2921.59.80/4,4'-Diaminodiphenylmethane (DADPM)/Japan

4,4'-Diaminodiphenylmethane (DADPM) from Japan

4,4'-Diaminodiphenylmethane (DADPM), also known as MDA, is a key aromatic polyamine used in epoxy resin curing and polyurethane production. Classified under HTS 2921.59.80 as an 'other' derivative of aromatic polyamines, it features two aniline rings linked by a methylene group, fitting Chapter 29's amine-function compounds not covered by prior subheadings.

Duty Rate — Japan → United States

6.5%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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Import Tips

• Submit detailed structural formula and IUPAC name in entry docs to distinguish from toluidine derivatives in 2921.51

• Comply with REACH/TSCA pre-registration for this high-concern substance; include hazard classifications

• Watch for anti-dumping duties if sourced from specific countries; check Commerce Department notices