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2931.90.90.25/Distilled Tetrabutyltin (Lab Grade)/Japan

Distilled Tetrabutyltin (Lab Grade) from Japan

Laboratory reagent grade Tetrabutyltin, vacuum distilled for high purity, classified under HTS 2931.90.90.25. The organotin structure with four butyl groups directly bonded to tin qualifies per heading 2931 definitions.

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

• Include lab analysis confirming >98% purity and C-Sn bonding

• Register as List I chemical if DEA controlled precursors present

• Small package exemption may apply for research quantities <100g

Distilled Tetrabutyltin (Lab Grade) from Japan — Import Duty Rate | HTS 2931.90.90.25