Tetrazine-Sulfo-NHS ester is a water-soluble NHS activated tetrazine derivative. This reagent was found to have the fastest kinetics for bioorthogonal reaction with trans-cyclooctene (TCO) as the dienophile. It can be used for simple and efficient labeling of antibodies, proteins and any other primary amine-containing macromolecules with the tetrazine moiety in 100% aqueous solution.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.