2932.99.90/1,4-Dioxane Laboratory Reagent/Japan

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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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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