Biotin-PEG12-TFP ester from Aladdin Scientific Corporation

Biotin-PEG12-TFP ester with primary amino (-NH2) forms stable, irreversible amide bonds. The hydrophilic PEG spacer arm imparts water solubility that is transferred to the biotinylated molecule.Molecular Formula:C43H69F4N3O16SMW:992.1