1(3H)-Isobenzofuranone, 3-ethynyl-4-phenyl- is a chemical compound registered under CAS number 501411-99-0, with the molecular formula C16H10O2 and a molecular weight of about 234.25 g/mol. FireTardant supplies 1(3H)-Isobenzofuranone, 3-ethynyl-4-phenyl- for laboratory research and bulk production; product code 1583498. Send an inquiry for purity, packaging, price and lead time.