Title: Kyung-Mi Joo, et al. Development and validation of UPLC method for WST-1 cell viability assay and its application to MCTT HCE™ eye irritation test for colorful substances. Toxicol In Vitro. 2019 Oct;60:412-419.
Title: Munetaka ISHIYAMA, et al. A new sulfonated tetrazolium salt that produces a highly water-soluble formazan dye. Chem. Pharm. Bull. 1993, 41(6): 1118-1122.