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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If purity below specification or contains impurities exceeding 2%
Products not precisely matching the named compounds fall into the residual 'other' subcategory within the same aromatic ketone-function carboxylic acid esters heading.
If containing heterocyclic rings in the structure
Heterocyclic compounds with nitrogen or other heteroatoms are classified in Chapter 29 heading 2933 rather than acyclic/keto carboxylic acid esters.
If sold as a salt form rather than free ester
Organic salts of carboxylic acids are directed to heading 2942 per chapter note on salts classification.
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Import Tips & Compliance
• Provide detailed chemical analysis (NMR, MS) confirming structure matches the exact specification to avoid reclassification
• Include Safety Data Sheets (SDS) and purity certificates (>98%) as documentation for customs valuation and hazard classification
• Avoid common pitfalls like improper UN packaging for corrosive liquids; ensure REACH/ TSCA pre-registration for US entry
Related Products under HTS 2918.30.15.00
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
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.
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.