High-Purity Aniline for MDI Production
Aniline refined for methylene diphenyl diisocyanate (MDI) synthesis, classified as pure aniline HTS 2921.41.10.00 aromatic monoamine before reaction.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If isocyanates formed
Nitrogen-function compounds like MDI later in chapter.
If sulfide intermediates
Organo-sulfur in production chain shifts heading.
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Import Tips & Compliance
• Specify MDI end-use for drawback eligibility; ensure APIN 1547 marking; monitor formaldehyde co-import synergies
Related Products under HTS 2921.41.10.00
Aniline (CAS 62-53-3)
Aniline is a primary aromatic amine with the formula C6H5NH2, classified under HTS 2921.41.10.00 as a chemically defined aromatic monoamine. It serves as a fundamental building block in organic synthesis for dyes, pharmaceuticals, and rubber chemicals.
Aniline Technical Grade 99.9%
Technical grade aniline at 99.9% purity is the industrial standard form of this aromatic monoamine, directly under HTS 2921.41.10.00. Used primarily in manufacturing MDI for polyurethane foams and antioxidants.
Redistilled Aniline
Redistilled aniline is purified aniline via fractional distillation to remove impurities, remaining a separate chemically defined aromatic monoamine under HTS 2921.41.10.00. Essential for high-purity applications in pharmaceuticals.
Aniline USP Grade
Aniline meeting USP pharmacopeia standards is a high-purity aromatic monoamine for intermediate synthesis in drugs, classified under HTS 2921.41.10.00. Meets chapter requirements for chemically defined compounds.
Molten Aniline (heated transport)
Aniline shipped in molten form at elevated temperatures to prevent solidification, still a pure aromatic monoamine under HTS 2921.41.10.00. Common for bulk industrial deliveries without solvent addition.
Aniline with Stabilizer (0.1% diphenylamine)
Aniline stabilized with trace diphenylamine to prevent oxidation, allowed under chapter note (f) as necessary for preservation, retaining HTS 2921.41.10.00 classification. Used in polymer production.