N,N'-bis-(azide-PEG3)-Cy5

Iodoacetamido-PEG8-t-butyl ester

m-PEG2-amine，tris-3,6-dioxaheptylamine，3,6-dioxa-heptylamine

Benzyloxy carbonyl-PEG3-t-butyl ester，Benzyloxy carbonyl-PEG3-C2-Boc

C11-PEG4-alcohol

Pyrene-PEG5-alcohol

Fmoc-NMe-PEG2-acid，Fmoc-N-methyl-PEG3-CH2CH2COOH

Cy5-PEG4-acid

Fmoc-PEG2-alcohol

NHS-PEG4-(m-PEG12)3-ester

N-Boc-N-bis(PEG1-azide)，N-Boc-N-bis(C2-PEG1-azide)

Biotin-PEG2-NHS ester

Biotin-PEG8-amine

m-PEG48-Mal

Bromoacetamido-PEG8-acid，1-Bromo-2-oxo-6,9,12,15,18,21,24,27-octaoxa-3-azatriacontan-30-oic acid

N-Biotin-N-bis(PEG4-acid)

N-(Azido-PEG3)-N-Boc-PEG4-t-butyl ester，N-(Azido-PEG3)-N-Boc-PEG4-Boc

PC Alkyne-PEG4-NHS carbonate ester

Biotin-PEG11-amine

Amino-PEG12-alcohol，Amino-PEG12-OH，35-Amino-3,6,9,12,15,18,21,24,27,30,33-undecaoxapentatriacontan-1-ol