Alpha-Arbutin (CAS 84380-01-8): The Stable Brightener Formulators Reach For
A practical supplier guide to alpha-arbutin (CAS 84380-01-8): what the white-to-off-white powder is, its spec sheet (C12H16O7, MW 272.25, mp 195-196 C, soluble in water and ethanol, store 2-8 C), why formulators pick it over kojic acid and vitamin C for stable brightening formulas, typical applications, handling notes, and buyer specification advice.
