4-Methylbenzenesulfonhydrazide
Synonym(s):TSH;Tosylhydrazide;p-Toluenesulfonhydrazide;p-Toluenesulfonic acid hydrazide;p-Toluenesulfonyl hydrazide
- CAS NO.：1576-35-8
- Empirical Formula: C7H10N2O2S
- Molecular Weight: 186.23
- MDL number: MFCD00007588
- EINECS: 216-407-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-02-23 21:28:46
What is 4-Methylbenzenesulfonhydrazide?
Chemical properties
white to off-white powder
The Uses of 4-Methylbenzenesulfonhydrazide
4-Methylbenzenesulfonhydrazide was widely used reagent for the preparation of tosylhydrazones.
The Uses of 4-Methylbenzenesulfonhydrazide
p-Toluenesulfonyl hydrazide is used as a reagent for the preparation of tosylhydrazones. It was used to prepare dipyrazolo[1,5-a:4?,3?-c]pyridines and 1,2,3-selenadiazole derivatives.
Flammability and Explosibility
Not classified
Purification Methods
Dissolve the hydrazide in hot MeOH (~1g/4mL), filter through Celite and precipitate the material by adding 2-2.5 volumes of distilled H2O. Dry it in air or in a vacuum. [Fiedman et al. Org Synth Coll Vol V 1055 1973, Beilstein 11 II 66.]
Properties of 4-Methylbenzenesulfonhydrazide
| Melting point: | 103-108 °C(lit.) |
| Boiling point: | 340.5±35.0 °C(Predicted) |
| Density | 1.42g/cm3 |
| vapor pressure | 0Pa at 20℃ |
| refractive index | 1.5400 (estimate) |
| Flash point: | 60°C |
| storage temp. | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C |
| solubility | 5g/l |
| form | Powder |
| pka | 9.39±0.10(Predicted) |
| color | White or off-white to slightly grayish |
| Water Solubility | 5 g/L (15 ºC) |
| Sensitive | Moisture Sensitive |
| BRN | 610130 |
| Stability: | Light Sensitive |
| CAS DataBase Reference | 1576-35-8(CAS DataBase Reference) |
| EPA Substance Registry System | Benzenesulfonic acid, 4-methyl-, hydrazide (1576-35-8) |
Safety information for 4-Methylbenzenesulfonhydrazide
| Signal word | Warning |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H290:Corrosive to Metals |
| Precautionary Statement Codes |
P234:Keep only in original container. P390:Absorb spillage to prevent material damage. |
Computed Descriptors for 4-Methylbenzenesulfonhydrazide
| InChIKey | ICGLPKIVTVWCFT-UHFFFAOYSA-N |
4-Methylbenzenesulfonhydrazide manufacturer
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