U.S. imports of Butanols (Other), Including Isobutyl and Tert-Butyl Alcohol (HS 290514) totaled $4.2M in August 2026, imported from 11 countries.
Importers of Butanols (Other), Including Isobutyl and Tert-Butyl Alcohol paid $124K in duties in August 2026, an average duty rate of 2.93% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Butanols (Other), Including Isobutyl and Tert-Butyl Alcohol imports of $4.2M in August 2026 ran 69% above the year-to-date monthly average of $2.5M.
Last updated: August 2026 dataThe 'butanols, NESOI' heading captures butanol isomers not covered by the n-butyl alcohol heading, most notably isobutyl alcohol (2905145010) and tert-butyl alcohol below 99% purity (2905141000), along with residual butanol types (2905145050). Tert-butyl alcohol is a key intermediate in MTBE production and as a pharmaceutical solvent, while isobutyl alcohol serves coatings and flavoring applications. Netherlands and the United Kingdom are the leading US suppliers, reflecting Western Europe's specialty alcohol manufacturing base.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
19 import shipments a month
Line 2905141000 specifically covers tert-butyl alcohol with purity less than 99% by weight. Higher-purity tert-butyl alcohol may be classified differently depending on its form and intended use. Importers should verify purity on the certificate of analysis before filing, as the purity threshold directly determines the applicable 10-digit line.
Both are C4 primary alcohols, but isobutyl alcohol (2-methylpropan-1-ol) has a branched structure that gives it different solvent properties — lower toxicity profile and higher boiling point relative to n-butanol — making it preferred in certain coatings and flavoring applications. For HTS purposes, isobutyl alcohol falls under 2905.14 (line 2905145010), not the dedicated 2905.13 heading reserved for n-butyl alcohol.
Subheading 11 of 20 in heading 2905
Subheading 290514 · $4.2M of $149.6M
Trade Directory
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ImportsExports
Imports
$4.2MYoY · free account
Exports
$2.0MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $24.4M of Butanols (Other), Including Isobutyl and Tert-Butyl Alcohol and exported $33.5M.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2905145050 | Butanols, NESOI | $4.0M | 2.10% | 100.00% | $83K |
| 2905141000 | Tert-Butyl Alcohol, Purity < 99% by Wt | $227K | 16.09% | 100.00% | $37K |
| 2905145010 | 2-Methylpropan-1-Ol (Isobutyl Alcohol) | $28K | 15.11% | 100.00% | $4K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2905141000 | Tert-Butyl Alcohol, Purity Lt 99% by Weight | $1.3M |
| 2905145010 | 2-Methylpropan-1-Ol (Isobutyl Alcohol) | $371K |
| 2905145050 | Butanols, NESOI | $289K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
United Kingdom and Japan together supply 89% of it. China pays 35.2% duty; Italy 0.0%.
customs district
destination
entry
rate provision · imports
duty collected equals 2.93% of imports for consumption.