2-Ethyloctanoic acid

Overview IFRA Request a quote

  • Identifiers

    CAS number
    25234-25-7

    Molecular formula
    C10H20O2

    SMILES
    CCCCCCC(CC)C(=O)O

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Herbal 61.27%
    Fatty 60.67%
    Fruity 59.26%
    Cheesy 53.28%
    Oily 51.26%
    Waxy 49.53%
    Earthy 42.15%
    Woody 41.99%
    Dairy 39.65%
    Sour 39.48%

     

    Flavor
    Waxy 51.38%
    Fatty 49.97%
    Green 44.9%
    Oily 43.72%
    Fruity 42.92%
    Cheese 39.45%
    Fat 28.77%
    Creamy 28.27%
    Mild 27.24%
    Sour 25.99%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    3.7

    pKa est.
    8.01 (weak base)

    Molecular weight
    172.26 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    254°C

    Flash point

    • 117.93 ˚C est.

  • Synonyms

    • 2-Ethyloctanoic acid
    • Octanoic acid, 2-ethyl-
    • EINECS 246-743-6
    • DTXSID40881259
    • RefChem:87002
    • DTXCID801022530
    • 246-743-6
    • 25234-25-7
    • 2-ETHYLOCTANOICACID
    • MFCD02258649
    • Octanoic acid,2-ethyl-
    • 4QX9ZBD73X
    • SCHEMBL59955
    • SCHEMBL297329
    • orb2664762
    • SCHEMBL7780044
    • SCHEMBL27371752
    • SCHEMBL28921579
    • DMUXSGAKEXSNGN-UHFFFAOYSA-N
    • ABA23425
    • AKOS010363955
    • NS00050031
    • EN300-79755
    • F87677
    • Z756391282
    • 25234-25-7

