Coumarin 338 is a chemical compound registered under CAS number 62669-75-4, with the molecular formula C20H23NO4 and a molecular weight of about 341.4 g/mol. Its EINECS (EC) number is 263-688-3. It is also known as hydro-11-oxo-,1,1-dimethylethylester. NewsChem supplies Coumarin 338 for laboratory research and bulk production; product code 265200. Send an inquiry for purity, packaging, price and lead time.