?? ?? ?? ???? ?? : +86 (0)575-82040869
???
PRODUCTS+86 (0)575-82040869
sales@catsyn.com
Catsyn? Benzoic acid, 4,4'-(1,4-phenylenedi-2,1-ethynediyl)bis-, dimethyl ester | CAS 848850-13-5?? ?? ??? ?????. ? ??? C26H18O4??, ???? 394.42g/mol??, ??? ????? NLT 98%???.