Mal-PEG4-NHS ester

5-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)pentanoic acid，5-Maleimidovaleric acid

3,4-Dibromo-Mal-PEG8-t-butyl ester，3,4-Dibromo-Mal-PEG8-Boc

Ald-Ph-PEG6-t-butyl ester，Ald-Ph-PEG6-Boc

Acid-PEG6-t-butyl ester，Acid-PEG6-C2-Boc

Mal-amido-PEG2-acid

t-butyl ester-PEG5-CH2COOH，Acid-C1-PEG5-Boc

Azido-PEG2-CH2CO2-NHS

Mal-amido-PEG24-TFP ester

t-Boc-AminooxRuixintane-azide

HydroxRuixiG2-methylamine，PEG3-methylamine

Mal-PEG8-alcohol

SPDP acid，3-(2-Pyridyldithio)propanoic Acid

N-Boc-4-aminobutyric Acid，Boc-GABA-OH

Ald-CH2-PEG10-t-butyl ester，Ald-CH2-PEG10-Boc

Mal-PEG2-Amide

N1,N5-Bis-Boc-spermidine

Cbz-N-amido-PEG2-acid，Cbz-NH-PEG2-C2-acid

Ald-Ph-PEG2-NH-Boc

Ald-Ph-PEG2-t-butyl ester，Ald-Ph-amido-PEG2-C2-Boc