p-Toluenesulfonamide
High-quality chemical supplied by Jinan Shenghe Chemical Co., Ltd. Competitive pricing, reliable delivery, and full technical support for B2B buyers worldwide.
Specifications
| Molecular Formula | C7H9NO2S |
|---|---|
| Molecular Weight | 171.2169 |
| Melting Point | 136-140℃ |
| Boiling Point | 322.2°C at 760 mmHg |
| Flash Point | 148.6°C |
| Water Solubility | 0.32 g/100 mL (25℃) |
| Vapor Pressure | 0.000285mmHg at 25°C |
Detailed Chemical Properties & Synonyms
Physical & Chemical Properties
外观 白色结晶体 熔点 136-140°C 沸点 221°C (10 mmHg) 闪点 202°C 水溶性 0.32 g/100 mL (25° C)
Applications / Uses
用于制造增塑剂、消毒剂,也可用于生产合成树脂、涂料、萤光染料等
Description
p-Toluenesulfonamide · CAS 70-55-3 · C7H9NO2S. UNII I8266RI90M. Boiling Point: BP: 214 °C at 10 mm Hg; Melting Point: 138 °C; Melting Point: MP: 105 °C (Hydrated).
Identification
| CAS Registry Number | 70-55-3 |
|---|---|
| PubChem CID | 6269 |
| Molecular formula | C7H9NO2S |
| IUPAC name | 4-methylbenzenesulfonamide |
| UNII (FDA) | I8266RI90M |
Computed Descriptors
| Molecular Weight | 171.22 |
|---|---|
| XLogP3 | 0.8 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 1 |
| Exact Mass | 171.03539970 |
| Monoisotopic Mass | 171.03539970 |
| Topological Polar Surface Area | 68.5 |
| Heavy Atom Count | 11 |
| Formal Charge | 0 |
Physical & Chemical Properties
| Boiling Point | BP: 214 °C at 10 mm Hg |
|---|---|
| Melting Point | 138 °C |
| Melting Point | MP: 105 °C (Hydrated) |
| Flash Point | 202 °C (396 °F) Closed cup |
| Flash Point | 202 °C c.c. |
| Solubility | In water, 3.16X10+3 mg/L at 25 °C |
| Vapor Pressure | 0.000096 [mmHg] |
| Vapor Pressure | 0.000096 [mm Hg] @25 °C |
| LogP | log Kow = 0.82 |
| LogP | 0.82 |
Physical description & handling notes
- Dry Powder; Liquid
- White solid; [Hawley] White powder; [MSDSonline]
- WHITE CRYSTALS.
- Monoclinic plates (w+2)
- White leaflets
- Slightly soluble in water
Regulatory Status
| Regulatory & Food Contact | FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS |
|---|---|
| GHS notification summary | 57% (146 / 256) |
GHS Hazard Classification
| GHS notification summary | 57% (146 / 256) |
|---|---|
| Reported hazard statements | H319 (36.3%) |
This chemical does not meet GHS hazard criteria for 57% (146 of 256) of all reports.
H319 (36.3%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
Documented Uses
- Painting (Pigments, Binders, and Biocides) [Category: Paint]
- Organic synthesis, plasticizers and resins, fungicide and mildewicide in paints and coatings.
- Used in production of chloroamines, e.g., chloramine T and dichloramine T.
- … carrier in fluorescent pigments. /Ortho- and para-toluenesulfonamide mixture/
- The ortho- and para-toluenesulfonamide mixture is used as a reactive plasticizer in hot-melt adhesives to improve the flow properties of thermosetting resins (e.g., melamine, urea and phenolic resins) and to impart flexibility to coatings based on resins made from casein, shellac, zein and soya protein. /Ortho- and para-toluenesulfonamide mixture/
- By amination of para-toluene sulfonchloride.
Synonyms
P-TOLUENESULFONAMIDE; 4-Methylbenzenesulfonamide; 70-55-3; 4-Toluenesulfonamide; Tosylamide; p-Tosylamide; Toluene-4-sulfonamide; Benzenesulfonamide, 4-methyl-; para-Toluenesulfonamide; p-Toluenesulfonylamide; p-Tolylsulfonamide; p-Methylbenzenesulfonamide; Tolylsulfonamide; Toluene-4-sulphonamide; Toluene-p-sulphonamide; 4-Toluenesulfanamide
Frequently Asked Questions
What are the CAS number and molecular formula of p-Toluenesulfonamide?
CAS 70-55-3; molecular formula C7H9NO2S; molecular weight — g/mol.
What other names is p-Toluenesulfonamide known by?
P-TOLUENESULFONAMIDE, 4-Methylbenzenesulfonamide, 70-55-3, 4-Toluenesulfonamide, Tosylamide, p-Tosylamide.
What is the regulatory status of p-Toluenesulfonamide?
Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.
Is p-Toluenesulfonamide classified as hazardous?
57% of GHS notifications report no hazard classification (146 of 256).
What are the key physical properties of p-Toluenesulfonamide?
Boiling Point: BP: 214 °C at 10 mm Hg; Melting Point: 138 °C; Melting Point: MP: 105 °C (Hydrated); Flash Point: 202 °C (396 °F) Closed cup.
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.
Applications
用于制造增塑剂、消毒剂,也可用于生产合成树脂、涂料、萤光染料等
Packaging & Shipping
- Standard: 25 kg fiber drum / 200 kg steel drum with double PE liner
- Small pack: 1 kg / 5 kg aluminum foil bag for lab & sample
- Custom: packaging size and labeling per customer requirement
- Lead time: in-stock items ship within 3-5 business days
- Documents: COA, MSDS / SDS, TDS provided with every shipment
- Global: air, sea (FCL / LCL) and express to 80+ countries
Storage & Handling
Store in a cool, dry, well-ventilated place away from heat, direct sunlight and incompatible materials. Keep container tightly closed. Use appropriate personal protective equipment and refer to the SDS for full safety guidance before handling.
Frequently Asked Questions
Yes. A batch-specific COA and free or charged sample are available on request before bulk ordering.
Yes. We offer custom grade, particle size and purity adjustment based on your application and order volume.
MOQ depends on the product; small quantities are supported for R&D and trial runs.
Every batch is tested in-house and retains full traceability from raw material to finished goods.
Why Choose Jinan Shenghe Chemical
Request a Quote
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About Jinan Shenghe Chemical Co., Ltd.
Jinan Shenghe Chemical Co., Ltd.
We are a professional chemical supplier based in Jinan, China. Since 2013, we have been connecting manufacturers and global B2B buyers with reliable sourcing, quality-controlled products and efficient logistics.
Our business covers food & feed additives, fine chemicals, pharmaceutical intermediates, eco-materials, coatings and specialty chemicals — all non-hazardous and compliant with our licensed scope.