?? ?? ?? ???? ?? : +86 (0)575-82040869
???
+86 (0)575-82040869
sales@catsyn.com
Catsyn? Cyclobutane-1,2,3,4-tetracarboxylic dianhydride | CAS 4415-87-6?? ?? ??? ?????. ? ??? C8H4O6??, ???? 196.11g/mol??, ??? ????? 99%min???.
?? / ??
?? ??
Diethoxymethylsilane
1-(4-Bromophenyl)-2,3,4,5-tetraphenylbenzene
4,4'-Oxydianiline