Spiropentane from Japan
Spiropentane (C5H8) features two fused cyclopropane rings at a single carbon atom, classifying it as a unique cyclane under HTS 2902.19.0050. Primarily used in advanced organic chemistry research.
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 peer-reviewed structural characterization data confirming spiro[2.2]pentane identity
• Handle as pyrophoric material requiring Schlenk line techniques and argon atmosphere
• Limit import quantities under DEA research chemical protocols if applicable