Norbornane Diazo Ester from Canada
1-Naphthalenesulfonic acid, 6-diazo-5,6-dihydro-5-oxo-,(octahydro-4,7-methano-1H-indene-2,5-diyl) bis-(methylene) ester, a diazo compound featuring norbornane structure used in specialty polymer crosslinking applications. This exact chemical is enumerated in HTS 2927.00.18.00 under diazo compounds of Chapter 29.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Import with full synthetic pathway documentation proving structure matches tariff nomenclature exactly
• Hazardous material shipping requirements apply (ORM-D or proper UN number); verify DG compliance
• Avoid classification error as general organo-sulfur under 2930—diazo function takes precedence per Chapter 29 notes