Methyltetrazine-PEG8-acid

Methyltetrazine-PEG8-Acid is a click chemistry building block. In the presence of activators (e.g. EDC, or HATU), it can be used to conjugate with amine-containing molecule. PEG8 spacer increases the aqueous solubility of the compound. Methyltetrazine enable fast click chemistry with TCO ((trans-cycloctene) under mild condition