21900-54-9
2-Chloro-4-fluorobenzoyl chloride
CAS: 21900-54-9
Molecular Formula: C7H3Cl2FO
21900-54-9 - Names and Identifiers
| Name | 2-Chloro-4-fluorobenzoyl chloride |
| Synonyms | 2-Chloro-4-fluorobenzoyl chloride 2-CHLORO-4-FLUOROBENZOYL CHLORIDE Benzoyl chloride, 2-chloro-4-fluoro- 2-CHLORO-4-FLUOROBENZENE-1-CARBONYL CHLORIDE 2-Chloro-4-fluorobenzene-1-carbonyl chloride Benzoyl chloride, 2-chloro-4-fluoro- (8CI,9CI) |
| CAS | 21900-54-9 |
| EINECS | 623-229-3 |
| InChI | InChI=1/C7H3Cl2FO/c8-6-3-4(10)1-2-5(6)7(9)11/h1-3H |
21900-54-9 - Physico-chemical Properties
| Molecular Formula | C7H3Cl2FO |
| Molar Mass | 193 |
| Density | 1.447 g/mL at 25 °C |
| Melting Point | 16 °C |
| Boling Point | 98-102 °C (15 mmHg) |
| Flash Point | 82-84°C/15mm |
| Vapor Presure | 0.162mmHg at 25°C |
| BRN | 2254071 |
| Sensitive | Moisture Sensitive |
| Refractive Index | 1.549-1.551 |
21900-54-9 - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R34 - Causes burns R29 - Contact with water liberates toxic gas R22 - Harmful if swallowed |
| Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | 3265 |
| WGK Germany | 3 |
| HS Code | 29163990 |
| Hazard Note | Corrosive |
| Hazard Class | 8 |
| Packing Group | II |
21900-54-9 - Introduction
It is an organic compound with the chemical formula C7H3Cl2FO and the structural formula ClC6H3COCl. It is a colorless to yellow liquid with a pungent odor at room temperature.
The main use of chloride is as an important intermediate in chemical synthesis. It is commonly used in the synthesis of pesticides, drugs and dyes. Because it has an active electrophilic chlorine atom, it can be used as a chlorinating agent in organic synthesis reactions, for example, for substitution reactions or acylation reactions.
The preparation method of chloride is usually obtained by reacting 2-chloro-4-fluorobenzoic acid with phosphorous chloride. First, 2-chloro-4-fluorobenzoic acid is dissolved in an organic solvent, and excess phosphorus chloride is added. After the reaction is complete, the remaining phosphorus chloride and organic solvent are removed, it is possible to obtain.
When using chloride, you need to pay attention to its safety. Because it is a strong acidic compound, it is irritating and should avoid direct contact with skin and eyes. Wear protective gloves, goggles and protective clothing during operation. At the same time, keep away from fire and heat sources during storage and handling to prevent them from burning or exploding. In addition, the compound should be stored in a dry, well-ventilated place to avoid contact with incompatible substances.
The main use of chloride is as an important intermediate in chemical synthesis. It is commonly used in the synthesis of pesticides, drugs and dyes. Because it has an active electrophilic chlorine atom, it can be used as a chlorinating agent in organic synthesis reactions, for example, for substitution reactions or acylation reactions.
The preparation method of chloride is usually obtained by reacting 2-chloro-4-fluorobenzoic acid with phosphorous chloride. First, 2-chloro-4-fluorobenzoic acid is dissolved in an organic solvent, and excess phosphorus chloride is added. After the reaction is complete, the remaining phosphorus chloride and organic solvent are removed, it is possible to obtain.
When using chloride, you need to pay attention to its safety. Because it is a strong acidic compound, it is irritating and should avoid direct contact with skin and eyes. Wear protective gloves, goggles and protective clothing during operation. At the same time, keep away from fire and heat sources during storage and handling to prevent them from burning or exploding. In addition, the compound should be stored in a dry, well-ventilated place to avoid contact with incompatible substances.
Last Update：2024-04-09 21:11:58
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