Biotin-PEG6-NH-Boc

N-(m-PEG4)-N'-(acid-PEG3)-Benzothiazole Cy5

17-(Bromoacetamido-PEG9-ethylcarbamoyl)nonanoic t-butyl ester

Biotin-PEG7-thiourea

m-PEG3-alcohol，m-PEG3-OH

PC Biotin-PEG3-azide

m-PEG3-t-butyl ester，m-PEG3-Boc

N-(m-PEG4)-N'-(PEG3-Mal)-Cy5

Bis-PEG7-acid，HOOCCH2CH2-PEG7-CH2CH2COOH

AZD-PEG13-PFP

m-PEG13-Ms

Bis-PEG8-NHS ester

Bis-PEG10-NHS ester

Bromoacetamido-PEG5-DOTA

Amino-PEG6-acid，NH2-PEG6-CH2CH2COOH，H2N-PEG6-COOH

Benzyl-PEG2-CH2CO2tBu，BnO-PEG1-CH2CO2tBu

Amino-PEG5-CH2CO2H，NH2-PEG5-CH2COOH

Diketone-PEG12-Biotin

Fmoc-NH-PEG3-CH2COOH

N-Mal-N-bis(PEG4-NH-Boc)