TMQ Rubber Antioxidant 2,2,4-Trimethyl-1,2-Dihydroquinoline Oligomers from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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