3-Carboxy-1,4-sulfophenylpyrazol-5-one from Germany
This sulfonic/carboxy substituted pyrazolone is named in HTS 2933.19.08.00 as aromatic pyrazole compound. Unfused pyrazole ring with nitrogen hetero-atoms fits Chapter 29. Essential intermediate for acid dyes and pharmaceuticals.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Water-soluble sulfonic acids require special waste handling manifests
• pH adjustment documentation needed for stability during transport
• Verify dual acid functions don't trigger Chapter 28 inorganic classification