4-Nitro-1-phenylpyrazole
4-Nitro-1-phenylpyrazole contains an unfused aromatic pyrazole ring with nitro substitution, fitting HTS 2933.19.43.00 criteria. The nitro group is explicitly included in pyrazole derivatives per Chapter 29 notes on nitrated compounds. Used as intermediate for agrochemicals and pharmaceuticals.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If nitro group considered dominant function
Nitrated aromatic compounds sometimes argued under 2909, but unfused pyrazole specificity prevails per numerical order rule
If hydrogenated pyrazole ring
Non-aromatic pyrazole derivatives classified later in 2933.99 per subheading structure
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Import Tips & Compliance
• Classify as hazardous material (nitro compound) with proper UN number; include MSDS with all shipments; verify no sulfonation that would shift to earlier headings
Related Products under HTS 2933.19.43.00
3-Amino-1-phenylpyrazole
3-Amino-1-phenylpyrazole is an aromatic heterocyclic compound containing an unfused pyrazole ring with nitrogen hetero-atoms and an amino substituent. It falls under HTS 2933.19.43.00 as an aromatic pyrazole derivative used primarily as a pharmaceutical intermediate. This chemically defined organic compound meets Chapter 29 note (a) for separate organic compounds.
1-Phenyl-3-methyl-5-pyrazolone
1-Phenyl-3-methyl-5-pyrazolone is a modified aromatic pyrazole derivative used in dye and pharmaceutical synthesis. Classified under HTS 2933.19.43.00 for unfused pyrazole compounds that are aromatic or modified aromatic. The ketone functionality does not change its primary pyrazole classification.
3-Carboxy-1-methylpyrazole
3-Carboxy-1-methylpyrazole features an unfused pyrazole ring with carboxylic acid functionality, classified as aromatic pyrazole 'other' under HTS 2933.19.43.00. The acid function doesn't override pyrazole classification per Chapter 29 ester/acid rules. Common intermediate for herbicides.
1-Benzyl-3,5-dimethylpyrazole
1-Benzyl-3,5-dimethylpyrazole is a substituted aromatic pyrazole used in pharmaceutical research and synthesis. Falls under HTS 2933.19.43.00 as 'other' unfused pyrazole ring compounds that are aromatic or modified aromatic. Meets Chapter 29 criteria for chemically defined heterocycles.
4-Acetyl-1-phenylpyrazole
4-Acetyl-1-phenylpyrazole contains an unfused pyrazole ring with aromatic ketone substitution, properly classified in HTS 2933.19.43.00. The pyrazole moiety determines classification over acetyl group per chapter note numerical order rules. Used in advanced materials synthesis.
3-Trifluoromethyl-1-phenylpyrazole
3-Trifluoromethyl-1-phenylpyrazole is an aromatic pyrazole with fluorinated substituent, classified under HTS 2933.19.43.00 for unfused pyrazole 'other' compounds. Halogenated derivatives included per Chapter 29 notes. Key intermediate for modern pesticides.