英文名称:1,4-Benzenedisulfonicacid,2-[[4-[[4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-6(or7)-sulfo-1-naphthalenyl]azo]-5-methyl-, tetrasodium salt (9CI); C.I. 34207; C.I. Direct Blue 308; Direct Blue 308; Direct Fast Sky Blue; Direct LightfastSky Blue