Cyclopentyl-(Dibutylamino)propylidene Phosphonamidic Fluoride Methyl Salt from Germany
Alkylated salt form of cyclopentyl-derived phosphonamidic fluoride with dibutylamino group (C4 chains), fitting HTS 2931.59.0030 inclusion of corresponding salts. Used in asymmetric synthesis where chirality at phosphorus is critical. Chapter notes confirm salts classified with parent fluoride.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide chirality specification (R/S at P) and ee% for research chemical imports
• Customs may require proof alkyl chains ≤C10 via GC-MS of hydrolyzed derivatives