Homovanillic Acid from Germany
Homovanillic acid (4-hydroxy-3-methoxyphenylacetic acid) is an aromatic carboxylic acid with phenolic alcohol function, no additional oxygen beyond heading scope. HTS 2918.19.31.00 applies to this 'other' aromatic compound, common in biochemical research and neurotransmitter metabolite analysis.
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
• Document use as lab reagent to avoid pharma exclusions; confirm <1% impurities per note 1(a)
• Bulk imports need stabilizer declarations