Diethylaminoethyl Cyclohexylphosphonite from Germany
O-cyclohexyl ester variant (C6 cycloalkyl ≤C10) of diethylaminoethyl hydrogen phosphonite, fitting HTS 2931.49.00.08 specifications for alkyl/cycloalkyl esters. Key reagent in Buchwald-Hartwig coupling catalyst preparation.
Duty Rate — Germany → United States
15%
Rate breakdown
9903.04.6211.3%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Cycloalkyl esters require dimensional chain length certification (total ≤C10 equivalent)
• Register with US chemical inventory (TSCA) prior to import for manufacturing use