异官能团双取代聚乙二醇PEG衍生物是的连接剂，其片段具有水溶性、生物相溶性、灵活性。以下是异官能团双取代的典型结构式：
NH2-PEG-COOH
mPEG-OH
mPEG-NH2
mPEG-COOH
mPEG-NHS
AA-PEG-AA AA-Acetic Acid
OH-PEG-OH
AC-PEG-AC AC-Acrylate
NCO-PEG-NCO
SAA-PEG-SAA SAA-Succinamide Acid
GAA-PEG-GAA GAA-Glutaramide Acid
MA-PEG-MA MA-Methacrylate
GA-PEG-GA GA-Glutaric Acid
VS-PEG-VS VS-Vinyl Sulfone
CHO-PEG-CHO
COOH-PEG-COOH
SH-PEG-SH SH-thiol
Alkyne-PEG-Alkyne
Azide-PEG-Azide
NH2-PEG-NH2
SA-PEG-SA SA-Succinic Acid
SS-PEG-SS SS-Succinimidyl Succinate ester
Br-PEG-Br
HZ-PEG-HZ HZ-Hydrazide
Biotin-PEG-Biotin
华腾生物为国内广大客户提供种类为的同官能团双取代聚乙二醇衍生物，纯度高、质量好、价格优。
