Bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphonite is a chemical compound registered under CAS number 154164-75-7, with the molecular formula C33H50O4P2 and a molecular weight of about 572.71 g/mol. It is also known as Ultranox 627. NewsChem supplies Bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphonite for laboratory research and bulk production; product code 591983. Send an inquiry for purity, packaging, price and lead time.