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2075-45-8 - 4-Bromo-1H-pyrazole, 98+% - H64673 - Alfa Aesar

H64673 4-Bromo-1H-pyrazole, 98+%

Numéro CAS

Dimensions Prix ($) Quantité Disponibilité
25g 31,80
500g 269,00
1kg 449,00
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4-Bromo-1H-pyrazole, 98+%


Propriétés chimiques

Poids formulaire
Point de fusion
93-96° lit.
Point d'ébullition
250-260° lit.
Slightly soluble in water.


4-Bromopyrazole may be used in the preparation of 4-bromo-1-(2-chloroethyl)-1H-pyrazole. It may be used as starting material in the synthesis of 1,4?-bipyrazoles. Also used in the synthesis of various pharmaceutical and biologically active compounds, including inhibitors. It is also shown to be one of the 4-substituted pyrazoles, being able to act as inhibitor of liver alcohol dehydrogenase.


Store in cool, dry place in tightly closed container. With adequate ventilation. Store away from oxidizing agent.

Références bibliographiques

Guzei IA; and Winter CH. Structural Diversity in the Reaction of Mono- and Disubstituted Pyrazoles with Titanium Tetrachloride. Importance of Hydrogen Bonding and Trends in cis/trans Geometry of Binary Adducts with Unidentate Ligands. Inorg. Chem. 1997 36(20), 4415-4420.

E Alejandre-Durán; M Ruiz-Rubio; R M Claramunt; C López; C Pueyo. Mutagenicity study on pyrazole, seven pyrazole derivatives, and two nitroimidazoles with the L-arabinose resistance test of Salmonella typhimurium. Environmental Mutagenesis.1986 8(4), 611-619.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H315-H319-H335

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

Mentions de prudence: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Code tarifaire harmonisé


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    Sulfur in Light Mineral Oil standard solution, Specpure®, 15µg/g (0.0015%)
  • 12619

    Ammonium hexabromoplatinate(IV), 99.9% (metals basis), Pt 28%
  • L00534

    2-Butene-1,4-bis(triphenylphosphonium chloride), 98+%

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