p-Sulfonamidophenylhydrazine
4-Sulfonamidophenylhydrazine hydrochloride
CAS: 17852-52-7;27918-19-0
Molecular Formula: C6H10ClN3O2S
p-Sulfonamidophenylhydrazine - Names and Identifiers
p-Sulfonamidophenylhydrazine - Physico-chemical Properties
| Molecular Formula | C6H10ClN3O2S |
| Molar Mass | 223.68 |
| Density | 1.644[at 20℃] |
| Melting Point | 149-152°C(lit.) |
| Boling Point | 434.7 °C at 760 mmHg |
| Water Solubility | Soluble in water. |
| Solubility | Organic solvents such as DMSO and ethanol |
| Appearance | Powder |
| Color | White to Light yellow to Light orange |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Sensitive | Hygroscopic |
| Physical and Chemical Properties | Appearance: white powder |
| Use | Pharmaceutical Intermediates, mainly used in the production of celecoxib |
p-Sulfonamidophenylhydrazine - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| RTECS | DA9380000 |
| HS Code | 29350090 |
| Hazard Note | Irritant |
p-Sulfonamidophenylhydrazine - Reference Information
| LogP | -0.99 at 20℃ |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Preparation | The β-diketone intermediate is obtained by Claisen condensation of p-methyl acetophenone and ethyl trifluoroacetate under alkaline conditions. The intermediate can be directly condensed and cyclized with p-hydrazinyl benzenesulfonamide hydrochloride in ethanol without separation, and celecoxib products can be obtained after recrystallization of the crude product. |
| Use | Used as pesticide, pharmaceutical and dye intermediates Used as pharmaceutical intermediates and others. Pharmaceutical intermediates, mainly used in the production of Celicose |
Last Update：2024-04-09 20:52:54
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