4-Ethylphenol

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    123-07-9

    Molecular formula
    C8H10O

    SMILES
    CCC1=CC=C(C=C1)O
    HO

    Safety labels

    Corrosive
    Corrosive

    Retention indicies (RI)

    • DB5: 1165.0
    • Carbowax: 2095.33

  • Odor profile

    phenolic 89.0%
    medicinal 66.46%
    smoky 63.25%
    leathery 53.15%
    spicy 51.2%
    animal 49.13%
    woody 46.24%
    burnt 40.12%
    musty 35.78%
    herbal 30.52%

    Scent© AI

  • Properties

    XLogP3-AA
    2.6 Well soluble in DEP, IAA, BB

    Molecular weight
    122.16 g/mol

    Vapor pressure est.

    • 0.0463 hPa @ 20°C
    • 0.0745 hPa @ 25°C

    Evaporation rate
    Moderately slow

    Melting point expt.

    • 46 °C
    • 44.00 to 46.00 °C. @ 760.00 mm Hg

    Boiling point

    • 217.9 °C
    • 218.00 to 219.00 °C. @ 760.00 mm Hg

    Flash point expt.

    • 104 °C
    • 219 °F (104 °C) (Open Cup)

    Solubility expt.

    • SLIGHTLY SOL IN WATER; SOL IN ALC, ETHER, & BENZENE; SOL IN CARBON DISULFIDE, & ACETONE
    • In water, 4.90X10+3 mg/l at 25 °C
    • slightly soluble in water; soluble in oils
    • very soluble (in ethanol)

  • Synonyms

    • 4-ETHYLPHENOL
    • 123-07-9
    • p-Ethylphenol
    • Phenol, 4-ethyl-
    • Phenol, p-ethyl-
    • 1-Ethyl-4-hydroxybenzene
    • 1-Hydroxy-4-ethylbenzene
    • para-Ethylphenol
    • 4-Hydroxyphenylethane
    • 4-ethyl-phenol
NaN -Infinity

IFRA Standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction

Botanical

Name CAS Botanical Proportion
Osmanthus absolute 68917-05-5 Osmanthus fragrans (Thunb.) Lour., fam. Oleaceae 0.4%
Genet absolute 2 8023-80-1 Spartium junceum L., fam. Leguminosae (Papilionaceae) 0.05%
Mullilam leaf (India) Zanthoxylum rhetsa D.C. syn. Z. limonella (Dennst.) Alston, fam. Rutaceae 0.1%