$175.00 – $500.00
m-dPEG®8-NHS ester, product number 10260, is a medium length (26 atoms, 29.8 Å), methyl-terminated, discrete length polyethylene glycol (dPEG®) spacer. With a reactive end as the N-hydroxysuccinimidyl (NHS) ester, m-dPEG®8-NHS ester is designed to modify surfaces containing accessible free amines. NHS reacts optimally with free amines at pH 7.2 – 7.5. The hydrolytic rate of the ester to the carboxylic acid increases with increasing pH. Please note that modification of surface amines on biomolecules (e.g., proteins and peptides) with this uncharged, methyl-capped dPEG® spacer may alter the overall charge of the resulting conjugates.
|Dimensions||.75 × .75 × 2 in|