4-Amino-2-stilbenesulfonic acid and its salts;p-Ethylaniline; 2,4,6-Trimethylaniline (Mesidine); 2,3-Xylidine; 2,4-Xylidine; 2,5-Xylidine; and 3,4-Xylidine
Amine-function compounds > Aromatic monoamines and their derivatives; salts thereof: > Other: > 4-Amino-2-stilbenesulfonic acid and its salts;p-Ethylaniline; 2,4,6-Trimethylaniline (Mesidine); 2,3-Xylidine; 2,4-Xylidine; 2,5-Xylidine; and 3,4-Xylidine
Duty Rate (from China)
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
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2921.49.10.00
4-Amino-2-stilbenesulfonic acid
4-Amino-2-stilbenesulfonic acid is a specific aromatic amine derivative with a sulfonic acid group, explicitly listed under HTS 2921.49.10.00. It is primarily used as an intermediate in the production of optical brightening agents for textiles, paper, and detergents. This chemically defined compound falls within Chapter 29 for separate organic compounds with amine-function groups.
2,4,6-Trimethylaniline (Mesidine)
Mesidine, or 2,4,6-trimethylaniline, is a sterically hindered aromatic amine listed under HTS 2921.49.10.00, used in synthesis of pharmaceuticals, pesticides, and polymer additives. As a chemically defined aromatic monoamine derivative, it properly falls in Chapter 29.
2,4-Xylidine
2,4-Xylidine (2,4-dimethylaniline), explicitly named in HTS 2921.49.10.00, is widely used in herbicide synthesis (e.g., diuron), dyes, and rubber antioxidants. As a pure aromatic monoamine derivative, it belongs in Chapter 29 heading 2921.
3,4-Xylidine
3,4-Xylidine (3,4-dimethylaniline), the final specifically named compound in HTS 2921.49.10.00, serves as intermediate for antioxidants, dyes, and agrochemicals. This ortho/para substituted aromatic monoamine is properly classified in Chapter 29.
p-Ethylaniline
p-Ethylaniline (4-ethylaniline) is an aromatic monoamine explicitly named in HTS 2921.49.10.00, used as a chemical intermediate in agrochemicals, pharmaceuticals, and dye manufacturing. Its amine-function structure on a benzene ring with ethyl substituent qualifies it as a derivative under Chapter 29 heading 2921.
2,3-Xylidine
2,3-Xylidine (2,3-dimethylaniline) is one of the specific xylidine isomers listed in HTS 2921.49.10.00, serving as an intermediate for azo dyes, pharmaceuticals, and UV stabilizers. This aromatic amine with two methyl groups on adjacent ring positions fits Chapter 29 amine-function compounds.
2,5-Xylidine
2,5-Xylidine (2,5-dimethylaniline) listed under HTS 2921.49.10.00 is an intermediate for direct dyes, pharmaceuticals, and photographic chemicals. Its aromatic amine structure with meta/para methyl substitution qualifies under Chapter 29.