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Thionyl Chloride from Mexico

Thionyl chloride (SOCl2) is a colorless liquid used as a chlorinating agent in organic synthesis for converting carboxylic acids to acid chlorides. It falls under HTS 2812.90.00 as a halide oxide of nonmetals, specifically sulfur oxychloride, distinct from pure halides like phosphoryl chloride in 2812.10. This chemically defined inorganic compound is essential in pharmaceutical and agrochemical manufacturing.

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

Obtain proper hazardous material declarations (DOT/UN 1836) and ensure packaging meets UN standards for corrosive liquids

Verify chemical purity certificates to confirm classification as chemically defined under Chapter 28 notes

Avoid misclassification as organo-chlorine compounds; provide lab analysis if composition is questioned by customs

Thionyl Chloride from Mexico — Import Duty Rate | HTS 2812.90.00