2,4-Diaminophenol Dihydrochloride
2,4-Diaminophenol salt used in oxidation dyes. Dual amino but phenolic oxygen classifies here.
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Import Tips & Compliance
• Hair dye labeling if retail
• Confirm di-amino doesn't shift to 2921
Related Products under HTS 2922.29.81
p-Aminophenol
p-Aminophenol is a key intermediate chemical with both amino and phenolic hydroxyl oxygen functions, used primarily in the production of dyes, pharmaceuticals, and photographic developers. It falls under HTS 2922.29.81 as an amino-phenol (other than those with multiple oxygen functions) that is chemically defined and separate as per Chapter 29 notes. This classification applies to its pure form or with stabilizers necessary for transport.
2-Aminophenol (o-Aminophenol)
2-Aminophenol, also known as o-aminophenol, is an organic compound featuring an amino group ortho to a phenolic hydroxyl group, widely used as a dye intermediate and in rubber antioxidants. Classified under HTS 2922.29.81 as 'other' amino-phenols without multiple oxygen functions, it qualifies as a separate chemically defined compound under Chapter 29. Its ethers or esters would also fall here unless specified otherwise.
4-Aminophenol Hydrochloride Salt
4-Aminophenol hydrochloride is the salt form of p-aminophenol, used in hair dyes, pharmaceuticals, and as a polymer intermediate, featuring amino and phenolic functions. It is classified under HTS 2922.29.81 as salts thereof of amino-phenols, per Chapter 29 note (C)(1) directing inorganic salts to the organic compound's heading. This ensures consistency with the base amino-phenol classification.
m-Aminophenol
m-Aminophenol (3-aminophenol) is utilized in the synthesis of azo dyes, pharmaceuticals, and as a corrosion inhibitor, with its single amino and phenolic oxygen functions. It fits HTS 2922.29.81 as 'other' amino-phenols, being a separate chemically defined organic compound without multiple oxygen types. Meta substitution distinguishes it but keeps it in this specific subheading.
N-(4-Hydroxyphenyl)acetamide (Paracetamol Intermediate)
N-(4-Hydroxyphenyl)acetamide, a key paracetamol synthesis intermediate, has phenolic OH and amide (oxygen) but classified here if amino-phenol nature prevails. Under HTS 2922.29.81 as amino-phenol derivative with single oxygen type consideration. Chapter notes place it last in order among applicable oxygen-function amino-headings.
4-Aminoresorcinol (1,3-Dihydroxy-4-aminobenzene)
4-Aminoresorcinol has amino and two phenolic OH groups but classified as amino-phenol if not multiple kinds. HTS 2922.29.81 for 'other' provided context fits single oxygen function type. Used in dyes and cosmetics.