-7-[[[[5-hydroxy-6-[(2-methoxyphenyl)azo]-7-sulphonato-2-naphthyl]amino]carbonyl]amino]-3-[(2-methyl-4-sulphonatophenyl)azo]naphthalene-2-sulphonate; C.I. 29185; C.I. Direct Red 24 (VAN); C.I. Direct Red 24, trisodium salt (8CI); trisodium (3Z)-3-[(2-methoxyphenyl)hydrazono]-7-[({(6Z)-6-[(2-methyl-4-sulfonatophenyl)hydrazono]-5-oxo-7-sulfonato-5,6-dihydronaphthalen-2-yl}carbamoyl)amino]-4-oxo-3,4-dihy