Diethyl Phosphite from Germany
Diethyl phosphite is a colorless liquid organophosphorus compound with the formula (C2H5O)2P(O)H, classified under HTS 2920.22.00.00 as a phosphite ester of an inorganic acid of nonmetal (phosphorous acid). It serves as a key reagent in organic synthesis for producing phosphonate derivatives and flame retardants.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Provide Safety Data Sheet (SDS) and purity certificate confirming >98% diethyl phosphite content to avoid reclassification
• Declare exact CAS number (762-04-9) and ensure proper UN 2845 hazardous material shipping documentation
• Verify inhibitor-free formulations; stabilized versions may require note 2(f) justification under Chapter 29