TMQ Rubber Antioxidant 2,2,4-Trimethyl-1,2-Dihydroquinoline Oligomers from Mexico
This is a specific mixture of oligomers based on 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ), used as an anti-oxidizing preparation for rubber products. It protects rubber from oxidative degradation during processing and service life, classified under HTS 3812.31.00.00 due to its exact chemical composition as mixtures of TMQ oligomers for rubber stabilization.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide Safety Data Sheets (SDS) and chemical composition certificates confirming TMQ oligomer content to verify classification under 3812.31.00.00
• Check REACH or TSCA compliance for chemical imports; TMQ mixtures may require pre-registration with EPA
• Avoid misclassification as general rubber chemicals (3812.90); specify TMQ content to prevent duty reassessment