Tetrapolyphosphoric acid is a chemical compound registered under CAS number 13813-62-2, with the molecular formula H6O13P4 and a molecular weight of about 337.93 g/mol. Its EINECS (EC) number is 237-476-6. ChemIBD supplies Tetrapolyphosphoric acid for laboratory research and bulk production; product code 1126126. Send an inquiry for purity, packaging, price and lead time.