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3-Ketobutyric Acid

3-Ketobutyric acid, a beta-keto acid, contains ketone and carboxylic functions per HTS 2918.30.90.00 classification. Used in organic synthesis despite instability.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+133.8%137.5%
🇲🇽Mexico3.7%+106.3%110%
🇨🇦Canada3.7%+106.3%110%
🇩🇪GermanyFree+21.3%21.3%
🇯🇵JapanFree+23.8%23.8%

Alternative Classifications

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

2918.11Lower: 15.9% vs 137.5%

If lactic acid tautomer form

Hydroxy acids classify separately from keto forms.

3824.99Lower: 17.5% vs 137.5%

If impure or stabilized mixtures

Not chemically defined per chapter notes.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Import as stabilized sodium salt to prevent decarboxylation

• Full elemental analysis required for customs verification

• Avoid 2918.90 if hydroxy tautomer predominates

Related Products under HTS 2918.30.90.00

4-Hydroxyphenylpyruvic Acid

4-Hydroxyphenylpyruvic acid is a keto acid featuring both a carboxylic acid group and a ketone functionality, classifying it under HTS 2918.30.90.00 as a carboxylic acid with ketone function but without other oxygen functions beyond those specified. It is used in biochemical research and as an intermediate in pharmaceutical synthesis.

Benzoylformic Acid

Benzoylformic acid (phenylglyoxylic acid) is an aromatic alpha-keto acid with both carboxylic and ketone groups, falling under HTS 2918.30.90.00 for carboxylic acids with ketone function. It serves as a key intermediate in organic synthesis and pharmaceutical production.

Pyruvic Acid

Pyruvic acid (2-oxopropanoic acid) is the simplest alpha-keto acid with both carboxylic and ketone functionalities, fitting HTS 2918.30.90.00 criteria. It is essential in organic synthesis, cosmetics, and as a biochemical reagent.

Oxaloacetic Acid

Oxaloacetic acid features a ketone group beta to the carboxylic acid, meeting HTS 2918.30.90.00 for keto-functional carboxylic acids. It plays a critical role in the citric acid cycle and biochemical studies.

Levulinic Acid

Levulinic acid (4-oxopentanoic acid) contains a ketone group gamma to the carboxylic acid, qualifying for HTS 2918.30.90.00. It is a platform chemical derived from biomass for polymer and fuel applications.

2-Ketobutyric Acid

2-Ketobutyric acid is an alpha-keto acid with four carbons, fitting HTS 2918.30.90.00 as a carboxylic acid with ketone function. Applied in amino acid synthesis and metabolic pathway studies.