mPEG-Br

Methoxy-poly(ethylene glycol)-bromo (mPEG-Br) is a monofunctional precision PEG derivative with a defined chain length. One end bears a methoxy group. The other end bears a bromo group group. Discrete chain lengths with different degrees of polymerization are available. The bromo terminus retains a handle for subsequent nucleophilic substitution, facilitating the introduction of nitrogen- or sulfur-containing linking moieties. Capping one end defines the direction of derivatization, enabling the hydrophilic PEG segment to be attached to a target molecule and functional linkers of the required length to be constructed.

Customization available.