Dibutyl Phosphite from China
Dibutyl phosphite (BuO)2P(O)H is a reactive organophosphorus compound used in flame retardants and pesticides. HTS 2931.49.00 covers it as non-halogenated organo-phosphorus derivative. Contains P-C bond through butyl chains and P-H functionality.
Duty Rate — China → United States
3.7%
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
Import Tips
• Classify as UN 3082 Environmentally Hazardous Substance for ocean transport
• Confirm P-H bond via FTIR spectrum to distinguish from dibutyl phosphate
• EPA pre-manufacture notice may apply for first-time US imports