10128-55-9

Basic information

• Product Name: N-[2-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl]-2-naphthalenesulfonamide
• Synonyms: N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulphonamide;OXOBENZOXAZINYL NAPHTHALENE SULFOANILIDE;2-/2-(2-naphtalinesulfonylamino)-phenyl/4H-3,1-benzoxazinon-4 (Luminor green 525 T);2-Naphthalenesulfonamide, N-2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl-;LUMINORE GREEN 525T;n-[2-(4-oxo-4h-3,1-benzoxazin-2-yl)phenyl]-2-naphthalenesulfonamid;N-[2-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl]-2-naphthalenesulfonamide;Einecs 233-360-4
• CAS NO: 10128-55-9
• Molecular Formula: C₂₄H₁₆N₂O₄S
• Molecular Weight: 428.46
• EINECS: 233-360-4
• Product Categories: Piperazine derivates
• Mol File: 10128-55-9.mol
• Article Data: 1

Chemical Properties

• Melting Point: 184.8-185.5 °C
• Boiling Point: 629.7 °C at 760 mmHg
• Flash Point: 334.6 °C
• Appearance: /
• Density: 1.38 g/cm³
• Vapor Pressure: 9.09E-16mmHg at 25°C
• Refractive Index: 1.691
• PKA: 7.43±0.50(Predicted)
• Water Solubility: 46.11μg/L at 18.8℃
• CAS DataBase Reference: N-[2-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl]-2-naphthalenesulfonamide(CAS DataBase Reference)
• NIST Chemistry Reference: N-[2-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl]-2-naphthalenesulfonamide(10128-55-9)
• EPA Substance Registry System: N-[2-(4-Oxo-4H-3,1-benzoxazin-2-yl)phenyl]-2-naphthalenesulfonamide(10128-55-9)

Safety Data

• Hazardous Substances Data: 10128-55-9(Hazardous Substances Data)

Usage

Flammability and Explosibility

Notclassified

InChI:InChI=1/C24H16N2O4S/c27-24-20-10-4-5-11-21(20)25-23(30-24)19-9-3-6-12-22(19)26-31(28,29)18-14-13-16-7-1-2-8-17(16)15-18/h1-15,26H

Synthetic route

2-(2'-amino-phenyl)-benzo[d][1,3]oxazin-4-one (7265-24-9) + pyrographite (7440-44-0) + 2-Naphthalenesulfonyl chloride (93-11-8) → N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulfonamide (10128-55-9)

Conditions	Yield
In pyridine; dichloromethane; ethyl acetate

ethanol (64-17-5) + N-[2-(4-oxo-4H-3,1-benzoxazin-2-yl)phenyl]naphthalene-2-sulfonamide (10128-55-9) → 2-[2-(naphthalene-2-sulfonylamino)-benzoylamino]-benzoic acid ethyl ester (1318027-89-2)

Conditions	Yield
With sodium hydroxide	97%

Upstream product

• 7265-24-9 2-(2'-amino-phenyl)-benzo[d][1,3]oxazin-4-one 
• 7440-44-0 pyrographite 
• 93-11-8 2-Naphthalenesulfonyl chloride 

Downstream Products

• 1318027-89-2 2-[2-(naphthalene-2-sulfonylamino)-benzoylamino]-benzoic acid ethyl ester 

Relevant articles and documents

Fluorescent compounds and their use

Compounds, most of which are novel, and which have been found to have properties very suitable for use in fluorescent inks intended for marking security documents, are of formula I wherein R1, R2, R3 and R4 are independently H, Z or Z-substituted phenyl; and Ar is optionally Z-substituted phenyl or heterocyclyl; in which the Z's are independently selected from C1 4alkyl, OH, C1-C4 alkoxy, halogen, NO2, NH2, C1 4 alkylamino, di(C1 4 alkyl)amino and phenyl; provided that R1, R2, R3 and R4 are not all H when Ar is alkylphenyl or alkoxyphenyl.