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Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof: > Toluidines and their derivatives; salts thereof: > Other: > Other > Other
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 2921.43.90.90
p-Toluidine
p-Toluidine is an aromatic monoamine derivative with the chemical formula C7H9N, specifically 4-methylaniline, classified under HTS 2921.43.90.90 as a toluidine derivative. It is a key intermediate used in the production of dyes, pigments, and pharmaceuticals.
o-Toluidine Hydrochloride Salt
o-Toluidine hydrochloride is the salt form of 2-methylaniline (C7H9N·HCl), classified as a toluidine derivative salt under HTS 2921.43.90.90 per Chapter Note 1(C)(1). Used in synthesis of rubber antioxidants and azo dyes.
4-Amino-2-methylbenzoic Acid
This toluidine derivative features both amine-function and carboxylic acid group on a toluene base, classified under HTS 2921.43.90.90 as 'other' toluidines. Used as intermediate for pharmaceuticals and agrochemicals.
N-Ethyl-o-Toluidine
N-Ethyl-o-toluidine (C9H13N) is an N-substituted derivative of o-toluidine, remaining classified as toluidine derivative under HTS 2921.43.90.90. Primarily used in dye manufacturing and as a corrosion inhibitor.
2,5-Xylidine (2,5-Dimethylaniline)
2,5-Xylidine is a dimethyl-substituted toluidine analog (C8H11N), classified as 'other' toluidine derivative under HTS 2921.43.90.90. Essential for producing direct dyes and UV stabilizers.
Toluidine Blue O
Toluidine Blue O (C15H16ClN3S) is a thiazine dye derived from toluidine, but as a chemically defined compound primarily used as biological stain, classified under HTS 2921.43.90.90. Not excluded as retail coloring matter.
N,N-Dimethyl-p-Toluidine
N,N-Dimethyl-p-toluidine (C9H13N) is a tertiary amine derivative of p-toluidine, classified under HTS 2921.43.90.90 as other toluidine derivative. Widely used as catalyst in polymerization and dental materials.
5-Amino-o-Cresol
5-Amino-o-cresol (C7H9NO) is a hydroxylated toluidine derivative (4-methyl-3-aminophenol), classified under HTS 2921.43.90.90 due to dominant amine-function. Used in hair dye formulations and antioxidants.
4-Methylacetanilide
4-Methylacetanilide (N-(4-methylphenyl)acetamide, C9H11NO) is an acylated toluidine derivative, classified under HTS 2921.43.90.90 as 'other'. Serves as intermediate for analgesics like paracetamol analogs.
o-Toluidine Phosphate
o-Toluidine phosphate salt is used in corrosion inhibitors and dye intermediates, classified with toluidine base under HTS 2921.43.90.90 per salt classification rules. Chemically defined organic compound with phosphate counterion.
2-Amino-4-nitrotoluene
2-Amino-4-nitrotoluene (C7H8N2O2) is a nitro-substituted toluidine derivative, classified under HTS 2921.43.90.90 despite nitro group. Used exclusively as explosive intermediate (TNT precursor).
N-Methyl-p-Toluidine
N-Methyl-p-toluidine (C8H11N) secondary amine derivative of p-toluidine, classified HTS 2921.43.90.90. Employed in pharmaceutical synthesis and as rubber accelerator intermediate.
3-Ethoxy-4-methylaniline
3-Ethoxy-4-methylaniline is an alkoxy-substituted toluidine derivative, classified under HTS 2921.43.90.90 as other toluidine. Used in advanced dye synthesis and liquid crystal materials.
Toluidine Mixture (Stabilized)
Commercial toluidine mixture (mixed isomers with stabilizer) classified under HTS 2921.43.90.90 per Chapter Note 1(f). Used in industrial dye production where isomer separation is unnecessary.
p-Toluidine Sulfate
p-Toluidine sulfate is the sulfuric acid salt of p-toluidine, classified with the parent toluidine under HTS 2921.43.90.90 per Chapter Note 1(C)(2). Applied in hair dyes and analytical reagents.