Thionyl Chloride (SOCl2) from Mexico
Thionyl chloride (SOCl2) is a pale yellow liquid chlorinating agent for pharmaceuticals, HTS 2812.19.00.90 as other chloride oxides of nonmetals (sulfur). Excluded from organo-inorganic per Chapter notes.
Duty Rate — Mexico → United States
3.7%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Stabilize with 0.5% impurities; ship <30°C to prevent decomposition
• UN 1836 labeling; declare SO2 emission risks
• Batch COA for <100ppm HCl content