英文名称:1-Naphthalenesulfonicacid,2-[2-[1-(2-chloro-5-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]diazenyl]-,lithium salt (1:2); 1-Naphthalenesulfonicacid,2-[[1-(2-chloro-5-sulfophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-,dilithium salt (9CI)