2930.90.49.20/2-Mercaptobenzoic Acid/Japan

2-Mercaptobenzoic Acid from Japan

2-Mercaptobenzoic acid (thiosalicylic acid) combines aromatic carboxylic acid with ortho-mercapto group. Classified in HTS 2930.90.4920 as aromatic mercaptocarboxylic acid under organo-sulfur compounds. Key intermediate for thioindigo dyes and pharmaceuticals.

Duty Rate — Japan → United States

15%

Rate breakdown

9903.04.6210.8%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate

9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

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Import Tips

• Verify aromatic ring via UV spectroscopy; CAS 49-58-3 confirms 2930.90.4920 status

• Light-sensitive; ship in amber containers with nitrogen blanket to prevent oxidation

• Differentiate from 2930.30 by confirming free mercapto vs thiocarbonate ester