2932.99.90/1,3,5-Trioxane Crystals/Japan

1,3,5-Trioxane Crystals from Japan

1,3,5-Trioxane forms six-membered ring with three oxygen hetero-atoms from formaldehyde cyclization. Used in polymers despite chapter note exclusion reference. HTS 2932.99.90 as defined oxygen heterocycle.

Duty Rate — Japan → United States

3.7%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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Import Tips

• Acid stabilizer prevents depolymerization during shipping

• Melting point 62°C confirms crystalline form

• Distinguish from paraformaldehyde (Chapter 39)

1,3,5-Trioxane Crystals from Japan — Import Duty Rate | HTS 2932.99.90