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Key Documents

QBD10910

Sigma-Aldrich

m-dPEG®37-NHS ester

>95% (HPLC)

Synonym(s):

m-PEG37-NHS ester, mPEG-NHS ester, mPEG1500-NHS ester, mPEG37-NHS ester

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About This Item

Empirical Formula (Hill Notation):
C80H155NO41
Molecular Weight:
1787.07
MDL number:
UNSPSC Code:
12352108
NACRES:
NA.22

assay

>95% (HPLC)

form

solid or viscous liquid

reaction suitability

reaction type: Pegylations

polymer architecture

shape: linear
functionality: monofunctional

shipped in

ambient

storage temp.

−20°C

Features and Benefits

m-dPEG37-NHS ester is a methyl-terminated, single molecular weight, discrete chain length polyethylene glycol (dPEG) spacer. The carboxylic acid moiety on the end of the molecule opposite the methyl cap is activated with N-hydroxysuccinimide (NHS) for facile reaction with free amines. The dPEG spacer is 112 atoms (133.9 Å) long, a monodisperse equivalent of a polymeric PEG1500. m-dPEG37-NHS ester can be used to modify silica shelled quantum dots to make them water-soluble. Also, it has been employed to improve the pharmacokinetic (PK) and biodistribution (BD) properties of an antibody. Carbon nanotubes and inorganic nanoparticles with amine-functionalized surfaces could also be modified to passivate the surface and make it hydrophilic. Overall, proteins and other biomolecules conjugated to this product will have higher water solubility, reduced or eliminated antigenicity, and improved PK and BD properties.

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

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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