DDT (Dichlorodiphenyltrichloroethane) USP Reference Standard from United States
DDT (Dichlorodiphenyltrichloroethane) USP Reference Standard is a highly purified form of DDT (clofenotane, INN), specifically 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane. It is used as an analytical reference standard for residue testing in laboratories. This product is a separate chemically defined organic compound, meeting the criteria of Chapter 29 Note 1(a), and is explicitly named under tariff item 2903.92.00.
Duty Rate — United States → Canada
Import Tips
• Ensure the product is labeled as a laboratory reference standard and not for pesticide use, as DDT is restricted under Canadian environmental regulations
• Include a certificate of analysis to confirm purity and chemical identity for CBSA classification
• Verify if a permit is required under the Canadian Environmental Protection Act for importation