英文名称:[3-[[3-[(5-chloro-2-hydroxyphenyl)azo]-2,6-dihydroxyphenyl]azo]-2-hydroxy-5-nitrobenzenesulphonato(3-)]iron; Iron, (3-(2-(3-(2-(5-chloro-2-hydroxyphenyl)diazenyl)-2,6-dihydroxyphenyl)diazenyl)-2-hydroxy-5-nitrobenzenesulfonato(3-))-; Benzenesulfonic acid, 3-((2,6-dihydroxy-3-((5-chloro-2-hydroxyphenyl)azo)phenyl)azo)-2-hydroxy-5-nitro-, 1:1 complex with iron (I