Azido-PEG5-Ala-Ala-Asn-PAB

Azido-PEG5-Ala-Ala-Asn-PAB PAB is a unique peptide cleavable ADC linker for antibody-drug-conjugation, Azido group is very reactive toward DBCO, BCN or other Alkyne groups, called click chemistry. PEG spacer increases the aqueous solubility.