p-Toluenesulfonamide
- Createtime： 2026-04-14
- Updatetime： 2026-04-15
Product Details
| useage |
Industrial use
|
| deliveryInfo |
|
| appearance |
powder
|
| Molecular Weight |
171.22
|
| aliasen |
|
| supplyCapacity |
50000MT/Month
|
| harbor |
Qingdao,China
|
| minorder |
1KG
|
| Appearance |
White crystalline powder
|
Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
p-Toluenesulfonamide
CAS No.: 70-55-3
Molecular Formula: C7H9NO2S
Molecular Weight: 171.22
Physical and Chemical Properties
- Appearance: White crystalline powder
- Melting Point: 136 - 139 °C
- Density: 1.271 g/cm3
- Solubility: Slightly soluble in cold water, soluble in hot water, ethanol, methanol, acetone and ethyl acetate, insoluble in benzene, petroleum ether
- Stability: Stable under normal temperature and ambient conditions. Not easy to volatilize. Avoid contact with strong oxidants, strong acids and strong alkalis. No decomposition under conventional storage environment.
- Odor: Odorless
Application
- Organic synthesis intermediate: Widely used for synthesis of pharmaceuticals, pesticides, dyes and fine chemical products.
- Plastic additive: Applied as plasticizer, flame retardant and curing agent in resin and plastic industry.
- Electrochemical material: Used in the production of electroplating additives and electrolyte auxiliary agents.
- Laboratory reagent: Common analytical reagent and synthetic raw material for chemical research.
- Adhesive raw material: Used in the formulation of special adhesives and coating materials.
Storage Condition
Keep container tightly sealed. Store in a cool, dry and well-ventilated place. Keep away from direct sunlight, heat sources, oxidizing substances and corrosive chemicals. Separate storage from food and daily chemicals is required.
Certificate of Analysis
| Item | Specification | Test Result | Method |
| Product Name | p-Toluenesulfonamide | Compliant | Visual & Identification |
| CAS No. | 70-55-3 | 70-55-3 | Standard |
| Molecular Formula | C7H9NO2S | C7H9NO2S | Standard |
| Molecular Weight | 171.22 | 171.22 | Standard |
| Appearance | White crystalline powder | White crystalline powder | Visual Inspection |
| Purity (HPLC) | ≥99.0% | 99.61% | High Performance Liquid Chromatography |
| Melting Point | 136 - 139 °C | 137.2 - 138.5 °C | Capillary Method |
| Loss on Drying | ≤0.30% | 0.12% | Karl Fischer Titration |
| Residue on Ignition | ≤0.10% | 0.03% | Gravimetric Method |
| Chloride | ≤150 ppm | <20 ppm | Turbidimetric Method |
| Sulfate | ≤150 ppm | <22 ppm | Turbidimetric Method |
| Heavy Metals | ≤10 ppm | <4 ppm | Atomic Absorption Spectrometry |
Conclusion: The product complies with the above specifications.
Authorized by: QC Department
