o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof
Amine-function compounds. > Aromatic polyamines and their derivatives; salts thereof: > o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof > o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof
Duty Rate (from China)
Subheadings
Products classified under Tariff item 2921.51.00
1,4-Diaminobenzene (p-Phenylenediamine Base)
>- 1,4-Diaminobenzene (p-phenylenediamine base) is used in photographic chemicals and dyes. It is specifically named in tariff item 2921.51.00, which covers p-phenylenediamine and its derivatives and salts.
2,4-Diaminotoluene (2,4-TDA)
>- 2,4-Diaminotoluene (2,4-TDA) is a diaminotoluene isomer used in polyurethane elastomers, dyes, and hair colorants. It is specifically named in tariff item 2921.51.00, which covers diaminotoluenes and their derivatives and salts.
2,4-Diaminotoluene (2,4-Toluenediamine)
>- 2,4-Diaminotoluene (2,4-toluenediamine) is a diaminotoluene isomer used in dyes, polymers, and as a chain extender. It is specifically named in tariff item 2921.51.00, which covers diaminotoluenes and their derivatives and salts.
2,5-Diaminotoluene Sulfate
>- 2,5-Diaminotoluene sulfate is a salt used primarily in permanent hair coloring formulations. Under Chapter 29 note 5(C)(1), salts of organic compounds are classified with the parent compound, so this salt of a diaminotoluene falls under tariff item 2921.51.00.
2,6-Diaminotoluene
>- 2,6-Diaminotoluene is a diaminotoluene isomer used as a dye intermediate and polymer modifier. It is a diaminotoluene derivative explicitly named in tariff item 2921.51.00, which covers diaminotoluenes and their derivatives and salts.
4-Amino-2-(N,N-Diethylamino)Toluene Hydrochloride
>- 4-Amino-2-(N,N-diethylamino)toluene hydrochloride is a substituted diaminotoluene salt used as a specialty dye intermediate for reactive dyes. As a salt of a diaminotoluene derivative, it falls under tariff item 2921.51.00, which covers o-, m-, p-phenylenediamine, diaminotoluenes, and their derivatives and salts.
m-Phenylenediamine
>- m-Phenylenediamine (1,3-diaminobenzene) is an aromatic diamine used as a building block for isocyanates, epoxy resins, and hair dyes. It is explicitly named in tariff item 2921.51.00, which covers m-phenylenediamine and its derivatives and salts.
o-Phenylenediamine
>- o-Phenylenediamine (1,2-diaminobenzene) is an aromatic diamine used as an intermediate in the synthesis of dyes, pharmaceuticals, and agrochemicals. It is specifically named in tariff item 2921.51.00, which covers o-phenylenediamine and its derivatives and salts.
o-Phenylenediamine Dihydrochloride
>- o-Phenylenediamine dihydrochloride is the dihydrochloride salt of o-phenylenediamine, used in pharmaceutical synthesis and as an analytical reagent. Under Chapter 29 note 5(C)(1), inorganic salts of organic compounds are classified with the parent organic compound, so this salt falls under tariff item 2921.51.00.
p-Phenylenediamine (1,4-Diaminobenzene)
>- p-Phenylenediamine (1,4-diaminobenzene) is widely used in permanent hair colorants and as an antioxidant. It is specifically named in tariff item 2921.51.00, which covers p-phenylenediamine and its derivatives and salts.
p-Phenylenediamine Sulfate
>- p-Phenylenediamine sulfate is a salt derivative of p-phenylenediamine used primarily in oxidative hair dyes and rubber antioxidants. Under Chapter 29 note 5(C)(1), salts of organic compounds are classified with the parent compound, so this salt falls under tariff item 2921.51.00.
Technical Grade Toluene-2,4-Diamine (98% purity)
>- Technical grade toluene-2,4-diamine at 98% purity is used in TDI manufacturing. Although it contains minor isomers, the principal compound is toluene-2,4-diamine, which is specifically named in tariff item 2921.51.00. Chapter note 1(b) allows mixtures of isomers of the same organic compound to be classified in this chapter.
Toluene-2,4-Diamine
>- Toluene-2,4-diamine (2,4-TDA) is a diaminotoluene isomer essential for polyurethane production and toluene diisocyanate (TDI) synthesis. It is specifically named in tariff item 2921.51.00, which covers diaminotoluenes and their derivatives and salts.
Toluene-2,5-Diamine
>- Toluene-2,5-diamine is used in permanent hair dyes and as a photographic chemical intermediate. It is a diaminotoluene isomer explicitly named in tariff item 2921.51.00, which covers diaminotoluenes and their derivatives and salts.
Toluene-2,5-Diamine Sulfate
>- Toluene-2,5-diamine sulfate is the sulfate salt of toluene-2,5-diamine, used primarily in oxidative hair colorants for its stability. Under Chapter 29 note 5(C)(1), salts of organic compounds are classified with the parent compound, so this salt falls under tariff item 2921.51.00.