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Eugenol

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Eugenol is a widely used ingredient in cosmetics, personal care, and skincare formulations. Depending on its function, it may serve as a moisturizer, preservative, emulsifier, or active ingredient to enhance the overall effectiveness and performance of a product.

Eugenol (Wikipedia)

Eugenol /ˈjuːdʒɪnɒl/ is an allyl chain-substituted guaiacol, a member of the allylbenzene class of chemical compounds. It is a colorless to pale yellow, aromatic oily liquid extracted from certain essential oils especially from clove, nutmeg, cinnamon, basil and bay leaf. It is present in concentrations of 80–90% in clove bud oil and at 82–88% in clove leaf oil. Eugenol has a pleasant, spicy, clove-like scent. The name is derived from Eugenia caryophyllata, the former Linnean nomenclature term for cloves. The currently accepted name is Syzygium aromaticum.

Eugenol
Skeletal formula of eugenol
Ball-and-stick model of the eugenol molecule
Names
Preferred IUPAC name
2-Methoxy-4-(prop-2-en-1-yl)phenol
Other names
  • 4-Allyl-2-methoxyphenol
  • 2-Methoxy-4-(2-propenyl)phenol
  • Eugenic acid
  • Caryophyllic acid
  • 1-Allyl-3-methoxy-4-hydroxybenzene
  • Allylguaiacol
  • 2-Methoxy-4-allylphenol
  • 4-Allylcatechol-2-methyl ether
Identifiers
3D model (JSmol)
1366759
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.002.355 Edit this at Wikidata
EC Number
  • 202-589-1
KEGG
UNII
  • InChI=1S/C10H12O2/c1-3-4-8-5-6-9(11)10(7-8)12-2/h3,5-7,11H,1,4H2,2H3 checkY
    Key: RRAFCDWBNXTKKO-UHFFFAOYSA-N checkY
  • InChI=1/C10H12O2/c1-3-4-8-5-6-9(11)10(7-8)12-2/h3,5-7,11H,1,4H2,2H3
    Key: RRAFCDWBNXTKKO-UHFFFAOYAJ
  • Oc1ccc(cc1OC)CC=C
Properties
C10H12O2
Molar mass 164.204 g·mol−1
Density 1.06 g/cm3
Melting point −7.5 °C (18.5 °F; 265.6 K)
Boiling point 254 °C (489 °F; 527 K)
Acidity (pKa) 10.19 at 25 °C
−1.021×10−4 cm3/mol
Viscosity
  • 9.12 mPa·s at 20 °C
  • 5.99 mPa·s at 30 °C
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
1
0
Flash point 104 °C (219 °F; 377 K)
Related compounds
Related compounds
 2-Phenethyl propionate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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