Bicyclo[2.2.1]heptane-2,3-dicarboxylic anhydride from United States
Bicyclo[2.2.1]heptane-2,3-dicarboxylic anhydride, also known as nadic anhydride, is a bicyclic cyclanic derivative with a norbornane framework and a fused anhydride group. As a separate chemically defined organic compound, it qualifies as a cyclanic polycarboxylic acid anhydride under tariff item 2917.20.00. It is primarily used as a curing agent for epoxy resins and in the production of alkyd resins.
Duty Rate — United States → Canada
Import Tips
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