4-(6-Methyl-1,2,4,5-tetrazin-3-yl)phenol

4-(6-Methyl-1,2,4,5-tetrazin-3-yl)phenol is an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs. 4-(6-Methyl-1,2,4,5-tetrazin-3-yl)phenol is a click chemistry reagent, it contains a Tetrazine group that can undergo an inverse electron demand Diels-Alder reaction (iEDDA) with molecules containing TCO groups.