assay kit WST-1 assay (Roche) PubChem AID: 602337 A colorimatric assay for cell viability/ proliferation based on the stable tetrazolium salt WST-1, which is cleaved to a soluble formazan by a complex cellular mechanism that occurs primarily at the cell surface. This bioreduction is largely dependent on the glycolytic production of NAD(P)H in viable cells. Date from BAE: 6/30/2016