?? ?? ?? ???? ?? : +86 (0)575-82040869
???
PRODUCTS+86 (0)575-82040869
sales@catsyn.com
Catsyn? 1,2,4,5-Tetrakis [4 - (3',5'-dicarboxy-1,1'-biphenyl)] - 3,6 dimethylbenzene | CAS 2098551-92-7?? ?? ??? ?????. ? ??? null??, ???? g/mol??, ??? ????? NLT 98%???.