Technical Grade 4,4'-Methylenedianiline with Stabilizer
Technical grade 4,4'-methylenedianiline containing impurities or added stabilizers for preservation/transport, still primarily the named compound. Classified under HTS 2921.59.3000 as chapter note (f) allows stabilizers without changing the principal classification. Intended for polyurethane precursor manufacturing.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stabilizer or anti-dusting agent renders it suitable for specific non-general use
Chapter note (g) exclusions push to mixtures/preparations in 3824 if additions adapt beyond identification/safety.
If processed into polycarbonates or phenolic derivatives
Aromatic polycarboxylic acids or derivatives from polyamines may classify under 2917 based on functional group priority.
If for polymerized forms used in resins
Polyurethane prepolymers from MDA classify as polymers in Chapter 39 rather than monomers.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document stabilizer composition (<1% typically) to confirm it meets 'necessary for preservation' criteria in chapter notes
• Use UN-approved drums for import; test for stabilizer volatility to prevent off-gassing issues
• Monitor MFN duty rates and Section 301 tariffs applicable to Chinese-origin MDA
Related Products under HTS 2921.59.30.00
4,4'-Methylenedianiline (MDA)
4,4'-Methylenedianiline is a specific aromatic polyamine compound with the chemical formula C13H14N2, consisting of two aniline groups linked by a methylene bridge. It falls under HTS 2921.59.3000 as it is explicitly named in the tariff schedule within the subheading for other aromatic polyamines and their derivatives. This chemically defined organic compound is used primarily in industrial chemical synthesis.
4,4'-Methylenedianiline Dihydrochloride Salt
This is the dihydrochloride salt form of 4,4'-methylenedianiline, a derivative where the amine groups are protonated with HCl. It remains classified under HTS 2921.59.3000 as salts of aromatic polyamines are included with the parent compound per chapter note 3(C)(1). Used in specialized chemical processes requiring the salt for solubility.
High Purity 4,4'-Methylenedianiline Flakes
High purity (>99%) 4,4'-methylenedianiline supplied in flake form for precise industrial dosing in isocyanate reactions. Explicitly under HTS 2921.59.3000 as the pure, chemically defined aromatic polyamine matching the tariff description. Critical intermediate for MDI production.
4,4'-Methylenedianiline Aqueous Solution 20%
20% aqueous solution of 4,4'-methylenedianiline, prepared as a normal transport method per chapter note (d). Remains classified under HTS 2921.59.3000 as the dissolved chemically defined compound. Used for safer handling in formulation plants.