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QBD10552

Sigma-Aldrich

MAL-dPEG®8-TFP ester

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Synonym(s):
Polyethylene glycol
Empirical Formula (Hill Notation):
C32H44F4N2O13
Molecular Weight:
740.69
MDL number:
PubChem Substance ID:
NACRES:
NA.22

assay

>90%

form

solid or viscous liquid

reaction suitability

reactivity: thiol reactive
reagent type: cross-linking reagent
reactivity: amine reactive

functional group

ester
maleimide

polymer architecture

shape: linear
functionality: heterobifunctional

shipped in

ambient

storage temp.

−20°C

SMILES string

O=C(OC1=C(F)C(F)=CC(F)=C1F)CCOCCOCCOCCOCCOCCOCCOCCOCCNC(CCN2C(C=CC2=O)=O)=O

Features and Benefits

MAL-dPEG®8-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 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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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