What is the shelf-life of CTZ 400a, once dissolved?

If you use NanoFuel Solvent (Cat. #399) to dissolve the substrate, it will be stable for at least one year stored at -20C or below.

Methanol dissolved CTZ400a should have the same shelf-life. Methanol is very hygroscopic and will have an increased water content over time. Please use fresh Methanol to dissolve the substrate.