The molecule is a derivative of puromycin lacking the O-methyl group on the tyrosyl residue. It is a conjugate base of an O-demethylpuromycin(1+).
(2S)-2-amino-N-[(2S,3S,4R,5R)-5-[6-(dimethylamino)purin-9-yl]-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl]-3-(4-hydroxyphenyl)propanamide