[[[2-[(1-oxo-2-propen-1-yl)amino]ethyl]amino]carbonyl]-

 Custom catalog products of analogs and derivatives. In addition, natural product derivatives and bioactive small molecules can also be customized.Tailor-made synthetic biotin and fluorescent modified natural products or drug small molecules, special needs of fluorescent dyes, biotin labeling, bio-orthogonal labeling, PEG, COF/MOF ligands.