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900894

Sigma-Aldrich

Methyltetrazine-PEG4-NHS ester

≥95%

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Empirical Formula (Hill Notation):
C24H31N5O9
CAS Number:
Molecular Weight:
533.53
MDL number:
UNSPSC Code:
12352200
NACRES:
NA.22

Assay

≥95%

form

powder or crystals

reaction suitability

reaction type: click chemistry
reagent type: cross-linking reagent

functional group

NHS ester

storage temp.

−20°C

SMILES string

CC1=NN=C(N=N1)C2=CC=C(C=C2)OCCOCCOCCOCCOCCC(ON3C(CCC3=O)=O)=O

Application

Methyltetrazine-PEG4-NHS ester is a crosslinker with enhanced stability and water solubility. This crosslinker has an NHS ester that can be reacted with a primary amine and a methyltetrazine that is reactive with trans-cyclooctenes. Methyltetrazine-PEG4-NHS ester is one of the most stable tetrazines commercially available. In addition to stabilization provided by the electron donating methyl group, the electron donating alkoxy substituent on the aromatic ring further improves the stability of methyltetrazine-PEG4-NHS ester. The aqueous solubility of this reagent is substantially enhanced by a hydrophilic polyethylene glycol (PEG) spacer arm.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Biodegradable tetra-PEG hydrogels as carriers for a releasable drug delivery system.
Henise J, et al.
Bioconjugate Chemistry, 26(2), 270-278 (2015)

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