Thionyl Chloride with Pyridine Stabilizer from Mexico
Thionyl chloride stabilized with 0.1% pyridine inhibits decomposition for safer storage and transport in pharma synthesis. Still classified under HTS 2812.17.00.00 as the principal compound is chemically defined thionyl chloride per Chapter notes. The stabilizer is below threshold for reclassification.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Disclose stabilizer percentage (<1%) in import docs to retain Chapter 28 status
• Monitor for pyridine odor indicating excess, which could trigger organic classification
• Ensure compatibility with pharma cleanroom standards upon arrival