?? ?? ?? ???? ?? : +86 (0)575-82040869
???
PRODUCTS+86 (0)575-82040869
sales@catsyn.com
Catsyn? Pyridine, 4,4'-[4',5'-bis[4-(4-pyridinyl)phenyl][1,1':2',1''-terphenyl]-4,4''-diyl]bis- | CAS 591215-20-2?? ?? ??? ?????. ? ??? C50H34N4??, ???? 690.83g/mol??, ??? ????? NLT 98%???.