2903.92.00.00/p,p'-DDT Isomeric Standard 98% Purity/Canada

p,p'-DDT Isomeric Standard 98% Purity from Canada

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 — Canada → United States

5.5%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

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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