Isopropyl-b-D-thiogalactopyranoside

White to off-white solid. HYGROSCOPIC. A free-flowing, hygroscopic carbohydrate that induces expression of the lac operon of E. coli by allosterically interacting with the repressor molecule. Inducer of b-D-galactosidase. This preparation contains 15% dioxane. Purity: ≥85% by TLC. Contaminants: dioxane: 15.0%. CAS 367-93-1.

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R: 40;