Isocetyl Stearate

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  • Identifiers

    CAS number
    25339-09-7

    Molecular formula
    C34H68O2

    SMILES
    CCCCCCCCCCCCCCCCCC(=O)OCCCCCCCCCCCCCC(C)C

  • Odor profile

    Fragrance
    Waxy 78.21%
    Fatty 60.52%
    Oily 49.47%
    Odorless 33.19%
    Creamy 20.94%
    Sweet 20.62%
    Balsamic 17.76%
    Clean 16.96%
    Fishy 16.31%
    Dairy 16.15%

     

    Flavor
    Waxy 55.24%
    Mild 40.12%
    Fatty 37.08%
    Bland 34.68%
    Oily 34.57%
    Faint 30.2%
    Alkane 29.61%
    Fat 27.31%
    Slightly waxy 25.01%
    Delicate 23.18%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    16.0

    pKa est.
    9.25 (weak base)

    Molecular weight
    508.9 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    535°C

    Flash point

    • 240.85 ˚C est.

  • Synonyms

    • Isocetyl stearate
    • 25339-09-7
    • Isohexadecyl stearate
    • 14-methylpentadecyl octadecanoate
    • Kessco ICS
    • Octadecanoic acid, isohexadecyl ester
    • Standamul 7061
    • Stearic acid, isocetyl ester
    • Stearic acid, isohexadecyl ester
    • EINECS 246-868-6
    • CRODAMOL ICS
    • JEECHEM ICS
    • RITAPHYL ICS
    • DERMOL ICS
    • Octadecanoic acid, isocetyl ester
    • 3RJ7186O9W
    • NIKKOL ICS-R
    • CERAPHYL 494
    • ISOPALMITYL STEARATE
    • AEC ISOCETYL STEARATE
    • DUB SIS 16
    • ISOHEXADECYL ALCOHOL, STEARATE
    • 14-methylpentadecyl stearate
    • UNII-3RJ7186O9W
    • iso-cetyl stearate
    • DSSTox_CID_27179
    • DSSTox_RID_82176
    • DSSTox_GSID_47179
    • isocetyl stearate, AldrichCPR
    • SCHEMBL220653
    • CHEMBL3187837
    • DTXSID4047179
    • ISOCETYL STEARATE [INCI]
    • DTXSID80274207
    • Tox21_303638
    • NCGC00256794-01
    • CAS-25339-09-7
    • NS00013772
    • Q25385096

