Dibenzothiophene from China
Dibenzothiophene is a tricyclic aromatic compound with sulfur heterocycle fused between two benzene rings. Classified HTS 2930.90.2900 as aromatic organo-sulfur with S directly linked to aromatic carbons. Common pollutant in petroleum; used in OLED materials research.
Duty Rate — China → United States
31.5%
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)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• GC-MS analysis confirming >99% purity for chemically defined status
• Reference fuel standard applications require NIST traceability certification
• Not classifiable as Chapter 27 hydrocarbon per chapter exclusion