Nitrophenyl functional PEG, NPC PEG is an amino (-NH2) reactive PEG derivative that can be used to modify protein, peptide or any other surfaces with available amino groups either on their lysine residue or N-terminus. NPC PEGs react readily with amine groups at a pH of from 6.5 to 9.5. Physical Properties: Off-white/white solid or viscous liquid depends on molecule weight; Soluble in regular aqeous solution as well as most organic solvents; Storage Conditions: Store at -20 0C. Dessicated.
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