p-Phenylenediamine
p-Phenylenediamine is an aromatic diamine used primarily as an intermediate in the production of polymers, dyes, and rubber antioxidants. It falls under HTS 2921.59.4000 as an aromatic polyamine derivative listed in additional U.S. note 3 to section VI, which specifies certain organic chemicals subject to quantitative limitations.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 6.5% | +35.0% | 41.5% |
| 🇲🇽Mexico | 6.5% | +10.0% | 16.5% |
| 🇨🇦Canada | 6.5% | +10.0% | 16.5% |
| 🇩🇪Germany | 6.5% | +10.0% | 16.5% |
| 🇯🇵Japan | 6.5% | +10.0% | 16.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If it is o-, m-, or p-phenylenediamine specifically
Certain named phenylenediamines are separately provided for earlier in the numerical order within 2921.51.
If imported as a finished synthetic dye or coloring intermediate
Products primarily used as synthetic organic coloring matter fall under Chapter 32, not amine compounds of Chapter 29.
If imported as a mixture with solvents or additives exceeding Chapter 29 specifications
Complex chemical mixtures not qualifying as separate compounds under Chapter 29 notes go to mixtures in Chapter 38.
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Import Tips & Compliance
• Verify inclusion in additional U.S. note 3 to section VI and monitor quota availability through Census Bureau reports
• Provide detailed chemical purity certificates and CAS number (106-50-3) documentation to confirm classification
• Avoid misclassification as a dye intermediate under Chapter 32 by emphasizing its amine-function primary use
Related Products under HTS 2921.59.40.00
4,4'-Methylenedianiline (MDA)
4,4'-Methylenedianiline is a diphenylmethane-based aromatic polyamine used in polyurethane production and epoxy curing agents. Classified under HTS 2921.59.4000 due to its status as a derivative of aromatic polyamines specified in additional U.S. note 3 to section VI.
2,4-Diaminotoluene
2,4-Diaminotoluene is an aromatic polyamine serving as an intermediate for toluene diisocyanate (TDI) production and hair dyes. It qualifies for HTS 2921.59.4000 as a product enumerated in additional U.S. note 3 to section VI for this amine-function compound.
4,4'-Diaminodiphenylmethane
4,4'-Diaminodiphenylmethane, also known as DDM, is an aromatic polyamine used in epoxy resin curing and polyimide synthesis. It is covered by HTS 2921.59.4000 as a derivative specified in additional U.S. note 3 to section VI.
m-Phenylenediamine
m-Phenylenediamine is an aromatic diamine used in epoxy resins, polyurethanes, and as a dye intermediate. This product is classified in HTS 2921.59.4000 because it matches chemicals described in additional U.S. note 3 to section VI.
2,2'-Dichlorobenzidine
2,2'-Dichlorobenzidine is a halogenated aromatic polyamine used in azo pigment manufacturing. It falls under HTS 2921.59.4000 as a derivative listed in additional U.S. note 3, consistent with Chapter 29 provisions for halogenated amines.
3,3'-Dichloro-4,4'-diaminodiphenylmethane
This chlorinated aromatic polyamine serves as a curing agent for epoxy resins and polyurethane systems. Classified in HTS 2921.59.4000 per its inclusion in additional U.S. note 3 to section VI for specified aromatic amine derivatives.