t-Boc-N-amido-PEG1-amine，BOCNH-PEG1-CH2CH2NH2，Amino-PEG2-NH-Boc

AZD-PEG5-methyl ester

THP-PEG7，THP-PEG6-OH

SiR-PEG3-azide，SiR-PEG3-N3

HydroxRuixiG3-sulfonic acid，PEG4-sulfonic acid

Fmoc-N-amido-PEG9-acid，Fmoc-NH-PEG9-CH2CH2COOH

Biotin-PEG3-acid

m-PEG36-amine

Benzyl-PEG2-amine

t-boc-N-amido-PEG7-azide，Boc-NH-PEG7-azide

TBDMS-PEG5，TBDMS-PEG4-OH

Bis-PEG17-acid

Amino-PEG4-t-butyl ester，Amino-PEG4-Boc

DOTA-PEG5-amine HCl salt

NH-bis(PEG4-acid) HCl salt，NH-bis(PEG4-acid)

N-Benzyl-N-bis(PEG1-OH)，N-Benzyl-N-bis-PEG2

PEG13，Dodecaethylene glycol ，HO-PEG12-OH

Amino-PEG2-t-Boc-hydrazide，Amino-PEG2-C2-hydrazide-Boc

Bromo-PEG3-bromide，1,11-ibromo-3,6,9-trioxaundecane

N-Boc-N-bis(PEG3-acid)