Guaiacol Phosphate from China
Guaiacol phosphate represents phosphorylated derivatives of guaiacol used in specialized pharmaceutical applications and organophosphorus synthesis. As an organo-inorganic compound derived from ether-phenol, classified under HTS 2909.50.20.00 before heading 2931 provisions. Industrial chemical import.
Duty Rate — China → United States
43%
Rate breakdown
9903.88.0325%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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include phosphorus NMR confirming direct ether-phenol phosphate linkage without metal coordination
• Declare phosphorus content; high levels may trigger hazardous material documentation
• Avoid aqueous solutions exceeding chapter note (d) limits to maintain pure compound status