2930.90.92/2-Mercaptoethanol/Japan

2-Mercaptoethanol from Japan

2-Mercaptoethanol (HS-CH2CH2OH) contains both thiol (-SH) and alcohol (-OH) groups with sulfur directly linked to carbon. Classified in 2930.90.92 as other organo-sulfur compound taking precedence in numerical order. Common biochemical reagent for protein denaturation.

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

• Include end-use statement distinguishing lab reagent from industrial solvent to prevent reclassification

• Hazard class 6.1 (toxic liquid); ensure proper UN2922 packaging and marking

• Certificate of analysis required to verify >98% purity for Chapter 29 classification