- 1,5-Dimethylpyrazole
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- $0.10 / 1KG
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2024-08-24
- CAS:694-31-5
- Min. Order: 1KG
- Purity: 98.0%
- Supply Ability: 10
- 1,5-Dimethylpyrazole
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- $0.00 / 25kg
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2024-03-28
- CAS:694-31-5
- Min. Order: 25kg
- Purity: 98%
- Supply Ability: Inquiry
- 1,5-Dimethylpyrazole
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- $1.00 / 1KG
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2019-07-06
- CAS:694-31-5
- Min. Order: 1KG
- Purity: 98%
- Supply Ability: 100KG
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| | 1,5-Dimethylpyrazole Basic information |
| Product Name: | 1,5-Dimethylpyrazole | | Synonyms: | 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 > | | CAS: | 694-31-5 | | MF: | C5H8N2 | | MW: | 96.13 | | EINECS: | 614-969-8 | | Product Categories: | Pyrazole | | Mol File: | 694-31-5.mol |  |
| | 1,5-Dimethylpyrazole Chemical Properties |
| 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) |
| Hazard Codes | Xi,T | | Risk Statements | 25 | | Safety Statements | 45 | | RIDADR | UN 1993 3/PG III | | HazardClass | IRRITANT | | PackingGroup | III | | HS Code | 2933199090 |
| | 1,5-Dimethylpyrazole Usage And Synthesis |
| 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 |
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