英文名称
                        [1-Ethyl-5-[[4-[[4-[[1-ethyl-6-hydroxy-4-methyl-2-oxo-5-(sulfomethyl)pyridin-3-yl]diazenyl]-3-[[4-[[1-ethyl-6-hydroxy-4-methyl-2-oxo-5-(sulfomethyl)pyridin-3-yl]diazenyl]-3-methoxyphenyl]-phenylmethyl]-5-methoxyphenyl]-phenylmethyl]-2-methoxyphenyl]diazenyl]-2-hydroxy-4-methyl-6-oxopyridin-3-yl]methanesulfonic acid