Synonyms: 5-(Ethylthio)-1H-tetrazole; 5-(Ethylthio)tetrazole solution
MDL Number: MFCD00068733
Purity: 32-35 g/L (ETT content, titration)
Other Notes: Activator solution, containing 5-(Ethylthio)-1H- tetrazole (ETT) in acetonitrile, are mixed with solutions of phosphoramidites during the extension step. The activator reacts with the amidite group to form a highly reactive intermediate. The intermediate then forms an internucleotide bond with the detritylated 5'hydroxyl group of the growing oligonucleotide chain.