Benzoic acid, octadecyl ester

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  • Identifiers

    CAS number
    10578-34-4

    Molecular formula
    C25H42O2

    SMILES
    CCCCCCCCCCCCCCCCCCOC(=O)C1=CC=CC=C1

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Waxy 70.39%
    Fatty 60.7%
    Oily 50.33%
    Balsamic 34.32%
    Sweet 30.15%
    Odorless 28.75%
    Fruity 21.46%
    Creamy 21.12%
    Clean 20.47%
    Floral 19.24%

     

    Flavor
    Waxy 52.74%
    Oily 37.66%
    Mild 37.59%
    Fatty 36.08%
    Balsam 29.71%
    Faint 26.77%
    Bland 25.57%
    Soapy 23.62%
    Slightly waxy 23.57%
    Fat 23.26%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    11.1

    pKa est.
    7.2 (neutral)

    Molecular weight
    374.6 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    462°C

    Flash point

    • 202.06 ˚C est.

  • Synonyms

    • Octadecyl benzoate
    • Stearyl benzoate
    • Benzoic acid, octadecyl ester
    • 10578-34-4
    • Benzoic acid, stearyl ester
    • 7HD51EXK79
    • EINECS 234-169-9
    • DTXSID1065130
    • RefChem:566149
    • STEARYL BENZOATE [INCI]
    • DTXCID7032973
    • UNII-7HD51EXK79
    • Octadecylbenzoate
    • SCHEMBL246510
    • SCHEMBL3221420
    • SCHEMBL4623124
    • MFCD34812452
    • NS00014122
    • F71698
    • Q27268297
    • 10578-34-4

