4-Phenylenediamine (PPD)
4-Phenylenediamine, a diamino derivative of aniline, is classified under HTS 2921.42.90.00 as an aromatic monoamine derivative. Widely used in rubber antioxidants, dyes, and photographic chemicals.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If o-, m-, p-phenylenediamines in specific subheading
Specific provision takes precedence over 'other' category.
If imported pre-mixed as rubber antioxidant preparation
Prepared rubber accelerators classified in Chapter 38.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Extremely toxic; requires proper Hazard Class 6.1 PG II labeling and UN 1673
• Technical grade 97%+ purity needed; lower grades may classify as mixtures
• Provide end-use statement to avoid anti-dumping scrutiny on Chinese material
Related Products under HTS 2921.42.90.00
p-Nitroaniline
p-Nitroaniline is a nitrated derivative of aniline with the nitro group para to the amino group, falling under HTS 2921.42.90.00 as an aromatic monoamine derivative. Used extensively in azo dye manufacturing and as a pharmaceutical intermediate.
2,4-Diaminoanisole Sulfate
This diamine derivative of methoxyaniline, supplied as sulfate salt, falls under HTS 2921.42.90.00 per classification rules for amine salts. Used in polymer synthesis and hair dye intermediates.
N-Phenyl-1-naphthylamine
This secondary aromatic amine, derived from aniline and naphthylamine, falls under HTS 2921.42.90.00 as an aniline derivative. Primarily used as a rubber antioxidant and stabilizer.
2,4,6-Trichloroaniline
Trichloroaniline with chlorines ortho and para to amino group, classified under HTS 2921.42.90.00 including halogenated derivatives per chapter note 4. Used in herbicide and dye synthesis.
4-Aminodiphenylamine
A diphenylamine derivative with one amino-substituted phenyl ring, classified as aniline derivative under HTS 2921.42.90.00. Used in rubber curing agents and dye intermediates.
m-Phenylene Diamine (MPD)
Meta-phenylenediamine, an aromatic diamine derivative of aniline, falls under HTS 2921.42.90.00. Key intermediate for polyamides, epoxy resins, and fungicides.