Dibutyl Oxalate from China

Dibutyl oxalate ((COOC4H9)2) used as plasticizer intermediate and solvent. Classified HTS 2917.11.00.00 as oxalic acid ester following chapter ester rules prioritizing later numerical heading. Colorless liquid with bp 232°C.

Duty Rate — China → United States

40.6%

Rate breakdown

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)

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

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Import Tips

• Refractive index 1.429-1.431 specification confirms ester identity and purity

• UN2788 flammable liquid; flash point 93°C requires Class 3 packaging

• Avoid confusion with adipate esters (2917.12) by providing structural analysis