The mono-functional SUNBRIGHT® Series comprising highly purified methoxy PEG as the starting material contains negligible bifunctional PEG derived from diol impurities. Accordingly, bridging reactions (side reaction), an obstacle to PEGylation, can be prevented.
SUNBRIGHT® CS, GS, AS, PS, HS and TS Series (NHS active esters/Carbonate)
SUNBRIGHT® NP Series (p-Nitrophenyl Carbonate PEG)
SUNBRIGHT® AL Series (Aldehyde PEG)
SUNBRIGHT® PA Series (Aminopropyl PEG)
SUNBRIGHT® EA Series (Aminoethyl PEG)
SUNBRIGHT® SH Series (Thiol PEG)