N1,N4-Dimethyl-N1-(2,3-dihydroxypropyl)-3-nitro-1,4-phenylenediamine from China
A specialized amino-alcohol with dihydroxypropyl substitution, nitro, and dimethyl groups on phenylenediamine core, explicitly covered by this subheading. Falls under 2922 as 'other' aromatic amino-alcohols; note the single type of oxygen function (alcohol) despite multiple groups. Used in high-performance permanent hair coloring agents.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Confirm via HPLC that compound matches exact specification; impurities >1% may trigger review
• Use UN-approved packaging for nitro-organic sensitivity; declare PGIII if applicable
• Document end-use as chemical intermediate to prevent cosmetic classification