beta-Arbutin CAS: 497-76-7 Molecular Formula: C12H16O7 Appearance: white needle crystal or powder Content: no less than 99% Package: 25kg/paper drum (or per order) --------------------------------------- Alpha-Arbutin CAS: 84380-01-8 Molecular Formula: C12H16O7 Package: 25kg/paper drum (or per order)