2-Methyl-2-Butanol (tert-Amyl Alcohol) from Japan
2-Methyl-2-butanol is a tertiary C5 acyclic alcohol technically classified as butanol derivative under HTS 2905.14.5050 due to its saturated monohydric structure. Primarily used as a gasoline anti-knock additive.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide ASTM D7860 analysis confirming >96% purity for fuel additive specifications
• EPA registration may be required if marketed as fuel additive; verify TSCA inventory status
• Segregate from primary alcohols during storage to prevent trans-esterification reactions