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
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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