2930.90.92.51/S-Phenyl Thioacetate/Japan

S-Phenyl Thioacetate from Japan

S-Phenyl thioacetate serves as a protected thiol equivalent in organic synthesis, releasing thiophenol under specific conditions. Under HTS 2930.90.92.51 as other organo-sulfur with S-C and C=O functions. Used in peptide and natural product synthesis.

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

• HPLC purity certificate (>98%) essential for reagent classification

• Stable solid form reduces HazMat shipping costs vs. liquid thiols

• Verify no peroxide formation during storage; common stability issue