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  • Product Name:   4-Ethylphenol
  • Synonyms:   PEP;P-ETHYLPHENOL;(4-Hydroxyphenyl)ethane;(p-Hydroxyphenyl)ethane;1-Ethyl-4-hydroxybenzene
  • CAS No.:   123-07-9
  • Molecular Formula:   C8H10O
  • Molecular Weight :   122.16
  • Specification :   98%
  • Place of Origin:   China
  • Appearance :   
  • Document :   Download

Description of 4-Ethylphenol

4-Ethylphenol Chemical Properties

Melting point  40-42 °C(lit.)

Boiling point  218-219 °C(lit.)

density  1,011 g/cm3

vapor density  4.2 (vs air)

vapor pressure  0.13 mm Hg ( 20 °C)

refractive index  1.5330


Fp  213 °F

storage temp.  Store below +30°C.

solubility  4.9g/l

form  Crystalline Mass or Crystals

color  White to brownish

Water Solubility  4.9 g/L (25 ºC)

BRN  1363317

Stability: Stable. Incompatible with acid chlorides, acid anhydrides, oxidizing agents.


CAS DataBase Reference 123-07-9(CAS DataBase Reference)

NIST Chemistry Reference Phenol, 4-ethyl-(123-07-9)

EPA Substance Registry System Phenol, 4-ethyl-(123-07-9)

Safety Information

Hazard Codes  Xi,C

Risk Statements  36/37/38-R36/37/38-34

Safety Statements  26-36-S36-S26-45-36/37/39

RIDADR  UN 2430 8/PG 3

WGK Germany  3

RTECS  SL4040000


HazardClass  8

PackingGroup  III

HS Code  29071900

Hazardous Substances Data 123-07-9(Hazardous Substances Data)

4-Ethylphenol Usage And Synthesis

Description 4-Ethylphenol, often abbreviated to 4-EP, is a phenolic compound with the formula C8H10O. It is colorless or white needles with a powerful woody-phenolic and yet somewhat sweet odor and  tends to be yellow on exposure to light. It is slightly solouble in water, solouble in alcohol, ether and benzene and carbon disulfide. It is found in arabica coffee and can be produced in wine and beer by the spoilage yeast Brettanomyces. It is the starting material for the production of 4-vinylphenol and of various antioxidants and can also be used as an intermediate for pharmaceuticals and dyes.

References 1. https://en.wikipedia.org/wiki/4-Ethylphenol
2. http://www.hmdb.ca/metabolites/HMDB29306
3. https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/f?./temp/~x8ypqu:1:cpp
4. https://toxnet.nlm.nih.gov/cgi-bin/sis/search2/f?./temp/~x8ypqu:1:manf

Chemical Properties off-white solid

Uses Intermediates of Liquid Crystals

Purification Methods Non-acidic impurities are removed by passing steam through a boiling solution containing 1 mole of the phenol and 1.75 moles of NaOH (as an aqueous 10% solution). The residue is cooled and acidified with 30% (v/v) H2SO4, and the free phenol is extracted into diethyl ether. The extract is washed with water, dried with CaSO4 and the ether is evaporated. The phenol is distilled at 100mm pressure through a Stedman gauze-packed column (p 11). It is further purified by fractional crystallisation by partial freezing, and by zone refining, under N2 [Biddiscombe et al. J Chem Soc 5764 1963]. Alternatively purify it via the benzoate, as for phenol. The 4-nitrophenylbenzoate has m 80o (from EtOH). [Beilstein 6 H 470, 6 III 1663, 5 IV 3020.]

4-Ethylphenol Preparation Products And Raw materials

Raw materials Copper-->Ethylenzene

Preparation Products emulsifier 12^<#^>-->pesticide emulsifier 601^<#^>-->pesticide emulsifier 602^<#^>-->pesticide emulsifier 603^<#^>

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