CAS Registry Number

CAS 89797-68-2 — 5-Ethylthio-1(H)-tetrazole

5-Ethylthio-1(H)-tetrazole (ETT) is a heterocyclic organic compound primarily used as an activator for phosphoramidite coupling in solid-phase oligonucleotide (DNA and RNA) synthesis, where it is commonly supplied as a 0.25 M solution in acetonitrile. It features a tetrazole ring with an ethylthio substituent, enabling versatile reactivity in organic transformations. This chemical has a CAS number of 89797-68-2, a molecular formula of C3H6N4S (or CN4(H)SCH2CH3), and a molecular weight of 130.17 g/mol. It should be stored between 2 to 8°C and is classified with a signal word of Warning. Molekula supplies 5-Ethylthio-1(H)-tetrazole from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Also known as: 5-(ethylsulfanyl)-1H-1,2,3,4-tetrazole · 5-(Ethylsulfanyl)-1H-tetrazole · 5-(ethylsulfanyl)-2H-1,2,3,4-tetrazole · 5-(Ethylsulfanyl)-2H-tetrazolato · 5-ethylsulfanyl-2H-tetrazole · 5-Ethylthiotetrazole · ETT Activator, 0.25 M · ETT Activator, 0.25 M in acetonitrile · ETT Activator, 0.3M · ETT Activator, 0.50 M in acetonitrile · 5-(Ethylthio)tetrazole (0.25 M in acetonitrile)