4-Methylbenzenesulfonhydrazide
- Product Name4-Methylbenzenesulfonhydrazide
- CAS1576-35-8
- CBNumberCB6156664
- MFC7H10N2O2S
- MW186.23
- EINECS216-407-3
- MDL NumberMFCD00007588
- MOL File1576-35-8.mol
Chemical Properties
| 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 |
| InChI | 1S/C7H10N2O2S/c1-6-2-4-7(5-3-6)12(10,11)9-8/h2-5,9H,8H2,1H3 |
| InChIKey | ICGLPKIVTVWCFT-UHFFFAOYSA-N |
| SMILES | Cc1ccc(cc1)S(=O)(=O)NN |
| LogP | 0.55 at 25℃ |
| CAS DataBase Reference | 1576-35-8(CAS DataBase Reference) |
| EPA Substance Registry System | Benzenesulfonic acid, 4-methyl-, hydrazide (1576-35-8) |
Safety
| Symbol(GHS) |
![]() GHS05 |
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| Signal word | Warning | |||||||||
| Hazard statements | H290 | |||||||||
| Precautionary statements | P234-P390 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges | |||||||||
| Hazard Codes | F,Xn | |||||||||
| Risk Statements | 11-22-44-2017/11/22 | |||||||||
| Safety Statements | 16-26 | |||||||||
| RIDADR | UN 3226 4.1 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | MW0210000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 4.1 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 2935900090 | |||||||||
| Storage Class | 5.2 - Organic peroxides and self-reacting hazardous materials | |||||||||
| Hazard Classifications |
Acute Tox. 3 Oral Aquatic Chronic 2 Self-react. D |
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| REACH Registrations | Active | |||||||||
| Limited Quantities | 1.0 Kg (2.2 lbs) | |||||||||
| Excepted Quantities | Not Permitted as Excepted Quantity | |||||||||
| NFPA 704: |
|

A base-mediated semihydrogenation of ynamides using 4-Methylbenzenesulfonhydrazide (p-toluenesulfonyl
hydrazide) as an inexpensive and easy-to-handle hydrogen donor provides the
thermodynamically unfavorable Z-enamides exclusively without
overhydrogenation and reduction of other functional groups.