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HomeProduct name list4-PHENYLAZOPHENOL

4-PHENYLAZOPHENOL

Synonym(s):4-Hydroxyazobenzene;Solvent Yellow 7

  • CAS NO.:1689-82-3
  • Empirical Formula: C12H10N2O
  • Molecular Weight: 198.22
  • MDL number: MFCD00002330
  • EINECS: 216-880-6
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-05-04 17:34:34
4-PHENYLAZOPHENOL Structural

What is 4-PHENYLAZOPHENOL?

Chemical properties

BROWN FINE CRYSTALLINE POWDER

The Uses of 4-PHENYLAZOPHENOL

4-Phenylazophenol is a diaryl-azo derivative with potential use as potential antifungal agents. 4-Phenylazophenol is an azo dye with toxic effects as well as a being a soil contaminant.

The Uses of 4-PHENYLAZOPHENOL

4-Phenylazophenol is a diaryl-azo derivative with potential use as potential antifungal agents. 4-Phenylazophenol is an azo dye with toxic effects as well as a being a soil contaminant. Dyes and metabolites.

Preparation

aniline diazotization, and phenol coupling.

Definition

ChEBI: 4-Hydroxyazobenzene is a member of azobenzenes.

Purification Methods

Crystallise the dye from *benzene or 95% EtOH. [Beilstein 16 II 38, 16 III 86, 16 IV 159.]

Properties and Applications

brilliant yellow. Soluble in ethanol, Acetone and benzene. In concentrated sulfuric acid for yellow orange, dilution after light yellow, In concentrated sodium hydroxide solution for gold. Used to varnish, grease, paraffin wax, resin, soap kind of coloring.

Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%)
Melting point Stable
ISO Good 160 Indissolvable

Properties of 4-PHENYLAZOPHENOL

Melting point: 150-152 °C(lit.)
Boiling point: 230°C/20mmHg(lit.)
Density  1.1447 (rough estimate)
refractive index  1.6330 (estimate)
storage temp.  2-8°C
solubility  DMSO, Methanol
Colour Index  11800
form  Fine Crystalline Powder
pka 8.93±0.13(Predicted)
color  Brown
Water Solubility  Soluble in acetone, ethanol, benzene and ether. Insoluble in water.
BRN  957567
CAS DataBase Reference 1689-82-3(CAS DataBase Reference)
IARC 3 (Vol. 8, Sup 7) 1987
EPA Substance Registry System p-Phenylazophenol (1689-82-3)

Safety information for 4-PHENYLAZOPHENOL

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
ghs
Environment
GHS09
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for 4-PHENYLAZOPHENOL

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