2,3-Dichlorobutane from China
2,3-Dichlorobutane is an isomer with chlorine atoms on the second and third carbons of butane, fitting precisely within the dichlorobutanes provision of HTS 2903.19.05.00 for saturated chlorinated acyclic hydrocarbons. Commonly employed in organic synthesis research and as a specialty solvent. Meets Chapter 29 criteria as a separate chemically defined compound.
Duty Rate — China → United States
40.1%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Provide NMR or GC-MS spectra confirming isomer purity to support classification
• Ensure stabilizers (if added) comply with Chapter 29 note (f) for preservation only
• Avoid retail packaging which might trigger Chapter 38 retail set exclusions