1,4-Dioxane Laboratory Reagent from Japan
1,4-Dioxane is a six-membered heterocyclic ring with two oxygen hetero-atoms, commonly used as a solvent in labs and extractions. Falls under HTS 2932.99.90 as other heterocyclic compounds with oxygen only. Stabilized grades must meet Chapter 29 note (f) to remain classified here.
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
• Include stabilizer declaration if present; must be solely for preservation/transport per note (f) or risks Chapter 38 classification
• Laboratory grade requires COA showing <50 ppm impurities to qualify as chemically defined compound