2-Chloro-5-sulfophenylmethylpyrazolone from China
This is a specific aromatic pyrazolone derivative containing a chlorine and sulfonic acid group on a phenyl ring attached to a pyrazole structure. It falls under HTS 2933.19.18.00 as one of the explicitly named heterocyclic compounds with an unfused pyrazole ring that is aromatic or modified aromatic. Primarily used as an intermediate in dye synthesis and pharmaceutical production.
Duty Rate — China → United States
35%
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 detailed chemical analysis certificates confirming purity and structure; ensure proper UN hazardous material labeling for sulfonic acid content; avoid misclassification by verifying pyrazole ring integrity