Features and Benefits
MAL-dPEG®4-TFP ester is a heterobifunctional, linear crosslinking reagent containing a maleimide group on one end of the single molecular weight dPEG® spacer arm and an amine-reactive active ester on the other end. The number following the dPEG® refers to the exact number of spacer units present in the spacer arm. The maleimide group reacts readily and specifically with free sulfhydryl groups in aqueous media at pH 6.5-7.5. The 2,3,5,6-tetrafluorophenyl (TFP) ester is used widely in reactions with primary amines. The TFP-amine reactions can be carried out in aqueous or organic solvent. The dPEG® spacer is hydrophilic and non-immunogenic. Because it is a single molecular weight product, it gives the user precise spatial control. The dPEG® spacer also improves water solubility, decreases immunogenicity, and increases the hydrodynamic volume of the conjugate. The increased hydrodynamic volume results in longer serum half-life in vivo.
Legal Information
Products Protected under U.S. Patents # 7,888,536 B2
dPEG is a registered trademark of Quanta BioDesign
- UPC:
- 12142201
- Condition:
- New
- Availability:
- 3-5 Days
- Weight:
- 1.00 Ounces
- HazmatClass:
- No
- MPN:
- QBD10551-1000MG
