4,4'-Methylenedianiline Dihydrochloride Salt from Canada
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.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Include certificate of analysis (COA) confirming salt purity and absence of free base impurities during customs clearance
• Comply with OSHA carcinogen labeling requirements; MDA salts are handled similarly to the base compound
• Avoid misdeclaration as a general chemical mixture to prevent reclassification and penalties