Phosphonic acid, di-2-propynyl ester is a chemical compound registered under CAS number 1980-99-0, with the molecular formula C6H7O3P and a molecular weight of about 158.09 g/mol. FireTardant supplies Phosphonic acid, di-2-propynyl ester for laboratory research and bulk production; product code 504420. Send an inquiry for purity, packaging, price and lead time.