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

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

1. Environmental Testing:
p-[[p-(phenylazo)phenyl]azo]phenol is used as an analytical agent for analyzing Azo compounds in samples using liquid Chromatograph mass spectrometer. This application is particularly useful in environmental testing to detect and quantify the presence of these compounds in various samples.
2. Textile Industry:
In the textile industry, p-[[p-(phenylazo)phenyl]azo]phenol is used as a dye for polyester fiber and polyamide fiber. Its vibrant color and ability to adhere to these fibers make it a popular choice for dyeing purposes.
3. Fastness Standards:
p-[[p-(phenylazo)phenyl]azo]phenol exhibits good fastness properties, which is essential for dyes used in the textile industry. It has been tested and found to have the following fastness ratings:
Ironing Fastness: AATCC standard 4-5
Light Fastness: AATCC standard 4-5
Perspiration Fastness: AATCC standard 4
Washing Fastness: AATCC standard 4
These fastness properties ensure that the dye remains stable and resistant to fading and staining under various conditions, making it suitable for use in the textile industry.

Preparation

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

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 
• 117070-63-0 4-phenylazo-benzenediazonium; hydroxide 
• 108-95-2 phenol 
• 60-09-3 4-Aminoazobenzene 
• 60-09-3 aniline yellow 

Downstream Products

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

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.

Novel non-symmetric liquid crystal dimer containing bisazobenzene moieties: Synthesis and characterization

A new series of calamitic liquid crystalline non-symmetric dimer containing bisazobenzene moiety and a rather short alkoxybiphenyl linked by flexible spacers (4-propyloxy-[4-biphenyloxyalkyl]-4′-(4-phenylazo)azobenzene has been designed, synthesized and characterized by spectroscopic methods. The transition temperatures and phase behaviors were studied by differential scanning calorimetry (DSC), polarizing optical microscopy (POM) and X-ray diffraction (XRD) analyses. All the synthesized compounds exhibited enantiotropic phase with dimers containing propyl, butyl and octyl flexible alkyl spacers showing SmA and those with pentyl and hexyl spacers exhibited SmA and SmC phases respectively and the stability of the smectic layer depends on the spacer length for the compounds studied. Copyright Taylor & Francis Group, LLC.

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.