1-(2,6-Dichlorophenyl)-1H-pyrazole-4-carbaldehyde
An aromatic pyrazole compound with a dichlorophenyl substituent and aldehyde functionality, making it a key intermediate for agrochemical synthesis. Classified under HTS 2933.19.37.00 due to its unfused pyrazole ring structure that qualifies under additional U.S. note 3 to section VI for specific aromatic pyrazoles. The heterocyclic nitrogen atoms define its primary classification.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If considered an oxygen heterocyclic due to prominent aldehyde group
Aldehydes with heterocyclic features sometimes classify under Chapter 29 aldehyde headings if not purely nitrogen-based.
If for bulk aromatic aldehydes without pyrazole specification
Cyclic aldehydes may fall under general aromatic aldehyde provisions if heterocyclic nature secondary.
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Import Tips & Compliance
• Check EPA requirements if used in pesticide synthesis; may require pre-manufacture notice (PMN)
• Label containers with GHS hazard pictograms for aldehyde and chlorinated aromatic compounds
• Confirm structure via NMR or HPLC documentation to validate pyrazole ring classification
Related Products under HTS 2933.19.37.00
3-Methyl-1-phenyl-1H-pyrazole-5-carboxylic acid
This is an aromatic pyrazole derivative featuring a pyrazole ring substituted with a phenyl group and a carboxylic acid function at the 5-position. It falls under HTS 2933.19.37.00 as a chemically defined heterocyclic compound containing an unfused pyrazole ring that is aromatic or modified aromatic, specifically listed in additional U.S. note 3 to section VI. Such compounds are typically used as intermediates in pharmaceutical synthesis.
Ethyl 3-methyl-1H-pyrazole-5-carboxylate
This ester of a pyrazole carboxylic acid features an unfused aromatic pyrazole ring, classified specifically under HTS 2933.19.37.00 per additional U.S. note 3 to section VI. The ester follows the acid's classification per chapter notes, used primarily as a pharmaceutical intermediate.
4-Nitro-1-phenyl-1H-pyrazole
A nitro-substituted aromatic pyrazole with unfused ring structure, falling under HTS 2933.19.37.00 as specified in additional U.S. note 3 to section VI. Nitro groups on pyrazoles are classified with the parent heterocycle per chapter notes, used in dye and pharmaceutical applications.
1-Benzyl-3,5-dimethyl-1H-pyrazole
An N-benzyl substituted dimethylpyrazole that is aromatic and listed under additional U.S. note 3 to section VI, hence HTS 2933.19.37.00. This ligand precursor for coordination chemistry maintains pyrazole as principal characteristic.