英文别名CALCION; 2,7-Naphthalenedisulfonic acid, 5-[(1,8-dihydroxy-3,6-disulfo-2-naphthalenyl)azo]-4-hydroxy-3-[(8-hydroxy-3,6-disulfo-1-naphthalenyl)azo]-, hexasodium salt; sodium 5-((1,8-dihydroxy-3,6-disulphonaphthalen-2-yl)azo)-4-hydroxy-3((8-hydroxy-3,6-disulphonaphthalen-1-yl)azo)naphthalene-2,7-disulphonate 
