p-Phenylenediamine (1,4-Diaminobenzene)
p-Phenylenediamine is widely used in permanent hair colorants and as an antioxidant. It is included under HTS 2921.51.30.00 per the specific listing in additional U.S. note 3.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If base form explicitly separated from note 3 products
Tariff schedule distinguishes base from listed derivatives/salts.
If pre-dispersed in medium for retail dye packaging
Retail coloring preparations exclude from chapter 29.
If containing amide functions primarily
Oxygen/nitrogen function headings may supersede per note 4.
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Import Tips & Compliance
• Cosmetic grade requires FDA color additive petition compliance docs
• Test for heavy metals; exceedances trigger waste classification
• Use child-resistant packaging if destined for consumer formulations
Related Products under HTS 2921.51.30.00
o-Phenylenediamine Dihydrochloride
o-Phenylenediamine dihydrochloride is the salt form of o-phenylenediamine, a key aromatic polyamine used in dye and pharmaceutical synthesis. It falls under HTS 2921.51.30.00 as a derivative salt of o-phenylenediamine described in additional U.S. note 3 to section VI, which covers specific listed organic compounds.
p-Phenylenediamine Sulfate
p-Phenylenediamine sulfate is a salt derivative used primarily in oxidative hair dyes and rubber antioxidants. Classified under HTS 2921.51.30.00 as it matches products in additional U.S. note 3, specifically salts of p-phenylenediamine.
4,4'-Diaminodiphenylmethane (DADPM)
DADPM, or methylene bis(o-chloroaniline) derivative, is an aromatic polyamine used in polyurethane curing agents. It qualifies under HTS 2921.51.30.00 per additional U.S. note 3 for listed diaminotoluene derivatives and salts.
2,4-Diaminotoluene (2,4-Toluenediamine)
2,4-Toluenediamine is a diaminotoluene isomer used in dyes, polymers, and as a chain extender. Falls under HTS 2921.51.30.00 as described in additional U.S. note 3 to section VI for these specific aromatic polyamines.
o-Phenylenediamine (1,2-Diaminobenzene)
Pure o-phenylenediamine serves as an intermediate for benzimidazoles, dyes, and fungicides. Classified in HTS 2921.51.30.00 because it matches the products enumerated in additional U.S. note 3 to section VI.
2,6-Diaminotoluene
2,6-Diaminotoluene functions as a dye intermediate and polymer modifier. Covered by HTS 2921.51.30.00 as a diaminotoluene derivative described in U.S. note 3.