  • Applications

    Benzoic acid, octadecyl ester (CAS 10578-34-4) is a lipophilic, high-molecular-weight ester primarily used as an emollient and conditioning agent in cosmetics and personal care formulations (creams, lotions, lip balms, and color cosmetics). It can serve as a lipophilic solvent or carrier for fragrance oils and other actives in perfumery and cosmetic blends. In industrial contexts, it can function as a plasticizer and processing aid for polymers, coatings, and adhesives to improve flexibility and gloss. It may also be used as an intermediate or building block in the synthesis of specialty esters for chemical manufacturing. Its use is formulation-dependent and subject to local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 173.47
    methanol 184.93
    isopropanol 214.9
    water 1.39
    ethyl acetate 1219.38
    n-propanol 252.68
    acetone 1038.71
    n-butanol 282.52
    acetonitrile 506.8
    DMF 1235.98
    toluene 489.66
    isobutanol 253.77
    1,4-dioxane 1040.54
    methyl acetate 869.5
    THF 2218.33
    2-butanone 1092.48
    n-pentanol 187.47
    sec-butanol 292.07
    n-hexane 118.75
    ethylene glycol 16.36
    NMP 2286.68
    cyclohexane 687.13
    DMSO 1090.57
    n-butyl acetate 1000.84
    n-octanol 216.24
    chloroform 3392.05
    n-propyl acetate 1182.73
    acetic acid 382.73
    dichloromethane 4230.07
    cyclohexanone 2896.96
    propylene glycol 40.6
    isopropyl acetate 997.15
    DMAc 1881.28
    2-ethoxyethanol 364.04
    isopentanol 330.18
    n-heptane 111.74
    ethyl formate 572.92
    1,2-dichloroethane 2965.61
    n-hexanol 155.09
    2-methoxyethanol 400.86
    isobutyl acetate 718.4
    tetrachloromethane 935.29
    n-pentyl acetate 1488.11
    transcutol 1391.96
    n-heptanol 214.76
    ethylbenzene 292.02
    MIBK 839.92
    2-propoxyethanol 320.33
    tert-butanol 340.11
    MTBE 688.17
    2-butoxyethanol 503.99
    propionic acid 443.31
    o-xylene 385.49
    formic acid 83.71
    diethyl ether 681.1
    m-xylene 331.56
    p-xylene 476.73
    chlorobenzene 1039.42
    dimethyl carbonate 372.36
    n-octane 65.76
    formamide 252.49
    cyclopentanone 2607.92
    2-pentanone 1109.36
    anisole 607.29
    cyclopentyl methyl ether 1277.82
    gamma-butyrolactone 2504.64
    1-methoxy-2-propanol 401.45
    pyridine 1472.72
    3-pentanone 998.68
    furfural 1406.29
    n-dodecane 29.33
    diethylene glycol 114.31
    diisopropyl ether 322.59
    tert-amyl alcohol 407.22
    acetylacetone 1353.63
    n-hexadecane 36.42
    acetophenone 793.35
    methyl propionate 839.71
    isopentyl acetate 891.18
    trichloroethylene 4091.42
    n-nonanol 210.91
    cyclohexanol 706.47
    benzyl alcohol 318.56
    2-ethylhexanol 208.1
    isooctanol 235.85
    dipropyl ether 569.53
    1,2-dichlorobenzene 1202.02
    ethyl lactate 322.36
    propylene carbonate 1444.68
    n-methylformamide 499.28
    2-pentanol 256.55
    n-pentane 102.96
    1-propoxy-2-propanol 383.85
    1-methoxy-2-propyl acetate 736.93
    2-(2-methoxypropoxy) propanol 322.89
    mesitylene 250.78
    ε-caprolactone 2310.13
    p-cymene 205.34
    epichlorohydrin 2531.62
    1,1,1-trichloroethane 2987.88
    2-aminoethanol 66.15
    morpholine-4-carbaldehyde 1387.07
    sulfolane 3017.68
    2,2,4-trimethylpentane 78.52
    2-methyltetrahydrofuran 1819.39
    n-hexyl acetate 1065.99
    isooctane 42.61
    2-(2-butoxyethoxy)ethanol 467.08
    sec-butyl acetate 847.06
    tert-butyl acetate 1131.14
    decalin 150.01
    glycerin 61.47
    diglyme 1481.92
    acrylic acid 308.85
    isopropyl myristate 314.1
    n-butyric acid 884.18
    acetyl acetate 795.86
    di(2-ethylhexyl) phthalate 208.46
    ethyl propionate 1015.84
    nitromethane 1132.03
    1,2-diethoxyethane 1038.78
    benzonitrile 578.86
    trioctyl phosphate 181.25
    1-bromopropane 1485.32
    gamma-valerolactone 2766.52
    n-decanol 129.5
    triethyl phosphate 412.87
    4-methyl-2-pentanol 177.86
    propionitrile 523.03
    vinylene carbonate 1129.74
    1,1,2-trichlorotrifluoroethane 1189.38
    DMS 669.07
    cumene 203.83
    2-octanol 232.59
    2-hexanone 874.07
    octyl acetate 396.53
    limonene 392.79
    1,2-dimethoxyethane 1147.95
    ethyl orthosilicate 415.34
    tributyl phosphate 258.84
    diacetone alcohol 736.16
    N,N-dimethylaniline 400.13
    acrylonitrile 502.75
    aniline 463.63
    1,3-propanediol 147.08
    bromobenzene 1246.02
    dibromomethane 2546.02
    1,1,2,2-tetrachloroethane 3670.43
    2-methyl-cyclohexyl acetate 639.33
    tetrabutyl urea 403.71
    diisobutyl methanol 174.37
    2-phenylethanol 247.87
    styrene 387.33
    dioctyl adipate 490.32
    dimethyl sulfate 705.34
    ethyl butyrate 975.37
    methyl lactate 267.81
    butyl lactate 635.87
    diethyl carbonate 551.55
    propanediol butyl ether 295.04
    triethyl orthoformate 654.61
    p-tert-butyltoluene 183.92
    methyl 4-tert-butylbenzoate 697.3
    morpholine 1307.39
    tert-butylamine 261.5
    n-dodecanol 91.96
    dimethoxymethane 726.98
    ethylene carbonate 1163.94
    cyrene 410.03
    2-ethoxyethyl acetate 1249.01
    2-ethylhexyl acetate 791.71
    1,2,4-trichlorobenzene 1312.48
    4-methylpyridine 1304.33
    dibutyl ether 683.55
    2,6-dimethyl-4-heptanol 174.37
    DEF 1454.46
    dimethyl isosorbide 841.17
    tetrachloroethylene 2422.48
    eugenol 474.38
    triacetin 919.92
    span 80 342.01
    1,4-butanediol 65.71
    1,1-dichloroethane 2373.83
    2-methyl-1-pentanol 224.8
    methyl formate 381.96
    2-methyl-1-butanol 318.34
    n-decane 72.9
    butyronitrile 624.75
    3,7-dimethyl-1-octanol 221.97
    1-chlorooctane 354.61
    1-chlorotetradecane 94.94
    n-nonane 76.87
    undecane 41.96
    tert-butylcyclohexane 101.8
    cyclooctane 154.41
    cyclopentanol 657.08
    tetrahydropyran 1742.93
    tert-amyl methyl ether 629.87
    2,5,8-trioxanonane 647.11
    1-hexene 281.06
    2-isopropoxyethanol 336.43
    2,2,2-trifluoroethanol 256.48
    methyl butyrate 1433.19

    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