4,4'-Methylene bis(2,6-Diisopropylaniline)

This sterically hindered diarylamine with isopropyl substituents is specifically identified in HTS 2921.59.1700. It functions as a high-performance antioxidant stabilizer for polyolefins and synthetic lubricants.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3812Lower: 15% vs 35%

If rubber accelerator grade

Compounded forms for rubber exceed pure compound classification.

2909.30Lower: 15.5% vs 35%

If aromatic ether derivative

Ether functions take precedence over amine in classification order.

Not sure which classification is right?

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Import Tips & Compliance

Specify alkyl chain analysis to confirm diisopropyl substitution

TSCA reporting required for >10,000 lbs/year imports

Distinguish from diethyl analog with GC-MS data

Related Products under HTS 2921.59.17.00

4,4'-Benzidine-2,2'-Disulfonic Acid

4,4'-Benzidine-2,2'-disulfonic acid is a specific aromatic polyamine derivative with two sulfonic acid groups, explicitly listed under HTS 2921.59.1700. It is a chemically defined organic compound used primarily as an intermediate in dye and pigment synthesis.

4,4'-Methylene bis(2,6-Diethylaniline)

This diarylamine compound featuring a methylene bridge between two substituted aniline rings is explicitly covered by HTS 2921.59.1700 as an aromatic polyamine. It functions as an antioxidant intermediate and polymer modifier.

m-Xylene Diamine

m-Xylene diamine (2,4-diaminotoluene) is a meta-substituted xylylene diamine explicitly listed under HTS 2921.59.1700 for aromatic polyamines. It is widely used in epoxy resin curing agents and polyimide synthesis.

3,3'-Diaminobenzidine (Tetraaminobiphenyl)

3,3'-Diaminobenzidine, a tetrafunctional aromatic polyamine also called tetraaminobiphenyl, is named in HTS 2921.59.1700. It is essential for polybenzimidazole polymers and high-performance engineering plastics.

4,4'-Methylene bis(3-Chloro-2,6-Diethylaniline)

A chlorinated derivative of methylene dianiline explicitly listed under HTS 2921.59.1700, featuring both chloro and ethyl substituents. Used in specialty polymer antioxidants and flame retardant synergists.

1,4-Diaminobenzene-2-Sulfonic Acid

Also known as 4-amino-2-aminobenzenesulfonic acid, this aromatic diamine with a sulfonic acid substituent is specifically named in HTS 2921.59.1700. It serves as a key building block for azo dyes and pharmaceutical intermediates.