Glyoxal Anhydrous Crystals from China
Anhydrous glyoxal in crystalline form (hydrate-free) for specialty polymer synthesis. Pure CHOCHO classified specifically under HTS 2912.19.30.00 as acyclic aldehyde without other oxygen function. Rare form due to polymerization tendency during storage.
Duty Rate — China → United States
38.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Provide polymerization inhibitor analysis (<0.1%) to confirm anhydrous stability per Chapter 29 stabilizer provisions
• Declare crystal water content (<0.5%) via Karl Fischer titration to distinguish from aqueous solutions
• Special UN-approved packaging required for self-reactive substances