ETHYL 1H-PYRAZOLE-3-CARBOXYLATE
Ethyl pyrazole-3-carboxylate
CAS: 5932-27-4
Molecular Formula: C6H8N2O2
ETHYL 1H-PYRAZOLE-3-CARBOXYLATE - Names and Identifiers
ETHYL 1H-PYRAZOLE-3-CARBOXYLATE - Physico-chemical Properties
| Molecular Formula | C6H8N2O2 |
| Molar Mass | 140.14 |
| Density | 1.214 |
| Melting Point | 158-160 °C |
| Boling Point | 279 °C |
| Flash Point | 123 °C |
| Vapor Presure | 0.00407mmHg at 25°C |
| Appearance | powder |
| Color | yellowish-orange |
| pKa | 11.04±0.10(Predicted) |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | 1.521 |
| MDL | MFCD00159643 |
| Physical and Chemical Properties | Off-white crystals |
ETHYL 1H-PYRAZOLE-3-CARBOXYLATE - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| TSCA | No |
| Hazard Class | IRRITANT |
ETHYL 1H-PYRAZOLE-3-CARBOXYLATE - Introduction
Ethyl pyrazole-3-carboxylate is a chemical substance with the chemical formula C8H10N2O3. It is a white crystalline solid with an aromatic smell.
It can be used as an intermediate in organic synthesis. Specific uses include synthetic drugs, pesticides and other organic compounds. Ethyl pyrazole-3-carboxylate can react with other compounds to form new compounds, thus playing an important role in organic synthesis.
The preparation of Ethyl pyrazole-3-carboxylate is usually prepared by the reaction of acetylacetone with phenylhydrazine. Acetylacetone is first reacted with phenylhydrazine to form the pyrazole ring, followed by the reaction of ethyl acetate with phosphorus trichloride to give Ethyl pyrazole-3-carboxylate.
Regarding safety information, Ethyl pyrazole-3-carboxylate is a chemical that is irritating to the skin and eyes. Care should be taken to avoid contact with skin, eyes and respiratory tract. Wear appropriate protective gloves, glasses and masks during operation. In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical help.
In addition, during storage and transportation, care should be taken to prevent heat, moisture and avoid contact with oxidants. Please store and use in accordance with the correct methods and standards to ensure safety.
It can be used as an intermediate in organic synthesis. Specific uses include synthetic drugs, pesticides and other organic compounds. Ethyl pyrazole-3-carboxylate can react with other compounds to form new compounds, thus playing an important role in organic synthesis.
The preparation of Ethyl pyrazole-3-carboxylate is usually prepared by the reaction of acetylacetone with phenylhydrazine. Acetylacetone is first reacted with phenylhydrazine to form the pyrazole ring, followed by the reaction of ethyl acetate with phosphorus trichloride to give Ethyl pyrazole-3-carboxylate.
Regarding safety information, Ethyl pyrazole-3-carboxylate is a chemical that is irritating to the skin and eyes. Care should be taken to avoid contact with skin, eyes and respiratory tract. Wear appropriate protective gloves, glasses and masks during operation. In case of contact with skin or eyes, rinse immediately with plenty of water and seek medical help.
In addition, during storage and transportation, care should be taken to prevent heat, moisture and avoid contact with oxidants. Please store and use in accordance with the correct methods and standards to ensure safety.
Last Update：2024-04-09 20:52:54
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