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
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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