AS Type

Reactive group: -CH2-COO-NHS
Target groups: -NH2,-OH,-SH
Methoxy-PEG-CH2COO-NHS, Mw 2,000
Methoxy-PEG-CH2COO-NHS, Mw 5,000
Methoxy-PEG-CH2COO-NHS, Mw 10,000
Methoxy-PEG-CH2COO-NHS, Mw 20,000