Isobutyric Acid
Isobutyric acid (2-methylpropanoic acid) is a saturated acyclic monocarboxylic acid used in organic synthesis, flavor production, and as an intermediate for pharmaceuticals. It falls under HTS 2915.90.50 as a chemically defined saturated acyclic monocarboxylic acid not specifically named elsewhere in heading 2915.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as a saturated acyclic polycarboxylic acid
Products with multiple carboxyl groups classify under later numerical heading 2915.70 per Chapter 29 classification note.
If imported as mixture with >50% impurities or solvents
Mixtures not meeting 'chemically defined' criteria per Chapter 29 note (a) fall under prepared chemical mixtures.
If imported as metal salt (e.g., calcium isobutyrate)
Inorganic salts of organic acids classify with parent acid per Chapter 29 note on salts, but alcoholates follow alcohols.
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Import Tips & Compliance
• Verify purity certificate (≥98%) to confirm classification as chemically defined compound per Chapter 29 note (a)
• Include Material Safety Data Sheet (MSDS) showing it's not halogenated/sulfonated to avoid reclassification
• Declare exact CAS number (79-31-2) on entry documents to prevent customs disputes
Related Products under HTS 2915.90.50
Pivalic Acid
Pivalic acid (trimethylacetic acid) is a branched saturated acyclic monocarboxylic acid used in pharmaceuticals, pesticides, and polymer production. Classified under HTS 2915.90.50 as 'other' saturated acyclic monocarboxylic acids.
2-Ethylhexanoic Acid
2-Ethylhexanoic acid is a branched-chain saturated acyclic monocarboxylic acid used in paint driers, PVC stabilizers, and metal soaps. It qualifies for HTS 2915.90.50 as an 'other' saturated acyclic monocarboxylic acid.
Neodecanoic Acid
Neodecanoic acid (versatic acid) is a highly branched saturated acyclic C10 monocarboxylic acid used in synthetic lubricants and polymer additives. Falls under HTS 2915.90.50 as unspecified saturated acyclic monocarboxylic acid.
Valproic Acid
Valproic acid (2-propylpentanoic acid) is a branched saturated acyclic monocarboxylic acid used as an antiepileptic pharmaceutical intermediate. Classified in HTS 2915.90.50 as other saturated acyclic monocarboxylic acids.
Cyclohexanecarboxylic Acid
Cyclohexanecarboxylic acid is technically saturated but classified here when imported as acyclic acid precursor. Used in pharmaceutical synthesis and polymer production under HTS 2915.90.50.
2-Methylbutyric Acid
2-Methylbutyric acid is a naturally occurring branched saturated acyclic monocarboxylic acid used in flavors and fragrances. HTS 2915.90.50 classification as other saturated acyclic monocarboxylic acid.