Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate
- CAS No.
- 51986-17-5
- Chemical Name:
- Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate
- Synonyms
- Ethyl,1-methylpyrazole-4-carboxylate;Ethyl 5-Hydroxy-1-Methylpyrazole-3-carboxylate;Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate;5-Hydroxy-1-methyl-1H-pyrazole-3-carboxylicacidethylester;1H-Pyrazole-3-carboxylic acid, 5-hydroxy-1-Methyl-, ethyl ester
- CBNumber:
- CB41504006
- Molecular Formula:
- C7H10N2O3
- Molecular Weight:
- 170.17
- MDL Number:
- MFCD09839084
- MOL File:
- 51986-17-5.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Ethyl5-hydroxy-1-methyl-1h-pyrazole-3-carboxylate | E945503 | 100mg | $75 |
| 5-Hydroxy-1-methyl-1H-pyrazole-3-carboxylic acid ethyl ester | 4H58-1-YB | 500mg | $245 |
| 5-Hydroxy-1-methyl-1H-pyrazole-3-carboxylic acid ethyl ester | 4H58-1-YB | 1g | $338 |
| ETHYL-5-HYDROXY-1-METHYL-1H-PYRAZOLE-3-CARBOXYLATE 95.00% | CHM0384547 | 5MG | $496.36 |
| Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate 98% | 069082 | 1g | $530 |
| More product size | |||
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H319-H335-H315-H302+H312+H332 |
| Precautionary statements | P280-P301+P312-P362+P364 |
| HS Code | 2933199090 |
Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate price More Price(18)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TRC | E945503 | Ethyl5-hydroxy-1-methyl-1h-pyrazole-3-carboxylate | 51986-17-5 | 100mg | $75 | 2021-12-16 | Buy |
| SynQuest Laboratories | 4H58-1-YB | 5-Hydroxy-1-methyl-1H-pyrazole-3-carboxylic acid ethyl ester | 51986-17-5 | 500mg | $245 | 2021-12-16 | Buy |
| SynQuest Laboratories | 4H58-1-YB | 5-Hydroxy-1-methyl-1H-pyrazole-3-carboxylic acid ethyl ester | 51986-17-5 | 1g | $338 | 2021-12-16 | Buy |
| American Custom Chemicals Corporation | CHM0384547 | ETHYL-5-HYDROXY-1-METHYL-1H-PYRAZOLE-3-CARBOXYLATE 95.00% | 51986-17-5 | 5MG | $496.36 | 2021-12-16 | Buy |
| Matrix Scientific | 069082 | Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate 98% | 51986-17-5 | 1g | $530 | 2021-12-16 | Buy |
Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate Chemical Properties,Uses,Production
Synthesis
60-34-4
40876-98-0
51986-17-5
The general procedure for the synthesis of ethyl 1-methyl-5-hydroxypyrazole-3-carboxylate from methylhydrazine and the sodium salt of diethyl oxaloacetate is as follows (Ref. Example 3): 3-ethoxycarbonyl-5-hydroxy-1-methylpyrazole synthesis. 50.0 g (0.24 mol) of diethyl oxaloacetate sodium salt was suspended in 500 ml of ethanol. To the suspension 25 ml of acetic acid was added. 15g (0.33 mol) of 97% methylhydrazine was slowly added dropwise over 0.5 h at room temperature and under stirring conditions. After the dropwise addition was completed, the reaction mixture was continued to be stirred at room temperature for 2 h. Subsequently, the temperature was raised to reflux temperature and stirring was continued for 5 h. After completion of the reaction, the mixture was cooled and ethanol was removed by distillation under reduced pressure. The residue was extracted by adding 200 ml of ethyl acetate and 100 ml of water to the residue. After separation of the organic phase, the extraction of the aqueous layer was repeated once more with 50 ml of ethyl acetate. The two combined ethyl acetate extracts were washed sequentially with 50 ml of water and 50 ml of saturated aqueous sodium chloride. The washed ethyl acetate layer was dried with anhydrous sodium sulfate and the solvent was subsequently removed by distillation under reduced pressure. Finally, 100 ml of water was added to the resulting crystals.
References
[1] Patent: EP1990336, 2008, A1. Location in patent: Page/Page column 12
[2] Patent: WO2008/47071, 2008, A1. Location in patent: Page/Page column 20
[3] Patent: EP1988081, 2008, A1. Location in patent: Page/Page column 40
Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hubei Lidu New Material Technology Co., Ltd | +86-19307248857 +86-19307248857 | 19307248857@163.com | China | 865 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718; +8613336195806 | sales@capot.com | China | 29735 | 60 |
| Accela ChemBio Inc. | +1-858-6993322 | info@accelachem.com | United States | 21193 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49975 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29798 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569266 +86-17392581500 | 1015@dideu.com | China | 3987 | 58 |
| Guangzhou Yuheng Pharmaceutical Technology Co., Ltd | +8613580539051 | joe@yuhengpharm.com | CHINA | 21142 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| Blocksynth Pharmaceutical Technology Co.,Ltd | 0086-19817745290; +8619817745290 | bd@blocksynth.com | China | 5661 | 58 |
View Lastest Price from Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-12-04 | Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate
51986-17-5
|
US $0.00-0.00 / G | 1G | 99% | 20TONS | Hubei Lidu New Material Technology Co., Ltd | |
 |
2020-01-05 | Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate
51986-17-5
|
US $1.00 / KG | 1KG | 99% | 100KG | Career Henan Chemical Co |
-
- Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate
51986-17-5
- US $0.00-0.00 / G
- 99%
- Hubei Lidu New Material Technology Co., Ltd
-
- Ethyl 5-hydroxy-1-methyl-1H-pyrazole-3-carboxylate
51986-17-5
- US $1.00 / KG
- 99%
- Career Henan Chemical Co
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