1,4-Phenylene Diacetic Acid from Mexico
This para-substituted aromatic diacetic acid used in liquid crystal polymers and pharmaceuticals. Methylene spacer provides flexibility vs dicarboxylic acids. HTS 2917.39.70.00 aromatic polycarboxylic acid classification.
Duty Rate — Mexico → 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
• Acetic acid derivatives confirmed aromatic via benzene substitution
• LCD manufacturers require <5ppm chlorides specification
• Chapter 29 requires single compound identity vs Chapter 38 mixtures