Ethyl 2-keto-4-phenylbutanoate
An aromatic β-keto ester with a phenyl-substituted chain, explicitly listed under HTS 2918.30.1500 as a carboxylic acid with ketone function but no other oxygen groups. Used primarily as a synthetic intermediate in organic chemistry and drug development for its reactivity in C-C bond formations.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for structurally similar but not exactly named β-keto phenylbutanoate analogs
Only the two precisely named compounds get this subheading; other aromatic ketone-function carboxylic esters go to the 'other' provision.
If lacking the carboxylic ester group, being just the ketone
Cyclic or acyclic alcohols/ketones without acid function classify under 2906, as this heading excludes compounds with carboxylic groups.
If the product is a carboxamide derivative instead of ester
Carboxamide-function compounds shift to Chapter 29 heading 2924, separate from oxygen-function carboxylic derivatives.
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Import Tips & Compliance
• Submit CoA with HPLC purity data and batch-specific identifiers to confirm identity against the exact named compound
• Declare as 'research chemical' if for lab use, but provide end-use statement to prevent dual-use scrutiny under export controls
Related Products under HTS 2918.30.15.00
2-Chloro-4,5-difluoro-β-oxobenzenepropanoic acid, ethyl ester
This is a specific aromatic carboxylic acid ester featuring a ketone function and halogen substitutions, precisely matching the chemical structure defined in HTS 2918.30.1500. It serves as a key intermediate in pharmaceutical synthesis, particularly for fluorinated drug candidates, and falls under this heading due to its β-keto ester functionality without other oxygen groups.
2-Chloro-4,5-difluoro-β-oxobenzenepropanoic acid, ethyl ester (technical grade)
Technical grade of the specifically named halogenated aromatic β-keto ester in HTS 2918.30.1500, used in agrochemical synthesis. Qualifies due to precise matching of chemical definition and absence of other oxygen functions per chapter provisions.
Ethyl 2-keto-4-phenylbutanoate (98% purity, pharma grade)
High-purity version of the named compound under HTS 2918.30.1500, supplied as a pale yellow oil for pharmaceutical intermediate applications. Its aromatic ketone-acid ester structure fits chapter notes for classification in the last occurring heading for such oxygen functions.
Mixture of 2-Chloro-4,5-difluoro-β-oxobenzenepropanoic acid ethyl ester isomers
Isomeric mixture of the named compound per chapter note (b), classified under HTS 2918.30.1500 as it matches the core structure with ketone and ester functions on aromatic base. Used in stereoselective synthesis for chiral pharmaceuticals.