Azelainic Acid
Azelainic acid (nonanedioic acid) used in cosmetics (15% acne cream) and polymer production. Although sometimes confused with specific subheadings, classified as 'other' acyclic polycarboxylic acid under 2917.19.70.50. Chemically defined dicarboxylic acid meeting Chapter 29 scope.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If >10% concentration in cosmetic preparation
Finished beauty preparations classified by function in Chapter 33
If technical grade <95% purity
Chemical mixtures below chemical definition threshold go to preparations
If misidentified as shorter chain dioic acid
Chain length determines specific vs 'other' classification
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• For cosmetic use, provide both chemical CoA and FDA cosmetic notification
• Distinguish from pharmaceutical grade requiring FDA drug master file
Related Products under HTS 2917.19.70.50
Adipic Acid
Adipic acid (hexanedioic acid) is an acyclic dicarboxylic acid used primarily in nylon 6,6 production and as a precursor for polyurethane foams. It falls under HTS 2917.19.70.50 as an acyclic polycarboxylic acid, their anhydrides, halides, peroxides, peroxyacids, and derivatives, specifically classified as 'other' acyclic polycarboxylic acids. This chemically defined organic compound meets Chapter 29 note (a) for separate organic compounds.
Pimelic Acid
Pimelic acid (heptanedioic acid) is a seven-carbon chain dicarboxylic acid used in polymer synthesis and pharmaceutical intermediates. Classified under HTS 2917.19.70.50 as an 'other' acyclic polycarboxylic acid per Chapter 29 requirements for chemically defined organic compounds. Its two carboxylic acid groups on an acyclic chain determine the heading.
Glutaric Acid
Glutaric acid (pentanedioic acid), a C5 dicarboxylic acid used in pharmaceuticals, polymers, and as a cross-linking agent. Classified under HTS 2917.19.70.50 as acyclic polycarboxylic acid 'other' category for chemically defined compounds. Straight chain with terminal carboxylic groups.
2-Ethylsuccinic Acid
2-Ethylsuccinic acid, a branched chain acyclic dicarboxylic acid used as a chemical intermediate. Falls under HTS 2917.19.70.50 as 'other' acyclic polycarboxylic acid derivative. Meets Chapter 29 definition despite branching on carbon chain.
Methylsuccinic Acid
Methylsuccinic acid (2-methylbutanedioic acid), an important intermediate in fine chemical synthesis. Classified as acyclic polycarboxylic acid under HTS 2917.19.70.50. Chemically defined compound with defined substitution pattern.
Dodecanedioic Acid
Dodecanedioic acid (C12 straight chain), used in high-performance polyesters and nylon 12,12. HTS 2917.19.70.50 classification as long-chain acyclic polycarboxylic acid. Chemically pure dicarboxylic acid meeting Chapter 29 criteria.