Crotonyl Chloride from Mexico
Crotonyl chloride (2-butenoyl chloride) combines acid chloride functionality with α,β-unsaturation and chlorine, but classified by halide nature. HTS 2903.29.00.00 per note 5(E) classifying acid halides with corresponding acids. Reactive intermediate for pharmaceuticals and polymer synthesis.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Reference corresponding crotonic acid (2916.20) classification per note 5(E) in documentation
• Handle as UN 2502 Corrosive liquid due to high reactivity with moisture and metals
• Confirm no alcoholate formation that would trigger note 5(D) alcoholate classification