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Merck
CN

QBD10551

MAL-dPEG®4-TFP ester

别名:

Polyethylene glycol

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关于此项目

经验公式(希尔记法):
C24H28F4N2O9
分子量:
564.48
UNSPSC Code:
12352108
PubChem Substance ID:
NACRES:
NA.22
MDL number:
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InChI

1S/C24H28F4N2O9/c25-16-15-17(26)23(28)24(22(16)27)39-21(34)4-7-35-9-11-37-13-14-38-12-10-36-8-5-29-18(31)3-6-30-19(32)1-2-20(30)33/h1-2,15H,3-14H2,(H,29,31)

InChI key

LKZRDWRFDOPKGN-UHFFFAOYSA-N

SMILES string

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

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

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

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

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