CAS 367-93-1 appears in our catalog under these names: Isopropyl ß-D-Thiogalactopyranoside, Dioxane Free, >95% (HPLC), IPTG/ 99.6% (existing batch purity), IPTG (Isopropyl β–D–thiogalactoside), IPTG (dioxane grade), Isopropyl-beta-D-thiogalactopyranoside (IPTG), dioxane free,. Offered by: TRC, TargetMol, GLPBio, Iris Biotech, Thermo Scientific (Alfa Aesar). Available pack sizes: 100g, 10g, 1g, 5g, 25g, 500mg, 10mM (in 1ml dmso), on request.