PC-Biotin-PEG4-PEG3-azide

Amino-PEG11-t-butyl ester，H2N-PEG11-CH2CH2COOtBu

3-(m-PEG8-ethoxycarbonyl)propanoic acid，m-PEG8-ethoxycarbonyl-propanoic acid

t-Boc-N-amido-PEG6-amine，BocNH-PEG6-CH2CH2NH2，Boc-NH-PEG6-CH2CH2NH2

m-PEG7-acid，m-PEG6-CH2CH2COOH

Azido-PEG4-Amido-Tris

t-Boc-N-amido-PEG20-acid，Boc-NH-PEG20-CH2CH2COOH

N,N'-bis-(acid-PEG3)-Benzothiazole Cy5

DNP-PEG6-acid

Mal-PEG4-Glu(TFP ester)-NH-m-PEG24

Bromo-PEG2-methyl ester

Benzyl-PEG7-alcohol，Hexaethylene Glycol Monobenzyl Ether

m-PEG4-acid，m-PEG3-CH2CH2COOH

Biotin-PEG3-NHS ester

m-PEG10-alcohol，Decaethylene glycol monomethyl ether

N-(Azido-PEG3)-N-bis(PEG4-acid)

Bis-(N,N'-NHS-PEG4)-Cy5，Bis-(N,N'-PEG4-NHS ester)-Cy5

Fmoc-Lys (biotin-PEG12)-OH

Amino-PEG4-(CH2)3CO2H，1-Amino-3,6,9,12-tetraoxahexadecan-16-oic acid

Biotin-PEG2-Mal，Maleimide-PEG2-Biotin