694-48-4

Basic information

• Product Name: 1,3-Dimethylpyrazole
• Synonyms: 1,3-dimethylpyrazole;1,3-dimethyl-1H-pyrazole(SALTDATA: FREE);α-(2-Chloroethyl)-2-thiophenemethanol;2,5-DiMethylpyrazole;NSC 190569;1H-Pyrazole,1,3-diMethyl-;1,3- two Methylpyrazole;1,3-DiMethylpyrazole, 98.0%,(GC)
• CAS NO: 694-48-4
• Molecular Formula: C₅H₈N₂
• Molecular Weight: 96.13042
• EINECS: 1312995-182-4
• Product Categories: Pyrazole;Heterocycles;Miscellaneous Reagents
• Mol File: 694-48-4.mol
• Article Data: 5

Chemical Properties

• Melting Point: 82.75°C (estimate)
• Boiling Point: 138°C(lit.)
• Flash Point: 38.6 °C
• Appearance: /
• Density: 0.9561
• Vapor Pressure: 7.74mmHg at 25°C
• Refractive Index: 1.4700 to 1.4740
• Storage Temp.: Room temperature.
• Solubility: Chloroform (Sparingly)
• PKA: 2.72±0.10(Predicted)
• CAS DataBase Reference: 1,3-Dimethylpyrazole(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-Dimethylpyrazole(694-48-4)
• EPA Substance Registry System: 1,3-Dimethylpyrazole(694-48-4)

Safety Data

• Hazard Codes: Xi
• RIDADR: UN 1993 3/PG III
• HazardClass: IRRITANT
• PackingGroup: III
• Hazardous Substances Data: 694-48-4(Hazardous Substances Data)

Usage

Uses

1,3-Dimethylpyrazole (cas# 694-48-4) is a compound useful in organic synthesis.

InChI:InChI=1/C5H8N2/c1-5-3-4-7(2)6-5/h3-4H,1-2H3

Upstream product

• 625-34-3 3-oxobutyraldehyde 
• 60-34-4 methylhydrazine 
• 57-14-7 N,N-Dimethylhydrazine 
• 7119-27-9 4-chloro-3-buten-2-one 
• 67-64-1 acetone 
• 27006-76-4 5-chloro-4-formyl-1,3-dimethylpyrazole 

Downstream Products

• 15878-44-1 1,3-Dimethyl-4-chlor-pyrazol 
• 5775-82-6 4-bromo-1,3-dimethyl-1H-pyrazole 
• 5744-56-9 1,3-dimethylpyrazol-5-carboxylic acid 
• 3920-38-5 1,3-dimethyl-4-nitro-1H-pyrazole 
• 5744-71-8 4,5-dibromo-1,3-dimethylpyrazole 
• 85779-98-2 5-iodo-1,3-dimethylpyrazole 
• 75092-39-6 1-Methyl-1H-pyrazole-3,5-dicarboxylic acid 
• 52773-23-6 1-(1,3-dimethyl-1H-pyrazol-4-yl)ethan-1-one 
• 95234-51-8 1,4-bis<1,2-dimethyl-3(5)-pyrazoliumvinyl>benzene diiodide 
• 95234-50-7 1,2-dimethyl-3⁽⁵⁾-(4-nitrostyryl)pyrazolium iodide 
• 95234-49-4 1,2-dimethyl-3⁽⁵⁾-(4-dimethylaminostyryl)pyrazolium iodide 
• 95234-48-3 1,2-dimethyl-3⁽⁵⁾-styrylpyrazolium iodide 

Relevant articles and documents

Chromatographic component of identification of the transformation products of 1,1-dimethylhydrazine in the presence of sulfur

The gas-chromatographic retention indices of the products of 1,1-dimethylhydrazine transformations in the presence of sulfur allows one to confirm and, in ceratin cases, make more exact the results of their gas chromatography-mass spectrometry identificat

New synthesis and properties of 3-alkyl-, 3-chloroalkyl-, 3-perfluoroalkyl-, and 3-aryl-1-methyl-(5-halo)pyrazoles from chloro(bromo) vinyl ketones and N,N-dimethylhydrazine

A new regioselective heterocyclization was revealed in the reaction of 2-chloro- and 2,2-dichloro-(bromo)vinyl ketones with N,N-dimethylhydrazine to afford 3-substituted 1-methyl(5-halo)pyrazoles. The reaction is accompanied by elimination of methyl halide and formation of up to 90% of N,N,N-trimethylhydrazinium halide as the second product.

Systemic fungicides. The synthesis of certain pyrazole analogues of carboxin

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