5-ethyl-2-methyl-3-pyrazolecarboxylic acid ethyl ester
3-ETHYL-1-METHYL-1H-PYRAZOLE-5-CARBOXYLIC ACID ETHYL ESTER
CAS: 128537-26-8
Molecular Formula: C9H14N2O2
5-ethyl-2-methyl-3-pyrazolecarboxylic acid ethyl ester - Names and Identifiers
5-ethyl-2-methyl-3-pyrazolecarboxylic acid ethyl ester - Physico-chemical Properties
| Molecular Formula | C9H14N2O2 |
| Molar Mass | 182.22 |
| Density | 1.10±0.1 g/cm3(Predicted) |
| Boling Point | 286.3±28.0 °C(Predicted) |
| Storage Condition | Room Temprature |
| Physical and Chemical Properties | The chemical product is oil. |
| Use | Use 3-ethyl-1-methylpyrazole-5-carboxylic acid ethyl ester is an intermediate of the acaricide pyaramide. |
5-ethyl-2-methyl-3-pyrazolecarboxylic acid ethyl ester - Upstream Downstream Industry
| Raw Materials | Methylhydrazine ethyl 3-ethylpyrazolyl-5-carboxylate |
5-ethyl-2-methyl-3-pyrazolecarboxylic acid ethyl ester - Nature
| acidity coefficient (pKa) | 0.98±0.10(Predicted) |
Last Update：2024-04-10 22:29:15
5-ethyl-2-methyl-3-pyrazolecarboxylic acid ethyl ester - Production method
the preparation method is that ethyl propionyl pyruvate is slowly dropped into methyl hydrazine ethanol solution for 1.5h, the dropping temperature is less than 10 ℃, and then let stand for 30min to obtain the product.
Ethyl 3-ethylpyrazol-5-carboxylate can also be synthesized by the hydrazine hydrate method or the dihydrazine sulfate method, and then reacted with dimethyl sulfate to obtain 3-ethyl-1-methylpyrazol-5-carboxylate ethyl acid.
Last Update：2024-04-10 22:29:15
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CAS: 128537-26-8
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View History
5-ethyl-2-methyl-3-pyrazolecarboxylic acid ethyl ester
Trimethylolpropanepoly(oxypropylene)triamine
7H-Pyrrolo[2,3-d]pyrimidin-4-amine, 5-methyl- (9CI)
PHTHALOCYANINE ZINC
Benzenemethanol, 5-bromo-3-fluoro-2-methoxy-
(TB-5-23)-Hydro(methyldiphenylphosphine)tris[2,4,6-tris(1-methylethyl)benzenethiolato]molybdenum
Methanone, (2-bromophenyl)(2,3-dihydro-1,4-benzodioxin-6-yl)-
N-[2-[Bis(2-hydroxyethyl)amino]ethyl]tetradecanamide
胆盐乳糖培养基
H-Cys-Ile-Ile-Arg-Asn-Cys-Pro-Lys-Gly-NH2 (Disulfide bond)
Trimethylolpropanepoly(oxypropylene)triamine
7H-Pyrrolo[2,3-d]pyrimidin-4-amine, 5-methyl- (9CI)
PHTHALOCYANINE ZINC
Benzenemethanol, 5-bromo-3-fluoro-2-methoxy-
(TB-5-23)-Hydro(methyldiphenylphosphine)tris[2,4,6-tris(1-methylethyl)benzenethiolato]molybdenum
Methanone, (2-bromophenyl)(2,3-dihydro-1,4-benzodioxin-6-yl)-
N-[2-[Bis(2-hydroxyethyl)amino]ethyl]tetradecanamide
胆盐乳糖培养基
H-Cys-Ile-Ile-Arg-Asn-Cys-Pro-Lys-Gly-NH2 (Disulfide bond)
Raw Materials for 5-ethyl-2-methyl-3-pyrazolecarboxylic acid ethyl ester