Technical Grade Toluene-2,4-Diamine (98% purity)
Industrial grade toluene-2,4-diamine at 98% purity used in TDI manufacturing. Meets HTS 2921.51.10.00 specific compound criteria despite containing minor isomers, as principal compound is named toluene-2,4-diamine.
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Import Tips & Compliance
• Provide chromatogram showing ≥95% named isomer for specific compound classification
• Declare all isomer content per Chapter 29 impurity tolerances
• Use stainless steel containers to prevent reaction with molten material
Related Products under HTS 2921.51.10.00
o-Phenylenediamine
o-Phenylenediamine is an aromatic diamine (C6H4(NH2)2) used primarily as an intermediate in the synthesis of dyes, pharmaceuticals, and agrochemicals. It falls under HTS 2921.51.10.00 as a specifically named o-phenylenediamine, which is an aromatic polyamine listed in the subheading for o-, m-, p-phenylenediamines and diaminotoluenes.
m-Phenylenediamine
m-Phenylenediamine, also known as 1,3-diaminobenzene, serves as a key building block for isocyanates, epoxy resins, and hair dyes. Classified under HTS 2921.51.10.00 as one of the specifically enumerated m-phenylenediamines, which are aromatic polyamines and their derivatives.
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 qualifies for HTS 2921.51.10.00 as a specifically listed toluene-2,4-diamine, an aromatic polyamine derivative.
Toluene-2,5-Diamine
Toluene-2,5-diamine is used in permanent hair dyes and as a photographic chemical intermediate. It is explicitly named in HTS 2921.51.10.00 under diaminotoluenes, fitting the aromatic polyamine definition of the subheading.
Toluene-2,5-Diamine Sulfate
Toluene-2,5-diamine sulfate is the salt form used primarily in oxidative hair colorants for its stability. HTS 2921.51.10.00 specifically includes this salt as a derivative of the named diaminotoluene under aromatic polyamine salts.
4-Amino-2-(N,N-Diethylamino)Toluene Hydrochloride
This substituted diaminotoluene hydrochloride is a specialty dye intermediate for reactive dyes. It is precisely named in HTS 2921.51.10.00 as an aromatic polyamine derivative salt within the diaminotoluene category.