Products described in additional U.S. note 3 to section VI
Amine-function compounds > Aromatic polyamines and their derivatives; salts thereof: > Other: > Other: > Products described in additional U.S. note 3 to section VI
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2921.59.40.00
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.
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.
o-Tolidine (2,2'-Dimethylbenzidine)
o-Tolidine is a dimethyl-substituted aromatic diamine used in pigment synthesis and analytical reagents. It is subject to HTS 2921.59.4000 classification due to its designation in additional U.S. note 3 to section VI.
4,4'-Diamino-3,3'-dimethylbiphenyl
This biphenyl-based aromatic polyamine functions as an intermediate for high-performance polymers and dyes. HTS 2921.59.4000 applies as it is described among products in additional U.S. note 3 to section VI.
2,4,6-Trichloro-1,3-diaminobenzene
A highly chlorinated aromatic polyamine used in specialty herbicides and dye intermediates. Falls under HTS 2921.59.4000 pursuant to additional U.S. note 3 listing for this amine-function compound.