4-Hydroxy-2-butanone
4-Hydroxy-2-butanone is an acyclic ketone-alcohol with the hydroxyl group at the terminal position and ketone at carbon 2. It qualifies under HTS 2914.40.90.00 as a ketone-alcohol not elsewhere specified. Used as a flavor intermediate and polymer precursor.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If keto-esters rather than keto-alcohols
Esters of ketone function compounds classified in 2914.60 per chapter ester notes.
If diluted to <85% purity in water
Chapter note (d) excludes aqueous solutions below purity threshold.
If classified primarily by alcohol function
Alcohol priority over ketone in some acyclic structures per numerical order rule.
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Import Tips & Compliance
• For food contact applications, include FDA GRAS status or equivalent documentation
• Monitor for auto-oxidation products; peroxide value testing prevents rejection
• Small package quantities (<1kg) may qualify for research exemption
Related Products under HTS 2914.40.90.00
4-Hydroxy-4-methyl-2-pentanone
4-Hydroxy-4-methyl-2-pentanone is a ketone-alcohol featuring both a ketone functional group and a hydroxyl group on adjacent carbons. It falls under HTS 2914.40.90.00 as a ketone-alcohol not specifically enumerated elsewhere in the heading. This compound is used as a chemical intermediate in organic synthesis.
1-Hydroxyacetone (Hydroxyacetone)
1-Hydroxyacetone contains both ketone and primary alcohol functional groups, qualifying as a ketone-alcohol under heading 2914.40. This simple alpha-hydroxyketone is used in pharmaceutical synthesis and as a biochemical reagent. It appears in HTS 2914.40.90.00 as 'other' ketone-alcohols.
2-Hydroxy-2-methyl-1-phenylpropan-1-one
This aromatic ketone-alcohol combines a benzoyl ketone group with a tertiary alcohol functionality. Classified under HTS 2914.40.90.00 as an 'other' ketone-alcohol with additional oxygen function. Used in photoinitiator manufacturing and polymer chemistry.
1-(4-Hydroxyphenyl)-2-propanone
This phenolic ketone-alcohol features a para-hydroxyphenyl group attached to a propanone chain. Falls under HTS 2914.40.90.00 as a ketone-alcohol with phenolic hydroxy function. Important intermediate for pharmaceuticals and antioxidants.
3-Hydroxy-3-methyl-2-butanone
3-Hydroxy-3-methyl-2-butanone is a branched ketone-alcohol with geminal substitution at the hydroxy-bearing carbon. Classified in HTS 2914.40.90.00 as an 'other' ketone-alcohol. Serves as intermediate in terpene synthesis and fragrance chemistry.
2,6-Dimethyl-6-hepten-2-ol Ketone Derivative
This unsaturated ketone-alcohol contains both allylic alcohol and methyl ketone functionalities. HTS 2914.40.90.00 classification as ketone-alcohol with other oxygen function. Used in vitamin A synthesis and polymer modifiers.