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376584-63-3 - 1H-Pyrazole-3-boronic acid hydrate, 95% - H27286 - Alfa Aesar

H27286 1H-Pyrazole-3-boronic acid hydrate, 95%

CAS Number

Size Price ($) Quantity Availability
1g 135.00
5g 1172.00
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1H-Pyrazole-3-boronic acid hydrate, 95%


Chemical Properties

Formula Weight
Melting point
Soluble in water.


Significantly used as synthetic intermediates. They are widely used in the production of optics.


Refrigerated (2-8°C). Moisture sensitive. Store under inert gas. Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from strong oxidizing agents.

Literature References

Korich,; A. L. Dalton Trans. Owing to the presence of covalent chemistry in the boroxine ring, boronic anhydrides find their use in novel molecular architectures and functional materials. Boroxine chemistry and applications. 2010, 391423-1431.

Olivier Veniera,; Cécile Pascala,; Alain Brauna,; Claudie Namanea,; Patrick Mougenota,; Olivier Crespina,; François Pacqueta,; Cécile Mougenota,; Catherine Monseaua,; Bénédicte Onofria,; Rommel Dadji-Faïhuna,; Céline Legera,; Majdi Ben-Hassinea,; Thao Van-Phama,; Jean-Luc Ragota,; Christophe Philippoa,; Stefan Güssregenb,; Christian Engelb,; Géraldine Farjota,; Lionel Noaha,; Karima Maniania,; Eric Nicolaï. Pyrrolidine-pyrazole ureas as potent and selective inhibitors of 11β-hydroxysteroid-dehydrogenase type 1. Bioorganic & Medicinal Chemistry Letters. 2011, 21(8),2244-2251.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

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

Precautionary Statements: P261-P280a-P305+P351+P338-P304+P340-P312a-P321-P332+P313-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/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. Specific treatment (see label). If skin irritation occurs: Get medical advice/attention. 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.

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