2-Buten-1-ol
2-Buten-1-ol is an unsaturated primary alcohol with the formula C4H8O and a double bond between carbons 2-3, used in flavoring and pharmaceutical intermediates. Classified under HTS 2905.29.90.00 as an 'other' acyclic unsaturated monohydric alcohol. Meets Chapter 29 requirements for chemically defined organic compounds with oxygen function.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If monohydric but saturated
Absence of unsaturation moves it to saturated acyclic alcohols in 2905.19.
If derivative with additional oxygen function (e.g., esterified)
Chapter notes classify esters with the acid-function compound occurring last numerically.
If polyhydric (more than one OH group)
Diols or polyols shift to glycerol or other polyhydric alcohol subheadings.
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Import Tips & Compliance
• Include SDS confirming <99% purity to qualify as separate compound; label as hazardous material (flammable liquid); check for stereoisomer specifications if E/Z isomers mixed
Related Products under HTS 2905.29.90.00
Allyl Alcohol
Allyl alcohol (C3H5OH) is an unsaturated monohydric acyclic alcohol with a carbon-carbon double bond, used primarily as a chemical intermediate in organic synthesis. It falls under HTS 2905.29.90.00 as an 'other' unsaturated monohydric alcohol not specifically enumerated elsewhere in the subheading. This classification aligns with Chapter 29 notes for separate chemically defined organic compounds.
3-Buten-2-ol
3-Buten-2-ol (CH3CH(OH)CH=CH2) is a secondary unsaturated acyclic alcohol serving as an intermediate in organic synthesis and polymer production. It qualifies for HTS 2905.29.90.00 as an unsaturated monohydric alcohol not otherwise specified. Pure form adheres to Chapter 29's chemically defined compound criteria.
2-Methyl-2-propen-1-ol
2-Methyl-2-propen-1-ol, also known as methallyl alcohol, features an acyclic structure with both a methyl group and terminal double bond. Used in resin and adhesive production, it fits HTS 2905.29.90.00 for other unsaturated monohydric alcohols. Chemically defined per Chapter 29 scope.
3-Penten-2-ol
3-Penten-2-ol is an acyclic unsaturated secondary alcohol with five carbons and internal double bond, employed in fragrance synthesis. HTS 2905.29.90.00 covers this as other unsaturated monohydric acyclic alcohol. Excludes mixtures per Chapter notes.
2,4-Hexadien-1-ol
2,4-Hexadien-1-ol features conjugated double bonds in an acyclic chain with primary alcohol function, used in specialty polymer applications. Classifies under HTS 2905.29.90.00 as other unsaturated monohydric alcohol. Pure compound status confirmed by Chapter 29 definitions.
1-Penten-3-ol
1-Penten-3-ol is a leaf alcohol with unsaturated acyclic structure, valued in food flavorings for green notes. HTS 2905.29.90.00 applies to this other unsaturated monohydric alcohol. Qualifies as separate organic compound without excluded additives.