Pyridylglyoxylic Acid
Pyridylglyoxylic acid has pyridine ring with keto-carboxylic side chain, but acyclic chain function dominates for HTS 2918.30.90.00.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pyridine considered principal
Heterocyclic compounds take precedence.
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Import Tips & Compliance
• Distinguish from true heterocyclics (2933)
• NMR confirms acyclic chain dominance
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.