2-[[1-oxo-2-[4-oxo-2-[(6-oxo-1-cyclohexa-2,4-dienylidene)methylhydrazo]-5-thiazolyl]ethyl]amino]acetic acid
2-[[1-oxo-2-[4-oxo-2-[(6-oxo-1-cyclohexa-2,4-dienylidene)methylhydrazo]-5-thiazolyl]ethyl]amino]acetic acid