4-Methylbenzenesulfonhydrazide CAS#1576-35-8
Efficient foaming performance – Produces fine and uniform closed-cell structures in rubber and plastic products.
Enhanced material properties – Provides low shrinkage and high tear resistance, improving product durability.
Good solubility characteristics – Soluble in alkali and common organic solvents such as methanol, ethanol, and butanone, enabling flexible processing.
Versatile intermediate – Serves as an important intermediate in organic synthesis, including applications in pharmaceuticals and pesticides.
Product Description of 4-Methylbenzenesulfonhydrazide CAS#1576-35-8
p-Toluenesulfonyl hydrazide, also known as 4-methylbenzenesulfonylhydrazide, is a white crystalline powder. It is readily soluble in alkali, soluble in methanol, ethanol, and butanone, slightly soluble in water and aldehydes, and insoluble in benzene and toluene.
It is commonly used as a foaming agent for natural rubber, synthetic rubber, and various plastics, enabling the formation of fine, closed-cell structures in rubber and plastic products. These products exhibit low shrinkage and high tear resistance. In addition, it serves as an important intermediate in organic synthesis, particularly in the production of pharmaceuticals and pesticides.
4-Methylbenzenesulfonhydrazide 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) |
| Fp | 60°C |
| Storage temp | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C |
| Solubility | 5g/l |
| Pka | 9.39±0.10(Predicted) |
| Form | Powder |
| Color | White or off-white to slightly grayish |
| Water Solubility | 5 g/L (15 ºC) |
| Sensitive | Moisture Sensitive |
| BRN | 610130 |
| Stability | Light Sensitive |
| InChIKey | ICGLPKIVTVWCFT-UHFFFAOYSA-N |
| 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 Information
| 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 | Yes |
| HazardClass | 4.1 |
| PackingGroup | II |
| HS Code | 29280090 |
Product Application of 4-Methylbenzenesulfonhydrazide CAS#1576-35-8
This product is used as a foaming agent for natural rubber, synthetic rubber, and various plastics, enabling the formation of fine, closed-cell structures in rubber and plastic products. The resulting materials exhibit low shrinkage and high tear resistance.




