Distilled Trimethyl Phosphite 98% from Mexico
Vacuum-distilled trimethyl phosphite at 98% purity for pharmaceutical phosphonate synthesis. HTS 2920.23.00.00 as chemically defined phosphite ester.
Duty Rate — Mexico → United States
13.7%
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
• FDA prior notice if pharma intermediate; GMP cert for distilled grades
• Test for methanol content (<0.5%) to confirm ester integrity
• Declare CAS 121-45-9 explicitly on commercial invoice