Research-Grade Isoprene (98% purity) from Japan
Laboratory reagent grade isoprene packaged in 100g glass ampoules for chemical synthesis research. Meets Chapter 29(a) definition of separate chemically defined compound with controlled impurities. Falls specifically under 2901.24.50.00 as 'other' isoprene form.
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
• Include GC-MS analysis certificate verifying isoprene ≥98% and impurity profile for customs chemical verification
• Small package exemption may apply for lab quantities <1L but still requires UN2357 proper shipping name
• Avoid misclassification as Chapter 38 reagent preparation; remains Chapter 29 due to chemical purity dominance