Acetaldehyde with MEHQ Inhibitor from Mexico
Acetaldehyde inhibited with 4-methoxyphenol (MEHQ) at 100 ppm to prevent oxidation, classified under HTS 2912.12.00.00 per Chapter 29 note (f) for stabilizers necessary for transport. Used in polymer and resin industries.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Quantify inhibitor level in COA to prove 'necessary preservation' status
• Test for inhibitor efficacy post-shipment to maintain stability claims
• Separate from basic chemicals to avoid reaction risks in transit