3-Methyl-5-Pyrazolone Powder from China
Pure 3-Methyl-5-pyrazolone is a heterocyclic compound featuring an unfused pyrazole ring with a methyl group at position 3, classified under HTS 2933.19.70.00 as a nitrogen-heterocyclic compound containing a pyrazole ring structure. It serves as a key intermediate in organic synthesis for dyes and pharmaceuticals.
Duty Rate — China → United States
37.5%
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide Certificate of Analysis (COA) confirming 99%+ purity and pyrazole structure to avoid reclassification
• Ensure proper Hazard Communication labeling as it may be irritant; comply with TSCA for US chemical import
• Declare exact CAS number (108-49-6) on entry documents to prevent customs holds