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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as azelaic acid specifically
Azelaic acid has its own specific subheading within acyclic polycarboxylic acids
If containing impurities >5% or sold as technical grade
Mixtures not meeting 'chemically defined' criteria per Chapter 29 note (a) fall under chemical preparations
If saturated monocarboxylic rather than dicarboxylic
Single carboxylic acid group changes classification to acyclic saturated monocarboxylic acids
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Import Tips & Compliance
• Provide Certificate of Analysis confirming purity >99% as it's a chemically defined compound per Chapter 29 note (a)
• Ensure proper labeling with CAS number 124-04-9 and UN number for adipic acid to avoid transportation delays
• Verify not mixed with impurities exceeding 1% to prevent reclassification under mixtures
Related Products under HTS 2917.19.70.50
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.
3,3-Dimethylglutaric Acid
3,3-Dimethylglutaric acid, a geminally substituted dicarboxylic acid for pharmaceutical synthesis. Classified under HTS 2917.19.70.50 as acyclic polycarboxylic acid 'other'. Specific substitution pattern but remains acyclic per definition.