1,4-Dioxane ACS Reagent Grade from China
1,4-Dioxane is a six-membered heterocyclic ring with two oxygen hetero-atoms, widely used as a solvent in chemical analysis and pharmaceutical processing. This ACS reagent grade meets purity standards for laboratory use under HTS 2932.99.90.90 as other heterocyclic oxygen compounds. It qualifies as a separate chemically defined compound per Chapter 29 scope.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.6096.3%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include SDS with dioxane content >99% and residual ethylene oxide levels to satisfy EPA import notifications
• Declare exact water content (<0.5%) as aqueous solutions may classify differently under Chapter notes