m-Phenylenediamine
m-Phenylenediamine produces high-performance polymers like polyimides and epoxy curing agents. Classifies under HTS 2921.49.50.00 as aromatic diamine. Pure isomer meeting Chapter 29 chemical purity standards.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mercury or other metal compounds
Organo-mercury amine derivatives classify under heading 2929 per Chapter notes.
If pre-polymerized resin form
Partially polymerized amine-epoxy products become Chapter 39 polymers.
If sulfonated derivatives
Sulfonated amines shift to organo-sulfur compounds per heading 2930.
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Import Tips & Compliance
• Polymer manufacturer verification; oxidative stabilizer declaration; isomeric purity certification essential
Related Products under HTS 2921.49.50.00
p-Phenylenediamine
p-Phenylenediamine is an aromatic diamine used primarily as an intermediate in the production of dyes, rubber antioxidants, and hair dyes. It falls under HTS 2921.49.50.00 as an aromatic monoamine derivative with amine-function groups. This chemically defined organic compound meets Chapter 29 requirements for separate classification.
4-Aminophenol
4-Aminophenol is a key intermediate for pharmaceutical synthesis, photographic chemicals, and dye production, featuring both amino and hydroxyl groups on a benzene ring. Classified under HTS 2921.49.50.00 as an aromatic amine derivative. Meets Chapter 29 criteria for chemically defined amine-function compounds.
N-Phenyl-1-naphthylamine
N-Phenyl-1-naphthylamine serves as an antioxidant and stabilizer in rubber and lubricant formulations. This aromatic amine derivative is specifically covered under HTS 2921.49.50.00. Qualifies as a chemically defined compound per Chapter 29 note 1(a).
2,4-Diaminotoluene
2,4-Diaminotoluene is used in hair dyes, polyurethane elastomers, and as a photographic developer. Falls under HTS 2921.49.50.00 as an aromatic diamine derivative. Chemically defined per Chapter 29 requirements with dual amine functionality.
Diphenylamine
Diphenylamine functions as a pesticide stabilizer, rubber antioxidant, and solid rocket propellant stabilizer. Classified under HTS 2921.49.50.00 as a diarylamine derivative. Pure aromatic amine compound meeting Chapter 29 chemical definition standards.
Benzidine Dihydrochloride
Benzidine dihydrochloride serves as an intermediate for azo dyes and detection reagents despite carcinogen status. Falls under HTS 2921.49.50.00 as aromatic diamine salt. Chapter note 4(C)(1) directs salt classification with parent amine.