3-Trifluoromethyl-1H-pyrazole
3-Trifluoromethyl-1H-pyrazole features trifluoromethyl substitution on unfused pyrazole ring, HTS 2933.19.90.00 classification. Key intermediate in fluorinated pharmaceutical and crop protection agent synthesis.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If halogenated acyclic portion dominates
Halogenated hydrocarbons classified in 2903, but heterocyclic ring prevails.
If formulated crop protection intermediate
Herbicide/pesticide intermediates containing heterocycles classified under Chapter 38.
If classified as oxygen heterocyclic analog
Oxygen heterocycles (later numerical order) would take precedence if present.
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Import Tips & Compliance
• Fluorinated compounds require enhanced ventilation specifications in SDS
• High volatility - specify vapor pressure and recommend pressure-relief packaging
• Verify CF3 group integrity via 19F-NMR for customs chemical verification
Related Products under HTS 2933.19.90.00
3-Amino-1-phenylpyrazole
3-Amino-1-phenylpyrazole is a heterocyclic compound containing an unfused pyrazole ring with an amino group at position 3 and phenyl substituent at nitrogen 1. It falls under HTS 2933.19.90.00 as a pyrazole derivative not specifically enumerated elsewhere in the subheading. Used primarily as an intermediate in pharmaceutical and agrochemical synthesis.
4-Nitro-1H-pyrazole
4-Nitro-1H-pyrazole contains an unfused pyrazole ring with nitro group substitution at position 4, qualifying as a nitrogen-heterocyclic compound under heading 2933. Classified in 2933.19.90.00 as 'other' pyrazole derivative. Used in synthesis of explosives, pharmaceuticals, and energetic materials.
3,5-Dimethylpyrazole
3,5-Dimethylpyrazole features methyl groups at positions 3 and 5 of the unfused pyrazole ring, fitting HTS 2933.19.90.00 as an 'other' pyrazole compound. Primarily used as a nitrification inhibitor in agricultural fertilizers and as a ligand in coordination chemistry.
4-Aminoantipyrine
4-Aminoantipyrine (4-amino-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one) contains unfused pyrazolone ring structure, classified HTS 2933.19.90.00 as other pyrazole compound. Widely used as analytical reagent for phenol detection and cholesterol determination in clinical labs.
Ceftriaxone Sodium Impurity A (Pyrazole Intermediate)
Ceftriaxone Sodium Impurity A is a pyrazole-containing synthetic intermediate used in cephalosporin antibiotic production, classified under HTS 2933.19.90.00 as other unfused pyrazole compound. Meets Chapter 29 definition for separate chemically defined organic compounds.
Pyrazolone Red Dye Intermediate
Pyrazolone Red Dye Intermediate is a substituted pyrazole compound used in azo dye coupling reactions for textile and ink applications. Classified HTS 2933.19.90.00 as unfused pyrazole 'other' per Chapter Note excluding only retail coloring matter.