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QBD11471

Sigma-Aldrich

MAL-dPEG®12-Tris(m-dPEG®24)3

>95% (HPLC)

Synonym(s):

Branched Maleimide-PEG-m, Branched mPEG-maleimide, MAL-NH-PEG600-Tris(mPEG1000)3, MAL-PEG12-Tris(m-PEG24)3

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About This Item

Empirical Formula (Hill Notation):
C194H378N6O94
Molecular Weight:
4299.06
UNSPSC Code:
12352106
NACRES:
NA.22

Assay

>95% (HPLC)

form

solid or viscous liquid

reaction suitability

reaction type: Pegylations

polymer architecture

functionality: monofunctional

shipped in

ambient

storage temp.

−20°C

Features and Benefits

MAL-dPEG12-Tris(m-dPEG24)3 is a thiol-reactive, methyl-terminated, four-arm monodispersed PEG product designed to modulate biodistribution of conjugates. Tris forms the core of the molecule. Three equal-length methyl-terminated long arms plus one maleimido-terminated short arm extend from the tris core. From the maleimido olefin to the terminal methyl groups on each arm, the end-to-end length of this product is 127 atoms with an average distance of 103.7 Å. The amphiphilic PEG imparts hydrophilicity to conjugates, reduces or eliminates the conjugates′ antigenicity, and increases the hydrodynamic volume of conjugated molecules. Applications for this product include eradicating renal clearance, maintaining in vivo circulation for more extended periods, and suppressing immune responses to conjugates.

Legal Information

Products Protected under U.S. Patent #s 7,888,536 & 8,637,711 and European Patent #s 1,594,440 & 2,750,681
dPEG is a registered trademark of Quanta BioDesign

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Haiming Ding et al.
Bioconjugate chemistry, 24(11), 1945-1954 (2013-11-02)
The tumor-associated glycoprotein-72 (TAG-72) antigen is highly overexpressed in various human adenocarcinomas and anti-TAG-72 monoclonal antibodies, and fragments are therefore useful as pharmaceutical targeting vectors. In this study, we investigated the effects of site-specific PEGylation with MW 2-4 kDa discrete

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