N-Methyl-p-toluenesulfonamide
Also known as: N,4-Dimethylbenzenesulfonamide, p-Toluenesulfonamide, N-methyl-, Benzenesulfonamide, N,4-dimethyl-, MTSA, N-Methyl-p-toluolsulfonamide, N-Methyl-para-toluenesulfonamide, (p-Tolylsulfonyl)methylamine, 4-Methyl-N-methylbenzenesulfonamide, NSC 2223, NSC 36991, MFCD00008285, EINECS 211-366-8
N-Methyl-p-toluenesulfonamide (CAS 640-61-9) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C8H11NO2S and a molecular weight of 185.243 g/mol. Key properties include a melting point of 76-79 °C(lit.), a boiling point of 296.5±33.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 133.1±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 640-61-9
- Jingsj CID
- J-888560-5
- Molecular Formula
- C8H11NO2S
- Molecular Weight
- 185.243 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 76-79 °C(lit.) |
|---|---|
| Boiling Point | 296.5±33.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 133.1±25.4 °C |
| Exact Mass | 185.051056 |
| PSA | 54.55000 |
| LogP | 1.43 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.532 |
Customs & Trade Information
| HS Code | 2935009090 |
|---|---|
| Summary | 2935009090 other sulphonamides VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:35.0% |
Frequently Asked Questions
What is the CAS number of N-Methyl-p-toluenesulfonamide?
The CAS number of N-Methyl-p-toluenesulfonamide is 640-61-9.
What are the molecular formula and molecular weight of N-Methyl-p-toluenesulfonamide?
N-Methyl-p-toluenesulfonamide has molecular formula C8H11NO2S and molecular weight 185.243 g/mol.
What are the upstream and downstream products of N-Methyl-p-toluenesulfonamide?
For N-Methyl-p-toluenesulfonamide, Upstream Products: tert-Butyl methyl ether, p-Toluenesulfonamide, (2-Methoxyethyl)benzene; Downstream Products: 4-Tolyl-N-fluoro-N-methylsulfonamide, Methyl p-toluenesulfonate, N-Methyl-N-nitrosotoluene-4-sulphonamide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "N-Methyl-p-toluenesulfonamide (CAS 640-61-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-888560-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.