6250-23-3

Basic information

• Product Name: p-[[p-(phenylazo)phenyl]azo]phenol
• Synonyms: p-[[p-(phenylazo)phenyl]azo]phenol;4-[[4-(phenylazo)phenyl]azo]-pheno;C.I. Disperse yellow 23;C.I.Disperse Yellow 23(26070);Disperse golden yellow E-3RL;Esterquinone Light Yellow 3RLL;Laytl Yellow 4RL;Terasil Golden Yellow R
• CAS NO: 6250-23-3
• Molecular Formula: C₁₈H₁₄N₄O
• Molecular Weight: 302.32996
• EINECS: 228-370-0
• Product Categories: Organics
• Mol File: 6250-23-3.mol
• Article Data: 5

Chemical Properties

• Melting Point: 179-181 °C
• Boiling Point: 443.37°C (rough estimate)
• Flash Point: 349.3 °C
• Appearance: /
• Density: 1.2276 (rough estimate)
• Vapor Pressure: 1.82E-11mmHg at 25°C
• Refractive Index: 1.6700 (estimate)
• Storage Temp.: Refrigerator
• Solubility: DMSO (Slightly, Heated, Sonicated), Methanol (Slightly, Sonicated)
• PKA: 8.81±0.15(Predicted)
• Water Solubility: 0.06047ug/L(25 oC)
• CAS DataBase Reference: p-[[p-(phenylazo)phenyl]azo]phenol(CAS DataBase Reference)
• NIST Chemistry Reference: p-[[p-(phenylazo)phenyl]azo]phenol(6250-23-3)
• EPA Substance Registry System: p-[[p-(phenylazo)phenyl]azo]phenol(6250-23-3)

Safety Data

• Hazardous Substances Data: 6250-23-3(Hazardous Substances Data)

Usage

Uses

Disperse Yellow 23 is used in method for analyzing Azo compounds in sample using liquid Chromatograph mass spectrometer. Dyes and metabolites, Environmental Testing.

Preparation

P -Methylaniline and 4 – Chloro – 1, 2 – dinitrobenzene condensation

Properties and Applications

Red light yellow, yellow orange, orange. Used for polyester fiber, polyamide fiber, vinegar dyeing. Standard Ironing Fastness Light Fastness Persperation Fastness Washing Fastness Fading Stain Fading Stain Fading Stain AATCC 7 4-5 4

Standard

Ironing Fastness

Fading

Stain

InChI:InChI=1/C18H14N4O/c23-18-12-10-17(11-13-18)22-21-16-8-6-15(7-9-16)20-19-14-4-2-1-3-5-14/h1-13,23H/b20-19+,22-21+

Upstream product

• 7664-93-9 sulfuric acid 
• 111823-65-5 α-1,4-bis-benzenazoxy-benzene 
• 60-09-3 4-Aminoazobenzene 
• 108-95-2 phenol 
• 117070-63-0 4-phenylazo-benzenediazonium; hydroxide 
• 60-09-3 aniline yellow 

Downstream Products

• 1207613-47-5 C₄₁H₄₄N₄O₃ 
• 1207613-46-4 C₃₉H₄₀N₄O₃ 
• 1207613-45-3 C₃₈H₃₈N₄O₃ 
• 1207613-44-2 C₃₇H₃₆N₄O₃ 
• 1207613-43-1 C₃₆H₃₄N₄O₃ 
• 111866-61-6 Acrylic acid 6-[4-(4-phenylazo-phenylazo)-phenoxy]-hexyl ester 
• 111916-17-7 Pent-4-enoic acid 4-(4-phenylazo-phenylazo)-phenyl ester 
• 111916-18-8 Undec-10-enoic acid 4-(4-phenylazo-phenylazo)-phenyl ester 
• 111866-55-8 Acrylic acid 4-(4-phenylazo-phenylazo)-phenyl ester 
• 111916-16-6 6-[4-(4-Phenylazo-phenylazo)-phenoxy]-hexan-1-ol 
• 123-30-8 4-amino-phenol 
• 62-53-3 aniline 
• 106-50-3 1,4-phenylenediamine 
• 101038-75-9 4-(4-Acetyloxyphenylazo)azobenzen 

Relevant articles and documents

Preparation and characterization of chromophor group containing cyclotriphosphazenes: III bis-azo chromophor carrying some cyclotriphosphazenes

Some new substituted cyclotriphosphazenes were prepared by reaction of hexachlorocyclotriphosphazene and phenylazophenylazophenol compounds such as p-[p-phenylazo-phenylazo]phenol, p-[p-(o-chlorophenylazo)phenylazo]phenol, p-[p-(p-chlorophenylazo)-phenylazo]phenol, p-[p-(p-methylphenylazo)phenylazo]phenol, and tetrazobenzene-β-naphtol. They are characterized by UV-Vis, FT IR, elemental analysis, and TG, DTG, and DTA.

SYNTHESIS AND PROPERTIES OF SIDE-CHAIN LIQUID CRYSTALLINE POLYMERS CONTAINING AZOBENZENE MESOGENS

The synthesis and phase behaviour of side-chain liquid crystalline polymers containing the trans-azobenzene mesogenic unit are described.Depending on the structure of the repeating unit, the polymers give rise to nematic mesophases and/or different smectic modifications.The liquid crystalline properties of the polymers are discussed with respect to the influence of the polymer backbone nature, chemical constitution and length of the spacer segment, and type and length of the para substituent on the azobenzene moiety.Indications on the UV absorption and photoisomerization behaviour of trans-azobenzene containing polymers are also provided.

UV-VIS ABSORPTION SPECTRA AND ACID-BASE PROPERTIES OF TWO 4--PHENOLS (X = H, NO2)

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