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HomeProduct name list4-Phenylphenol

4-Phenylphenol

Synonym(s):4-Hydroxybiphenyl

  • CAS NO.:92-69-3
  • Empirical Formula: C12H10O
  • Molecular Weight: 170.21
  • MDL number: MFCD00002347
  • EINECS: 202-179-2
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-31 13:32:20
4-Phenylphenol Structural

What is 4-Phenylphenol?

Chemical properties

light tan solid (odour threshold detection limit 0.7 ppm)

The Uses of 4-Phenylphenol

4-Phenylphenol is an intermediate for the production of varnish resins and nonionogenic emulsifiers which are used in the plant protection,polyurethane, and dyeing sectors.

The Uses of 4-Phenylphenol

Fluorescence and phosphorescence quantum yields and fluorescence and phosphorescence lifetimes were obtained for 4-phenylphenol adsorbed on filter paper with either NaCl, NaBr, or NaI at 296 and 93 K. The solid-surface fluorescence and phosphorescence quantum yield values and phosphorescence lifetime values were obtained for p-aminobenzoic acid (PABA) and 4-phenylphenol adsorbed on α-cyclodextrin/NaCl mixtures. 4-Phenylphenol is used as an antioxidant and is a potential EDC.

Definition

ChEBI: 4-Phenylphenol is a member of the class of hydroxybiphenyls that is biphenyl carrying a hydroxy group at position 4.

Preparation

4-phenylphenol synthesis: Add to a 50 ml round-bottom flask, in this order, 122 mg of phenylboronic acid, 414 mg of potassium carbonate, 220 mg of 4-iodophenol, and 10 ml of deionized water. Weigh in a suitably sized container 3 mg Pd on C 10%, add 1 ml of deionized water, and stir gently by hand to form a slurry that is then transferred to the reaction flask.
synthesis of 4-phenylphenol
Couple the flask to a water-jacketed condenser, and reflux the mixture on a hot plate with a magnetic stirrer vigorously for 30 min (until a precipitate appears). After this time, switch off the plate and allow to cool to r.t. Add HCl 2 M to an acidic pH (check with indicator paper). Separate the resulting solid, still containing the catalyst, by filtering with a Hirsch funnel. Wash the solid with 10 ml of water. Then, in a Hirsch funnel, add 10 ml of MeOH, and collect the filtrate in a clean container. Add to the resulting MeOH solution 10 ml of deionized water to obtain the precipitate of the product. Purify by recrystallization, heating in a water bath container with the precipitate and the MeOH/H2O mixture. If necessary, add 1 to 2 ml more of hot MeOH, to finish dissolving the solid. Filter under vacuum with a Hirsch funnel, air dry the solid (can recover the next day). Weigh and calculate the yield.

Synthesis Reference(s)

Tetrahedron, 40, p. 4981, 1984 DOI: 10.1016/S0040-4020(01)91336-5
Tetrahedron Letters, 36, p. 125, 1995 DOI: 10.1016/0040-4039(94)02191-D

General Description

4-Phenylphenol undergoes enzymatic polymerization and polymer developed is characterized by matrix-assisted laser desorption ionization time-of-flight mass spectrometry. It is the intermediate in manufacture of 4-alkyl substituted phenol-formaldehyde resins.

Safety Profile

Acute poison by intraperitonealroute. Questionable carcinogen with experimentalcarcinogenic and tumorigenic data. When heated todecomposition it emits acrid, irritating fumes.

Purification Methods

Crystallise the phenol from aqueous EtOH, *C6H6, and dry it in a vacuum over CaCl2 [Buchanan et al. J Am Chem Soc 108 7703 1986]. [Beilstein 6 IV 4600.]

Properties of 4-Phenylphenol

Melting point: 164-166 °C (lit.)
Boiling point: 321 °C (lit.)
Density  1.0149 (rough estimate)
vapor pressure  0Pa at 25℃
refractive index  1.6188 (estimate)
Flash point: 330 °F
storage temp.  Sealed in dry,Room Temperature
solubility  methanol: soluble50mg/mL, clear, colorless
form  Flakes
pka 9.55(at 25℃)
color  White to slightly yellow
PH 7 (0.7g/l, H2O, 20℃)
Water Solubility  0.7 g/L (20 ºC)
Merck  14,7305
BRN  1907452
Stability: Stable. Incompatible with strong oxidizing agents, strong bases, halogens. Combustible.
CAS DataBase Reference 92-69-3(CAS DataBase Reference)
NIST Chemistry Reference p-Hydroxybiphenyl(92-69-3)
EPA Substance Registry System 4-Phenylphenol (92-69-3)

Safety information for 4-Phenylphenol

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
ghs
Environment
GHS09
GHS Hazard Statements H315:Skin corrosion/irritation
H317:Sensitisation, Skin
H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P272:Contaminated work clothing should not be allowed out of the workplace.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.

Computed Descriptors for 4-Phenylphenol

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