Spiropentane from Canada
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 — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
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