Tetrazolium Blue Chloride from Japan
Diazo-tetrazolium salt used in photographic redox imaging and viability staining for film quality control. HTS 2927.00.25.00 covers this as a photographic chemical despite dual lab uses.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Emphasize photographic end-use over biological to secure preferred tariff treatment
• Include SDS with GHS classification for diazo salt hazards
• Limit quantity per shipment to avoid bulk chemical mixture scrutiny