2,3-Dichlorobutane from Mexico
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 — Mexico → United States
15.1%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
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