Benzenesulfonyl chloride, 4-nitro-
4-NITROBENZENESULFONYL CHLORIDE
CAS: 98-74-8
Molecular Formula: C6H4ClNO4S
Benzenesulfonyl chloride, 4-nitro- - Names and Identifiers
Benzenesulfonyl chloride, 4-nitro- - Physico-chemical Properties
| Molecular Formula | C6H4ClNO4S |
| Molar Mass | 221.62 |
| Density | 1.602 (estimate) |
| Melting Point | 75 °C |
| Boling Point | 143-144 °C (1.5002 mmHg) |
| Flash Point | 143-144°C/1.5mm |
| Water Solubility | Insoluble |
| Solubility | soluble in Toluene |
| Vapor Presure | 0.009Pa at 20℃ |
| Appearance | Powder |
| Color | yellow |
| BRN | 746543 |
| PH | 1 (H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Sensitive | Moisture Sensitive |
| Refractive Index | 1.6000 (estimate) |
| Physical and Chemical Properties | Melting Point: 75.5 - 78.5 |
Benzenesulfonyl chloride, 4-nitro- - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R34 - Causes burns R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| 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.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3261 8/PG 2 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 21 |
| TSCA | Yes |
| HS Code | 29049085 |
| Hazard Note | Corrosive/Moisture Sensitive |
| Hazard Class | 8 |
| Packing Group | II |
Benzenesulfonyl chloride, 4-nitro- - Reference Information
| LogP | 2.1 at 20℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | for organic synthesis. Assay of primary and secondary amines. p-nitrobenzenesulfonyl chloride is an important intermediate in organic synthesis, which is mainly used in the synthesis of thiamine drugs in the pharmaceutical industry. |
| production method | mix 60 g4,4 '-dinitrodiphenyl disulfide, concentrated hydrochloric acid and 60ml concentrated nitric acid, it was heated to 80 °c and reacted with chlorine gas. At the end of the reaction, the resulting sulfonyl chloride was decanted, washed with water at 80 ° C. To obtain a crude product, which was recrystallized from glacial acetic acid to obtain 72g of p-nitrobenzenesulfonyl chloride. |
Last Update：2024-04-10 22:29:15
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