Purity >98%. Nivalenol is a type B trichothecene mycotoxin produced by Fusarium that is commonly found in contaminated foods. It can be metabolized to nivalenol-glucoside by the infected host, and this may be hydrolyzed back to the parent compound during digestion in mammals. Nivalenol is frequently observed with the mycotoxins deoxynivalenol and fusarenon X in contaminated foods.