Sanitized TMQ Rubber Stabilizer for Medical Tubing from Mexico
This purified TMQ oligomer mixture is used in pharmaceutical-grade rubber tubing to prevent oxidative failure. It qualifies for HTS 3812.31.00.00 as mixtures of 2,2,4-trimethyl-1,2-dihydroquinoline oligomers serving as rubber anti-oxidants.
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
• For medical end-use, cross-reference FDA device regulations alongside HTS chemical classification
• Provide heavy metal analysis (<10ppm) as TMQ impurities trigger additional scrutiny