Dicofol Reference Standard USP from Mexico
Dicofol Reference Standard USP is certified reference material of 1,1-Bis(4-chlorophenyl)-2,2,2-trichloroethanol for analytical calibration of pesticide residues. Classified under HTS 2906.29.30.00 due to specific chemical naming despite reference use. Provided with traceability to NIST standards.
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
• Reference standards exempt from EPA pesticide registration but require analytical use declaration
• Must include assigned purity value and uncertainty; generic 'technical grade' rejected
• Class 9 miscellaneous dangerous goods; air shipment common pitfall is lithium battery confusion