  • Applications

    2-Ethyloctanoic acid (CAS 25234-25-7) is a versatile building block used in several industrial formulations. It is commonly employed as an intermediate in the synthesis of ester-based fragrance and flavor compounds, contributing to aroma profiles for perfumery and flavor applications. It serves as a precursor for plasticizers and lubricants used in polymer and materials formulations, helping to adjust flexibility and processing. The acid can be converted to surfactant derivatives for detergents, cleaners, and personal-care products, and may be used as a cosmetic ingredient or fragrance component in formulated products. In coatings and inks, it can function as an additive or resin modifier for specialty formulations. Use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 9087.26
    methanol 10799.75
    isopropanol 9483.59
    water 0.34
    ethyl acetate 4756.37
    n-propanol 7183.35
    acetone 9960.72
    n-butanol 5406.57
    acetonitrile 3564.67
    DMF 7169.0
    toluene 865.73
    isobutanol 5813.09
    1,4-dioxane 5448.05
    methyl acetate 2909.46
    THF 8582.17
    2-butanone 5257.25
    n-pentanol 3869.97
    sec-butanol 6027.07
    n-hexane 1527.13
    ethylene glycol 665.48
    NMP 4623.53
    cyclohexane 920.28
    DMSO 7846.34
    n-butyl acetate 4114.59
    n-octanol 1090.96
    chloroform 3552.97
    n-propyl acetate 3165.58
    acetic acid 3028.73
    dichloromethane 3327.09
    cyclohexanone 6439.38
    propylene glycol 1313.82
    isopropyl acetate 3309.09
    DMAc 2762.68
    2-ethoxyethanol 3005.64
    isopentanol 4970.63
    n-heptane 307.32
    ethyl formate 2173.06
    1,2-dichloroethane 3743.29
    n-hexanol 3935.14
    2-methoxyethanol 5574.38
    isobutyl acetate 1806.36
    tetrachloromethane 733.79
    n-pentyl acetate 1875.93
    transcutol 7191.08
    n-heptanol 1319.04
    ethylbenzene 614.18
    MIBK 2849.25
    2-propoxyethanol 4279.84
    tert-butanol 9830.72
    MTBE 7320.72
    2-butoxyethanol 1974.05
    propionic acid 2879.81
    o-xylene 611.44
    formic acid 828.73
    diethyl ether 5630.0
    m-xylene 767.59
    p-xylene 796.83
    chlorobenzene 1412.25
    dimethyl carbonate 568.34
    n-octane 125.12
    formamide 1512.13
    cyclopentanone 6650.47
    2-pentanone 5165.73
    anisole 1185.73
    cyclopentyl methyl ether 4684.03
    gamma-butyrolactone 5980.47
    1-methoxy-2-propanol 4646.59
    pyridine 2982.91
    3-pentanone 2648.54
    furfural 2830.64
    n-dodecane 69.02
    diethylene glycol 1977.41
    diisopropyl ether 1875.03
    tert-amyl alcohol 6169.47
    acetylacetone 3317.05
    n-hexadecane 82.53
    acetophenone 992.78
    methyl propionate 2775.39
    isopentyl acetate 3373.44
    trichloroethylene 4748.36
    n-nonanol 886.37
    cyclohexanol 4212.54
    benzyl alcohol 1037.9
    2-ethylhexanol 1929.6
    isooctanol 1120.23
    dipropyl ether 2408.2
    1,2-dichlorobenzene 1227.21
    ethyl lactate 707.16
    propylene carbonate 2538.7
    n-methylformamide 4041.75
    2-pentanol 4163.85
    n-pentane 712.34
    1-propoxy-2-propanol 3344.96
    1-methoxy-2-propyl acetate 2492.59
    2-(2-methoxypropoxy) propanol 1107.63
    mesitylene 549.12
    ε-caprolactone 4539.65
    p-cymene 372.43
    epichlorohydrin 5674.69
    1,1,1-trichloroethane 3007.19
    2-aminoethanol 2317.41
    morpholine-4-carbaldehyde 3519.15
    sulfolane 6100.54
    2,2,4-trimethylpentane 282.81
    2-methyltetrahydrofuran 7332.93
    n-hexyl acetate 2168.81
    isooctane 274.45
    2-(2-butoxyethoxy)ethanol 1942.88
    sec-butyl acetate 2015.5
    tert-butyl acetate 3157.7
    decalin 347.56
    glycerin 1185.12
    diglyme 3273.84
    acrylic acid 1710.11
    isopropyl myristate 611.19
    n-butyric acid 5326.21
    acetyl acetate 1419.25
    di(2-ethylhexyl) phthalate 479.95
    ethyl propionate 2059.73
    nitromethane 4520.65
    1,2-diethoxyethane 3508.62
    benzonitrile 1488.52
    trioctyl phosphate 437.84
    1-bromopropane 2617.71
    gamma-valerolactone 6212.27
    n-decanol 621.49
    triethyl phosphate 458.61
    4-methyl-2-pentanol 1968.85
    propionitrile 3414.32
    vinylene carbonate 1811.08
    1,1,2-trichlorotrifluoroethane 2586.18
    DMS 942.19
    cumene 451.21
    2-octanol 998.59
    2-hexanone 3534.88
    octyl acetate 786.29
    limonene 766.64
    1,2-dimethoxyethane 4989.46
    ethyl orthosilicate 528.32
    tributyl phosphate 581.18
    diacetone alcohol 3034.94
    N,N-dimethylaniline 799.38
    acrylonitrile 2846.71
    aniline 1530.28
    1,3-propanediol 3341.23
    bromobenzene 1369.95
    dibromomethane 2695.91
    1,1,2,2-tetrachloroethane 4475.51
    2-methyl-cyclohexyl acetate 1103.87
    tetrabutyl urea 710.38
    diisobutyl methanol 967.08
    2-phenylethanol 1228.19
    styrene 792.59
    dioctyl adipate 744.4
    dimethyl sulfate 944.12
    ethyl butyrate 1854.83
    methyl lactate 943.02
    butyl lactate 1237.14
    diethyl carbonate 814.59
    propanediol butyl ether 1730.78
    triethyl orthoformate 1047.42
    p-tert-butyltoluene 398.42
    methyl 4-tert-butylbenzoate 880.19
    morpholine 8016.65
    tert-butylamine 6441.02
    n-dodecanol 437.82
    dimethoxymethane 3321.21
    ethylene carbonate 1788.86
    cyrene 869.17
    2-ethoxyethyl acetate 1888.99
    2-ethylhexyl acetate 2299.84
    1,2,4-trichlorobenzene 1263.82
    4-methylpyridine 3255.09
    dibutyl ether 1813.22
    2,6-dimethyl-4-heptanol 967.08
    DEF 4758.42
    dimethyl isosorbide 1827.45
    tetrachloroethylene 2850.61
    eugenol 874.56
    triacetin 1035.82
    span 80 1198.06
    1,4-butanediol 1264.5
    1,1-dichloroethane 4241.94
    2-methyl-1-pentanol 3030.0
    methyl formate 1895.44
    2-methyl-1-butanol 4161.67
    n-decane 144.32
    butyronitrile 4376.81
    3,7-dimethyl-1-octanol 1185.81
    1-chlorooctane 699.59
    1-chlorotetradecane 210.54
    n-nonane 158.55
    undecane 95.82
    tert-butylcyclohexane 395.4
    cyclooctane 225.26
    cyclopentanol 4598.73
    tetrahydropyran 7899.08
    tert-amyl methyl ether 3686.66
    2,5,8-trioxanonane 1732.96
    1-hexene 3670.0
    2-isopropoxyethanol 2354.32
    2,2,2-trifluoroethanol 656.66
    methyl butyrate 3268.94

    Scent© AI

1 4

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