The molecule is a tripeptide consisting of AcTyrGlyGly with a (4-trimethylammoniophenyl)diazenyl group at the 3-position on the tyrosine phenyl ring. It is a tripeptide and a monoazo compound.
[4-[[5-[(2S)-2-acetamido-3-[[2-(carboxymethylamino)-2-oxoethyl]amino]-3-oxopropyl]-2-hydroxyphenyl]diazenyl]phenyl]-trimethylazanium