Norbornane tetracarboxylic dianhydride from United States
Norbornane tetracarboxylic dianhydride is a bicyclic cyclanic compound with four carboxylic groups forming dual anhydride functionalities on a norbornane framework. It is a separate chemically defined organic compound that falls under tariff item 2917.20.00 as a cyclanic polycarboxylic acid derivative. This compound is used in polyimide film production and high-performance polymers.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is clearly identified as a separate chemically defined compound with high purity
• Provide technical documentation and a safety data sheet to the CBSA
• Check if the product is subject to any import restrictions under Canadian chemical regulations