NMR-Grade Triphenylmethyl Chloride from Mexico
Ultra-pure NMR-grade triphenylmethyl chloride is a separate chemically defined compound under HTS 2903.99.15.00, ideal for spectroscopic analysis and research in aromatic halogenation chemistry. Its triphenylmethyl chloride structure fits the specific subheading.
Duty Rate — Mexico → United States
10%
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
• Include NMR spectra in CoA for purity verification; import under academic exemptions if for university use; ensure inert atmosphere packaging