(1Z,3Z)-1,4-Bis(diphenylphosphino)-1,2,3,4-tetraphenyl-1,3-butadiene, min. 98% Ph4-NUPHOS is a chemical compound registered under CAS number 420120-75-8, with the molecular formula C52H40P2 and a molecular weight of about 726.83 g/mol. NewsChem supplies (1Z,3Z)-1,4-Bis(diphenylphosphino)-1,2,3,4-tetraphenyl-1,3-butadiene, min. 98% Ph4-NUPHOS for laboratory research and bulk production; product code 242325. Send an inquiry for purity, packaging, price and lead time.