4H-1-Benzopyran, 2-(1,1-dimethylethyl)-4-(phenylethynyl)- is a chemical compound registered under CAS number 693251-75-1, with the molecular formula C21H20O and a molecular weight of about 288.39 g/mol. NewsChem supplies 4H-1-Benzopyran, 2-(1,1-dimethylethyl)-4-(phenylethynyl)- for laboratory research and bulk production; product code 1954158. Send an inquiry for purity, packaging, price and lead time.