N-Nitrosodiphenylamine Analytical Standard from United States
N-Nitrosodiphenylamine Analytical Standard is a high-purity (99.5%+) certified reference material used for laboratory analysis. As a chemically defined diphenylamine derivative, it is classified under tariff item 2921.44.00, consistent with Chapter 29 purity requirements.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the analytical standard is accompanied by a certificate of analysis to confirm purity for classification under 2921.44.00
• Consider whether the product qualifies for duty-free importation as laboratory chemicals under tariff item 9802.00.00 if imported for research purposes
• Declare the product's end-use to CBSA to avoid delays