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CAS 66778-17-4 — Esculin Sesquihydrat

Esculin Sesquihydrate is a natural glycoside derived from the bark of horse chestnut (*Aesculus hippocastanum*), commonly used in microbiology for selective and differential media to detect beta-glucosidase activity in bacteria, particularly in the identification of *Enterococcus* species. It appears as a white to off-white crystalline powder, soluble in water and ethanol. This chemical has a CAS number of 66778-17-4, a molecular formula of C15H16O9 · 1.5H2O, and a molecular weight of 367.31 g/mol. It is stable under ambient storage conditions with no signal word for hazard classification. Molekula supplies Esculin Sesquihydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.