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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If phenolic function emphasized
Amino-hydroxy compounds could classify under oxygen-function amino compounds later.
If derived from different base
Aminophenols from aniline base use earlier specific subheadings.
If for phenol without amine group
Deamination products classify as aromatic phenols in earlier oxygen-function heading.
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Import Tips & Compliance
• Document as toluidine derivative first; phenolic aspect secondary per classification rules
• Provide comparative HPLC showing relation to parent toluidine structure
• Special handling for oxidation-sensitive aminophenols; use inert atmosphere packaging
Related Products 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.
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.