Methyltetrazine-PEG4-Alkyne is a heterobifunctional, azide-to-TCO crosslinker with terminal alkyne and methyltetrazine groups connected through a PEG4 spacer. Often used to convert a readily available azide groups into methyltetrazine moiety through CuAAC reaction.
Axispharm offers 3000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.
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