p,p'-DDT Isomeric Standard 98% Purity from China
Pure p,p'-DDT isomer (1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane) for environmental monitoring and GC-MS calibration. Falls under HTS 2903.92.00.00 as the specifically named DDT compound. Chemically defined per Chapter 29 note (a) with defined impurities.
Duty Rate — China → United States
30.5%
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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Obtain CITES permit for persistent organic pollutant (POP) import; declare analytical use only
• Use secondary containment packaging per EPA P-listed waste regulations during transit
• Validate isomeric purity >95% via NMR certificate to prevent reclassification as isomer mixture