英文名称
1,3a(2)-Bipyridinium, 5a(2)-[[4-[[7-[(1a(2),2a(2)-dihydro-6a(2)-hydroxy-3,4a(2)-dimethyl-2a(2)-oxo[1,3a(2)-bipyridinium]-5a(2)-yl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]azo]-1a(2)-[3-(dimethylamino)propyl]-1a(2),2a(2)-dihydro-6a(2)-hydroxy-4a(2)-methyl-2a(2)-oxo-, salt with 2-hydroxypropanoic acid (1:2)