2-CHLOROBENZENE-1-SULFONYL CHLORIDE
o-Chlorobenzenesulfonyl chloride
CAS: 2905-23-9
Molecular Formula: C6H4Cl2O2S
2-CHLOROBENZENE-1-SULFONYL CHLORIDE - Names and Identifiers
| Name | o-Chlorobenzenesulfonyl chloride |
| Synonyms | o-chlorobenzenesulfochloride o-chloro-benzenesulfonylchlorid 2-chloro-benzenesulfonylchlorid o-Chlorobenzenesulfonyl chloride 2-chlorobenzenesulfonyl chloride 2-CHLOROBENZENESULFONYL CHLORIDE 2-CHLOROBENZENESULPHONYL CHLORIDE 2-CHLOROBENZENE-1-SULFONYL CHLORIDE Benzenesulfonyl chloride, 2-chloro- |
| CAS | 2905-23-9 |
| EINECS | 220-807-3 |
| InChI | InChI=1/C6H4Cl2O2S/c7-5-3-1-2-4-6(5)11(8,9)10/h1-4H |
2-CHLOROBENZENE-1-SULFONYL CHLORIDE - Physico-chemical Properties
| Molecular Formula | C6H4Cl2O2S |
| Molar Mass | 211.07 |
| Density | 1.548 g/mL at 25 °C (lit.) |
| Melting Point | 26-28℃ |
| Boling Point | 150-152 °C/12 mmHg (lit.) |
| Flash Point | 140°F |
| Water Solubility | It reacts with water. |
| Vapor Presure | 0.00352mmHg at 25°C |
| Appearance | Liquid or Low Melting Solid |
| Color | Clear yellow to orange-red |
| BRN | 974321 |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Sensitive | Moisture Sensitive |
| Refractive Index | n20/D 1.576(lit.) |
| Physical and Chemical Properties | Melting Point: 28.5 ℃, Boiling Point: 96-98 ℃(0.133kPa). |
2-CHLOROBENZENE-1-SULFONYL CHLORIDE - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | 34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2920 8/PG 2 |
| WGK Germany | 2 |
| RTECS | DB8925500 |
| TSCA | Yes |
| HS Code | 29049090 |
| Hazard Note | Corrosive |
| Hazard Class | 8 |
| Packing Group | II |
2-CHLOROBENZENE-1-SULFONYL CHLORIDE - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| uses | pesticide intermediates. |
| production method | mix and stir o-chloroaniline, concentrated hydrochloric acid and glacial acetic acid, cool to below 0 ℃, add sodium nitrite solution dropwise, add SO2 glacial acetic acid solution containing copper chloride after diazotization reaction, and react for 1.5h. Then ice separation was performed and extracted with ether. The extract was washed with alkali water until neutral, dried, evaporated to remove ether, and finally the fraction was collected by decompression distillation at 96-98 ℃(0.133kPa) to obtain o-chlorobenzenesulfonyl chloride. |
| category | toxic substances |
| toxicity classification | poisoning |
| acute toxicity | oral-rat LD50: 7500 mg/kg; Oral-mouse LD50: 2750 mg/kg |
| flammability hazard characteristics | thermal decomposition discharges toxic nitrogen oxides and sulfur oxide smoke |
| storage and transportation characteristics | warehouse low temperature ventilation and drying |
| fire extinguishing agent | water, carbon dioxide, foam, dry powder |
Last Update：2024-04-10 22:29:15
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View History
2-CHLOROBENZENE-1-SULFONYL CHLORIDE
2-甲基-3-苯基-1-丙烯
阿托莫西汀EP杂质C
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2-甲基-3-苯基-1-丙烯
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2-Hydroxyoleanolic acid
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