2,3-Dichlorobutane from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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