4,4'-DICYANOBENZOPHENONE(INTERMEDIATE OF LETROZOLE , 98+% is a chemical compound registered under CAS number 32445-66-5. ReagentForLab supplies 4,4'-DICYANOBENZOPHENONE(INTERMEDIATE OF LETROZOLE , 98+% for laboratory research and bulk production; product code 1512881. Send an inquiry for purity, packaging, price and lead time.