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Suberic Acid

Suberic acid (octanedioic acid), a straight-chain dicarboxylic acid used in plasticizers and corrosion inhibitors. Falls under HTS 2917.19.70.50 as an acyclic polycarboxylic acid without specific subheading. Meets Chapter 29 criteria for separate chemically defined organic compounds with two carboxylic groups.

Import Duty Rates by Country of Origin

Origin Country	MFN Rate	Ch.99 Surcharges	Total Effective Rate
🇨🇳China	4%	—	4%
🇲🇽Mexico	4%	—	4%
🇨🇦Canada	4%	—	4%
🇩🇪Germany	4%	—	4%
🇯🇵Japan	4%	—	4%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2917.19.15Higher: 41.5% vs 4%

If specifically maleic anhydride derivative

Unsaturated dicarboxylic derivatives have separate provisions

2916.39Higher: 16.5% vs 4%

If aromatic substitution on chain

Aromatic carboxylic acids classified earlier in numerical order

3105.30.00Higher: 25% vs 4%

If formulated as diammonium salt for fertilizers

Salts of organic acids used as fertilizers move to Chapter 31 per exclusion

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Import Tips & Compliance

• Submit NMR spectrum confirming linear chain structure vs branched isomers

• Ensure packaging meets UN 3265 Corrosive Solid, Basic, Organic, n.o.s. requirements

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.