Cyanoacetic Acid from Mexico
Cyanoacetic acid (NC-CH2-COOH) is a nitrile carboxylic acid used in pharmaceutical synthesis and herbicides. Despite dual functions, HTS 2926.90.5050 applies per Chapter 29 classification prioritizing later numerical heading for nitrile. Highly corrosive and reactive material.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• pH neutralization certificates for solid forms; avoid aqueous misdeclaration
• Confirm free acid vs salt form; salts follow base/acid rule in notes
• UN2788 hazard class requires specific overpack labeling