I am going to do an antifungal susceptibility test and need Flucytosine. I found that most people used 5-Flucytosine. There are different products in Sigma and I do not know which one is suitable for this purpose. Which one should I use from this link? Is CAS 2022-85-7, product number F7129 the right one?

https://www.sigmaaldrich.com/CA/en/search/5-flucytosine?focus=products&page=1&perPage=30&sort=relevance&term=5-flucytosine%20&type=product