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Thionyl Chloride from Japan

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 — 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

• 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