ChemicalBook > CAS DataBase List > 1,5-Dimethylpyrazole

1,5-Dimethylpyrazole

Product Name
1,5-Dimethylpyrazole
CAS No.
694-31-5
Chemical Name
1,5-Dimethylpyrazole
Synonyms
AKOS B006758;AKOS PAO-1110;ART-CHEM-BB B006758;1,5-Dimethylpyrazole;1,5- two Methylpyrazole;1,5-DIMETHYL-1H-PYRAZOLE;1,5-Dimethylpyrazole >1H-Pyrazole, 1,5-diMethyl-;1,5-DIMETHYLPYRAZOLE 694-31-5
CBNumber
CB4388722
Molecular Formula
C5H8N2
Formula Weight
96.13
MOL File
694-31-5.mol
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1,5-Dimethylpyrazole Property

Melting point:
82.75°C (estimate)
Boiling point:
158°C(lit.)
Density 
0.9813
refractive index 
1.4790 to 1.4830
storage temp. 
Sealed in dry,Room Temperature
pka
2.83±0.10(Predicted)
form 
liquid
color 
Clear
λmax
217nm(EtOH)(lit.)
CAS DataBase Reference
694-31-5(CAS DataBase Reference)
NIST Chemistry Reference
1,5-Dimethylpyrazole(694-31-5)
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Safety

Hazard Codes 
Xi,T
Risk Statements 
25
Safety Statements 
45
RIDADR 
UN 1993 3/PG III
HazardClass 
IRRITANT
PackingGroup 
III
HS Code 
2933199090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TCI Chemical
Product number
D4630
Product name
1,5-Dimethylpyrazole
Purity
>98.0%(T)
Packaging
5mL
Price
$115
Updated
2024/03/01
TRC
Product number
D479733
Product name
1,5-Dimethyl-1H-pyrazole
Packaging
100mg
Price
$60
Updated
2021/12/16
Chem-Impex
Product number
43613
Product name
1,5-Dimethylpyrazole,≥98%(Assaybytitration)Hazmat
Purity
≥98%(Assaybytitration)
Packaging
5ML
Price
$64.71
Updated
2021/12/16
Oakwood
Product number
026155
Product name
1,5-Dimethyl-1H-pyrazole
Purity
99%
Packaging
25g
Price
$67
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD75461
Product name
1,5-Dimethylpyrazole
Packaging
25g
Price
$69.5
Updated
2021/12/16
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1,5-Dimethylpyrazole Chemical Properties,Usage,Production

Uses

1,5-Dimethylpyrazole is widely used in food, health products, cosmetics and other fields.

Synthesis

Researchers have reported the alkylation of 3(5)-methylpyrazole with methyl iodide and dimethylcarbonate. However, these methods employ expensive reagents and low yields, and the technology is complex. For practical purposes, a better option is to use dimethylsulfate (DMS) in an alkaline medium as the alkylation agent. Isomers of 1,3-dimethylpyrazole and 1,5-dimethylpyrazole are obtained in a 20% aqueous solution of NaOH at 70°C. The yield of the 60 : 40 mixture of the isomers1,3-dimethylpyrazole and 1,5-dimethylpyrazole is 85%[1].

References

[1] V. V. Rusak. “Extracting 1,3-dimethylpyrazole and 1,5-dimethylpyrazole from binary industrial mixtures.” Coke and Chemistry 58 7 (2015): 275–278.

1,5-Dimethylpyrazole Preparation Products And Raw materials

Raw materials

Preparation Products

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1,5-Dimethylpyrazole Suppliers

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View Lastest Price from 1,5-Dimethylpyrazole manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
1,5-Dimethylpyrazole 694-31-5
Price
US $0.10/KG
Min. Order
1KG
Purity
98.0%
Supply Ability
10
Release date
2024-08-24
PNP Biotech Co. Ltd
Product
1,5-Dimethylpyrazole 694-31-5
Price
US $0.00/kg
Min. Order
25kg
Purity
98%
Supply Ability
Inquiry
Release date
2022-10-25
Career Henan Chemical Co
Product
1,5-Dimethylpyrazole 694-31-5
Price
US $1.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
100KG
Release date
2019-05-24

694-31-5, 1,5-DimethylpyrazoleRelated Search:

Metazachlor Pyraclostrobin 5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one Zolpidem tartrate Mefenpyr-diethyl 3,4-Dimethylpyrazole phosphate ETHYL 5-METHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLATE 4-ACETYL-5-METHYL-1-PHENYLPYRAZOLE 2-[1-METHYL-5-(TRIFLUOROMETHYL)PYRAZOL-3-YL]-THIOPHENE-5-SULFONYL CHLORIDE 3,5-DIMETHYL-1-PHENYLPYRAZOLE 3,5-DIMETHYLPYRAZOLE-1-CARBOXAMIDE,3,5-DIMETHYLPYRAZOLE-1-CARBOXYAMIDE 3,5-DIMETHYL-1-PHENYL-1H-PYRAZOLE-4-CARBALDEHYDE 5-[(4-BROMO-3,5-DIMETHYL-1H-PYRAZOL-1-YL)METHYL]-1,3,4-OXADIAZOLE-2-THIOL 1,3,5-Trimethylpyrazole 2-[1-METHYL-3-(TRIFLUOROMETHYL)PYRAZOL-5-YL]-THIOPHENE-5-CARBOXALDEHYDE 1-CYANOACETYL-3,5-DIMETHYLPYRAZOLE 4-Bromo-1,3,5-trimethyl-1H-pyrazole 3,5-DIMETHYLPYRAZOLE-1-CARBINOL,1-HYDROXYMETHYL-3,5-DIMETHYLPYRAZOLE,3,5-DIMETHYLPYRAZOLE-1-METHANOL

  • AKOS PAO-1110
  • AKOS B006758
  • 1,5-DIMETHYL-1H-PYRAZOLE
  • 1,5-Dimethylpyrazole
  • ART-CHEM-BB B006758
  • 1H-Pyrazole, 1,5-diMethyl-
  • 1,5- two Methylpyrazole
  • 1,5-Dimethylpyrazole &gt
  • 1,5-DIMETHYLPYRAZOLE 694-31-5
  • 694-31-5
  • Pyrazole