N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]-p-toluenesulphonamide

2-(2-(对甲苯磺酰基氨基)苯基)-4H-3,1-苯并恶嗪-4-酮

Also known as: 4-methyl-N-[2-(4-oxo-1,3-benzoxazin-2-yl)phenyl]benzenesulfonamide, 2-(2-Tosylaminophenyl)-4H-3,1-benzoxazin-4-one, 2-(2-Tosylamidophenyl)-4H-3,1-benzoxazin-4-one, Benzenesulfonamide, 4-methyl-N-2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl-, N-[2-(4-keto-1,3-benzoxazin-2-yl)phenyl]-4-methyl-benzenesulfonamide

N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]-p-toluenesulphonamide (CAS 3808-20-6) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C21H16N2O4S and a molecular weight of 392.42800 g/mol. It is also known as 4-methyl-N-[2-(4-oxo-1,3-benzoxazin-2-yl)phenyl]benzenesulfonamide, 2-(2-Tosylaminophenyl)-4H-3,1-benzoxazin-4-one and 2-(2-Tosylamidophenyl)-4H-3,1-benzoxazin-4-one. Key properties include a boiling point of 587ºC at 760mmHg and a density of 1.35g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3808-20-6
Jingsj CID
J-1518425-6
Molecular Formula
C21H16N2O4S
Chinese Name
2-(2-(对甲苯磺酰基氨基)苯基)-4H-3,1-苯并恶嗪-4-酮
Molecular Weight
392.42800 g/mol
Category
Solvents
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point587ºC at 760mmHg
Density1.35g/cm3

Frequently Asked Questions

What is the CAS number of N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]-p-toluenesulphonamide?

The CAS number of N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]-p-toluenesulphonamide is 3808-20-6.

What are the molecular formula and molecular weight of N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]-p-toluenesulphonamide?

N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]-p-toluenesulphonamide has molecular formula C21H16N2O4S and molecular weight 392.42800 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]-p-toluenesulphonamide (CAS 3808-20-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1518425-6 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.