Products described in additional U.S. note 3 to section VI
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure: > Other: > Aromatic or modified aromatic: > Other: > Other: > Products described in additional U.S. note 3 to section VI
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified 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.
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.
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.