Spiropentane from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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