2942.00.50.00/Triphenylmethyl Chloride (Trityl Chloride)/Japan

Triphenylmethyl Chloride (Trityl Chloride) from Japan

Triphenylmethyl chloride (trityl chloride) is a protecting group reagent for nucleosides and peptides, classified under HTS 2942.00.50.00 as 'other' organic compounds. This triarylmethyl halide is essential in oligonucleotide synthesis.

Duty Rate — Japan → United States

15%

Rate breakdown

9903.04.6211.3%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

• Handle as moisture-sensitive; ship with desiccant and include residual water analysis (<0.1%)

• Declare as UN 1759 (chlorosilanes, corrosive) analog with proper PPE requirements

• Provide end-use statement for oligonucleotide manufacturing to avoid ITC scrutiny