24390-69-0

Basic information

• Product Name: 1-METHOXY-4-(PHENYLAZO)NAPHTHALENE
• Synonyms: (E)-1-(4-methoxy-1-naphthyl)-2-phenyldiazene; diazene, 1-(4-methoxy-1-naphthalenyl)-2-phenyl-, (E)-
• CAS NO: 24390-69-0
• Molecular Formula: C₁₇H₁₄N₂O
• Molecular Weight: 262.3139
• Mol File: 24390-69-0.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 435.5°C at 760 mmHg
• Flash Point: 174.8°C
• Appearance: /
• Density: 1.11g/cm³
• Vapor Pressure: 2.21E-07mmHg at 25°C
• Refractive Index: 1.599
• CAS DataBase Reference: 1-METHOXY-4-(PHENYLAZO)NAPHTHALENE(CAS DataBase Reference)
• NIST Chemistry Reference: 1-METHOXY-4-(PHENYLAZO)NAPHTHALENE(24390-69-0)
• EPA Substance Registry System: 1-METHOXY-4-(PHENYLAZO)NAPHTHALENE(24390-69-0)

Safety Data

• Hazardous Substances Data: 24390-69-0(Hazardous Substances Data)

Usage

Chemical family

Azo dyes

Physical appearance

Deep red solid

Usage in industries

Textiles, paper, and cosmetics

Application in scientific research

Fluorescent probe for studying lipid bilayers and membranes

Safety concerns

Potential health hazards and environmental impacts

InChI:InChI=1/C17H14N2O/c1-20-17-12-11-16(14-9-5-6-10-15(14)17)19-18-13-7-3-2-4-8-13/h2-12H,1H3/b19-18+

Upstream product

• 82166-21-0 methyl cyclohexane 
• 74-88-4 methyl iodide 
• 77-78-1 dimethyl sulfate 
• 3651-02-3 4-Phenylazo-1-naphthol 
• 186581-53-3 diazomethane 

Downstream Products

• 18916-57-9 4-methoxy-1,2-naphthoquinone 
• 7473-19-0 4-ethoxynaphthalene-1,2-dione 
• 130-15-4 [1,4]naphthoquinone 
• 71-43-2 benzene 
• 108-95-2 phenol 

Relevant articles and documents

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Protonation Equilibria of 1-Arylazo-4-naphthols and 1-Arylazo-4-Methoxynaphthalenes

The spectroscopic behaviour of substituted 1-arylazo-4-naphthols and 1-arylazo-4-methoxynaphthalenes has been investigated in a solvent system consisting of 20percent v/v ethanol and 80percent v/v sulphuric acid-water in order to measure the protonation equilibrium constants.Some naphthols (I; X=H, o-OCH3, p-OCH3, o-CH3, p-Cl) and all the methoxynaphthalenes (II) show two absorption bands due to the free base and the conjugate acid, with a characteristic isosbestic point.For these compounds, pKBH(1+) values have been calculated using Jaffe's acidity function.Other naphthols (I; X=m-OCH3, m-CH3, p-CH3, o-Cl, m-Cl) show a single absorption band which shifts on changing the acidity of the medium.The lack of an isosbestic point has been ascribed to the overlap of the azo-hydrazone equilibrium with the protonation equilibrium of the azo-group.For methoxynaphthalenes, separate correlations of pKBH(1+) values with ?m and ?p of the substituents are found, owing to the presence in the molecules of two distinct basic centres.