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67-51-6 - 3,5-Dimethyl-1H-pyrazole, 99% - A10157 - Alfa Aesar

A10157 3,5-Dimethyl-1H-pyrazole, 99%

Numéro CAS

Dimensions Prix ($) Quantité Disponibilité
50g 29,60
250g 119,00
1000g 264,00
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3,5-Dimethyl-1H-pyrazole, 99%


Propriétés chimiques

Poids formulaire
Point de fusion
Point d'ébullition
Soluble in water, methanol 0.1 g/mL.


3,5-Dimethyl-1H-pyrazole is combined with Chromium(VI)­ oxide, is a valuable reagent for oxidation of primary and secondary alcohols to carbonyl compounds. It reacts with malonic esters gives a family of cross-conjugated monomeric betaines. It is a common reagent for the preparation of pyrazolato ligated complexes. It is also used to prepare N-1-substituted derivatives having antibacterial activity.


Store away from oxidizing agents. Store in a cool, dry condition in well sealed containers.

Références bibliographiques

Hasnae Bendaha; Lisa Yu; Rachid Touzani; Rachid Souane; Guri Giaever; Corey Nislow; Charles Boone; Sghir El Kadiri; Grant W. Brown; Mohammed Bellaoui. New azole antifungal agents with novel modes of action: Synthesis and biological studies of new tridentate ligands based on pyrazole and triazole. European Journal of Medicinal Chemistry. 2011, 46 (9), 4117-4124.

F Castro González; A Martínez Garza. Comparative study of analgesics. Practica odontologica. 1986, 7 (2), 30-34.

The combination with Chromium(VI)­ oxide, 12522 is a valuable reagent for oxidation of primary and secondary alcohols to carbonyl compounds in very high yields: Tetrahedron Lett., 4499 (1973). With Pyridinium chlorochromate, A11752, allylic alcohols are oxidized selectively in the presence of secondary alcohols: J. Org. Chem., 48, 4766 (1983).

Reaction of pyrazoles with malonic esters gives a family of cross-conjugated monomeric betaines: Synthesis, 629 (1989):

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H302-H315-H319-H335

Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Mentions de prudence: P260u-P201-P280a-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310a-P405-P501a

Obtain special instructions before use. Wear protective gloves and eye/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Code tarifaire harmonisé


Consulté récemment

Produits chimiques

Sciences de la vie

Métaux et matériaux


Analytique et matériel de laboratoire