Butyl Methyl Ether from Japan

Butyl methyl ether is an acyclic mixed ether from monohydric butanol and methanol, used in organic synthesis and as a reaction medium. It falls under HTS 2909.19.18.00 as an 'other' ether of monohydric alcohols, satisfying Chapter 29 definitions for acyclic structures. The unsymmetrical structure distinguishes it from symmetrical dialkyl ethers.

Duty Rate — Japan → United States

15%

Rate breakdown

9903.04.629.5%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

• Specify n-butyl vs iso-butyl isomer in documentation to confirm classification

• Include GC-MS analysis confirming ether purity and absence of alcohol precursors

• Use nitrogen blanketing recommendation for storage stability