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2930.90.92.51/4-Mercaptophenol/Japan

4-Mercaptophenol from Japan

4-Mercaptophenol is an aromatic organo-thiol used in polymer synthesis and as a corrosion inhibitor. HTS 2930.90.92.51 as other organo-sulfur compound combining phenolic and thiol functions. Off-white solid with dual reactivity.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Melting point (32°C) testing confirms purity grade

• Oxidation-sensitive; nitrogen blanket packaging required

• Dual phenolic/thiol classification requires sulfur-dominant documentation

4-Mercaptophenol from Japan — Import Duty Rate | HTS 2930.90.92.51