1,4-Di-O-tosyl-2,3-O-isopropylidene-L-Threitol is a fully characterized chemical compound used as a reference standard of API Dithiothreitol. The standard offered is compliant with regulatory guidelines. 1,4-Di-O-tosyl-2,3-O-isopropylidene-L-Threitol is used for analytical method development, method validation (AMV), and Quality Controlled (QC) applications during synthesis and formulation stages of drug development and serves as a reference standard for traceability against pharmacopeial standards (USP or EP). Axios Research products are intended for analytical purposes only and are not for human use. CAS - 37002-45-2