Category:
Intermediates&Fine Chemicals
CAS NO:
90-33-5
Standard:
USP,
4-Methylumbelliferone (CAS 90-33-5, C8H8O3) is a fluorescent coumarin derivative synthesized via condensation of resorcinol and ethyl chloroacetate. It serves as a critical fluorogenic substrate in enzymatic assays.
Store under inert atmosphere at 2-8°C protected from light. Avoid inhalation; use appropriate PPE. Not approved for direct human therapeutic use; strictly industrial grade only.