5-Azidopentyl 4-methylbenzenesulfonate
5-Azidopentyl 4-methylbenzenesulfonate (Tos-pentane-azide) is a linker containing an azide group and a tosyl group. The azide group can react with alkyne, BCN, DBCO via Click Chemistry to yield a stable triazole linkage. The tosyl group is a good leaving group for nucleophilic substitution reactions.