Products described in additional U.S. note 3 to section VI
Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof: > Toluidines and their derivatives; salts thereof: > Other: > Products described in additional U.S. note 3 to section VI
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2921.43.40.00
p-Toluidine Hydrochloride
p-Toluidine hydrochloride is the salt of 4-methylaniline, a derivative of toluidine with aromatic amine functionality. It falls under HTS 2921.43.4000 as a toluidine derivative salt described in additional U.S. note 3 to section VI, which covers specific organic compounds subject to quantitative restrictions.
o-Toluidine Sulfate
o-Toluidine sulfate is the sulfuric acid salt of 2-methylaniline, used primarily as an intermediate in dye manufacturing. Classified under HTS 2921.43.4000 as a toluidine derivative salt per additional U.S. note 3 to section VI, ensuring control over these regulated aromatic amines.
p-Toluidine Technical Grade 98%
Technical grade p-toluidine (4-methylaniline) at 98% purity, containing minor impurities but remains chemically defined aromatic monoamine. Falls under HTS 2921.43.4000 per U.S. note 3 to section VI for toluidines used in industrial synthesis of dyes and polymers.
Toluidine Blue O Dye Base
Toluidine derivative serving as the core amine component for Toluidine Blue O synthesis, a thiazine dye used in histology. HTS 2921.43.4000 applies as it's a chemically defined toluidine derivative listed in additional U.S. note 3 to section VI.
N-Ethyl-o-Toluidine
N-Ethyl-o-toluidine is an N-substituted derivative of o-toluidine, maintaining aromatic monoamine function for use in pesticide and dye synthesis. Classified in HTS 2921.43.4000 as toluidine derivative per U.S. note 3 restrictions on these compounds.
4-Amino-2-Methylphenol (2-Methyl-4-aminophenol)
This toluidine-derived aminophenol combines aromatic amine with phenolic function but classifies primarily as toluidine derivative. HTS 2921.43.4000 per chapter note prioritizing later numerical heading and U.S. note 3 listing.
Toluidine Hydrochloride Stabilized
Toluidine hydrochloride with added stabilizer for safe transport, remaining chemically defined per chapter note (f). Used in analytical chemistry; HTS 2921.43.4000 as note 3 toluidine salt.
p-Toluidine in Aqueous Solution 20%
20% p-toluidine dissolved in water for safe handling, qualifying under chapter note (d) as chemically defined compound in water. HTS 2921.43.4000 maintains toluidine classification with note 3 quota.