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H34396 4-Trifluoromethyl-1H-pyrazole, 97%

CAS Number

Stock No. Size Price ($) Quantity Availability
H34396-MD 250mg 168.00
H34396-03 1g 552.00
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4-Trifluoromethyl-1H-pyrazole, 97%


Chemical Properties

Formula Weight
Melting point
Storage & Sensitivity
Ambient temperatures.


It is used as pharmaceutical intermediates. The palladium-catalyzed cross-coupling reactions of 5-tributylstannyl-4-fluoro-1H-pyrazole with aryl iodides provided high yields of the corresponding 5-aryl-4-fluoro-1H-pyrazoles.


Incompatible with strong oxidizing agents. Store at room temperature.

Literature References

Takeshi Hanamotoa.; Takao Suetake.; Yukinori Koga.; Toshio Kawanami.; Hiroshi Furuno.; Junji Inanag. Synthesis and reactions of 5-tributylstannyl-4-fluoro-1H-pyrazole.Tetrahedron. 2007, 63 (23), 5062-5070.

Rukkiat Jitchati.; Andrei S. Batsanov.; Martin R. Bryce. N-Arylation of nitrogen heterocycles with 2,4-difluoroiodobenzene. Tetrahedron. 2009, 65 (4), 855-861.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • H32329

    2-tert-Butyl-4-methylthiazole-5-methanol, 97%
  • H32834

    3-(Trifluoromethyl)phenylhydrazine hydrochloride, 98%
  • L16484

    1H,1H,8H,8H-Dodecafluoro-1,8-octanediol, 97%
  • H52752

    3-Fluoro-2-methylbenzeneboronic acid, 98%
  • J65326

    3'-Amino-2',3'-dideoxyguanosine, 99%

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