The ready isomerization of bilirubin IX-  in aqueous solution.
D001663:Bilirubin; D002021:Buffers; D002625:Chemistry, Organic; D002725:Chloroform; D006863:Hydrogen-Ion Concentration; D007536:Isomerism; D055601:Organic Chemistry Phenomena; D012996:Solutions; D013053:Spectrophotometry; D014867:Water
D002021:Buffers; D012996:Solutions; D014867:Water; D002725:Chloroform; D001663:Bilirubin