4-(Methylsulfonyl)-2-nitroaniline
Also known as: 4-mesyl-2-nitroaniline, 4-methanesulfonyl-2-nitroaniline, 4-methylsulfonyl-2-nitroaniline, 4-methylsulphonyl-2-nitroaniline, 2-nitro-4-methylsulphonylaniline, 1-amino-4-methylsulphonyl-2-nitrobenzene, Benzenamine, 4-(methylsulfonyl)-2-nitro-, 4-amino-3-nitrophenyl methyl sulfone
4-(Methylsulfonyl)-2-nitroaniline (CAS 21731-56-6) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C7H8N2O4S and a molecular weight of 216.214 g/mol. Key properties include a melting point of 200-202ºC, a boiling point of 463.3±45.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 234.0±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 21731-56-6
- Jingsj CID
- J-1518677-3
- Molecular Formula
- C7H8N2O4S
- Molecular Weight
- 216.214 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 200-202ºC |
|---|---|
| Boiling Point | 463.3±45.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 234.0±28.7 °C |
| Exact Mass | 216.020477 |
| PSA | 114.36000 |
| LogP | 1.04 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.602 |
Customs & Trade Information
| HS Code | 2921420090 |
|---|---|
| Summary | HS:2921420090 aniline derivatives and their salts VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-(Methylsulfonyl)-2-nitroaniline?
The CAS number of 4-(Methylsulfonyl)-2-nitroaniline is 21731-56-6.
What are the molecular formula and molecular weight of 4-(Methylsulfonyl)-2-nitroaniline?
4-(Methylsulfonyl)-2-nitroaniline has molecular formula C7H8N2O4S and molecular weight 216.214 g/mol.
What are the upstream and downstream products of 4-(Methylsulfonyl)-2-nitroaniline?
For 4-(Methylsulfonyl)-2-nitroaniline, Upstream Products: 1-Fluoro-4-(methylsulfonyl)-2-nitrobenzene, 4-(Methylsulfanyl)-2-nitroaniline, 4'-(Methylsulfonyl)acetanilide; Downstream Products: 1-(Methylsulfonyl)-3-nitrobenzene, 4-(methylsulfonyl)benzene-1,2-diamine, 4-(Methylsulfonyl)-2-nitrophenol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-(Methylsulfonyl)-2-nitroaniline (CAS 21731-56-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1518677-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.