  • Applications

    Isocetyl Stearate (CAS 25339-09-7) is a high‑molecular‑weight wax ester used primarily as an emollient and texture enhancer in cosmetics and personal care products. It provides slip and a smooth skin feel in formulations for skin and hair care and can serve as a fragrance carrier, helping to solubilize and slow the release of fragrance oils. It is also employed as a lubricating additive to improve gloss and tactile feel in coatings, polishes, and inks, and as a plasticizer/processing aid in certain polymer or wax formulations. In topical formulations, it can function as a carrier for active ingredients due to its lipophilic nature; all uses are subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 4.97
    methanol 5.5
    isopropanol 5.71
    water 0.04
    ethyl acetate 113.78
    n-propanol 9.55
    acetone 48.39
    n-butanol 12.91
    acetonitrile 15.05
    DMF 69.74
    toluene 52.39
    isobutanol 11.82
    1,4-dioxane 102.1
    methyl acetate 59.9
    THF 288.54
    2-butanone 85.66
    n-pentanol 14.39
    sec-butanol 14.9
    n-hexane 15.79
    ethylene glycol 0.65
    NMP 407.33
    cyclohexane 84.47
    DMSO 86.99
    n-butyl acetate 148.53
    n-octanol 38.7
    chloroform 451.12
    n-propyl acetate 143.8
    acetic acid 25.82
    dichloromethane 449.22
    cyclohexanone 380.97
    propylene glycol 2.18
    isopropyl acetate 131.83
    DMAc 237.14
    2-ethoxyethanol 34.64
    isopentanol 21.81
    n-heptane 20.87
    ethyl formate 40.7
    1,2-dichloroethane 242.35
    n-hexanol 15.38
    2-methoxyethanol 26.93
    isobutyl acetate 110.06
    tetrachloromethane 122.06
    n-pentyl acetate 309.36
    transcutol 329.75
    n-heptanol 30.69
    ethylbenzene 48.54
    MIBK 112.46
    2-propoxyethanol 42.38
    tert-butanol 17.18
    MTBE 69.53
    2-butoxyethanol 83.27
    propionic acid 28.27
    o-xylene 61.22
    formic acid 5.07
    diethyl ether 46.12
    m-xylene 46.84
    p-xylene 75.36
    chlorobenzene 122.09
    dimethyl carbonate 33.46
    n-octane 12.32
    formamide 10.66
    cyclopentanone 345.68
    2-pentanone 96.17
    anisole 93.38
    cyclopentyl methyl ether 204.16
    gamma-butyrolactone 315.81
    1-methoxy-2-propanol 36.11
    pyridine 132.43
    3-pentanone 105.34
    furfural 212.4
    n-dodecane 5.9
    diethylene glycol 12.95
    diisopropyl ether 41.53
    tert-amyl alcohol 36.27
    acetylacetone 173.38
    n-hexadecane 7.5
    acetophenone 149.78
    methyl propionate 80.49
    isopentyl acetate 174.77
    trichloroethylene 488.31
    n-nonanol 44.34
    cyclohexanol 58.88
    benzyl alcohol 37.0
    2-ethylhexanol 33.68
    isooctanol 41.74
    dipropyl ether 104.33
    1,2-dichlorobenzene 191.82
    ethyl lactate 48.6
    propylene carbonate 221.15
    n-methylformamide 22.76
    2-pentanol 15.31
    n-pentane 8.4
    1-propoxy-2-propanol 65.31
    1-methoxy-2-propyl acetate 164.64
    2-(2-methoxypropoxy) propanol 110.28
    mesitylene 44.98
    ε-caprolactone 366.04
    p-cymene 54.29
    epichlorohydrin 319.78
    1,1,1-trichloroethane 369.89
    2-aminoethanol 2.95
    morpholine-4-carbaldehyde 196.18
    sulfolane 606.73
    2,2,4-trimethylpentane 16.87
    2-methyltetrahydrofuran 254.95
    n-hexyl acetate 257.63
    isooctane 7.88
    2-(2-butoxyethoxy)ethanol 120.38
    sec-butyl acetate 142.7
    tert-butyl acetate 222.09
    decalin 34.93
    glycerin 5.15
    diglyme 361.53
    acrylic acid 20.44
    isopropyl myristate 84.83
    n-butyric acid 76.7
    acetyl acetate 102.62
    di(2-ethylhexyl) phthalate 63.05
    ethyl propionate 145.35
    nitromethane 78.37
    1,2-diethoxyethane 187.88
    benzonitrile 61.71
    trioctyl phosphate 44.88
    1-bromopropane 130.01
    gamma-valerolactone 437.04
    n-decanol 25.98
    triethyl phosphate 131.35
    4-methyl-2-pentanol 18.16
    propionitrile 22.47
    vinylene carbonate 151.07
    1,1,2-trichlorotrifluoroethane 200.39
    DMS 115.39
    cumene 40.95
    2-octanol 37.46
    2-hexanone 119.37
    octyl acetate 94.04
    limonene 100.37
    1,2-dimethoxyethane 139.55
    ethyl orthosilicate 131.59
    tributyl phosphate 68.37
    diacetone alcohol 130.27
    N,N-dimethylaniline 80.51
    acrylonitrile 22.8
    aniline 40.5
    1,3-propanediol 7.31
    bromobenzene 173.76
    dibromomethane 261.97
    1,1,2,2-tetrachloroethane 495.12
    2-methyl-cyclohexyl acetate 197.6
    tetrabutyl urea 107.84
    diisobutyl methanol 36.93
    2-phenylethanol 37.95
    styrene 53.61
    dioctyl adipate 152.41
    dimethyl sulfate 106.34
    ethyl butyrate 202.27
    methyl lactate 31.44
    butyl lactate 147.82
    diethyl carbonate 111.88
    propanediol butyl ether 58.6
    triethyl orthoformate 192.82
    p-tert-butyltoluene 50.08
    methyl 4-tert-butylbenzoate 230.14
    morpholine 117.85
    tert-butylamine 15.47
    n-dodecanol 17.5
    dimethoxymethane 55.21
    ethylene carbonate 139.09
    cyrene 125.23
    2-ethoxyethyl acetate 278.91
    2-ethylhexyl acetate 173.14
    1,2,4-trichlorobenzene 243.69
    4-methylpyridine 135.24
    dibutyl ether 147.44
    2,6-dimethyl-4-heptanol 36.93
    DEF 151.92
    dimethyl isosorbide 330.1
    tetrachloroethylene 290.66
    eugenol 130.35
    triacetin 300.17
    span 80 108.68
    1,4-butanediol 4.17
    1,1-dichloroethane 184.21
    2-methyl-1-pentanol 26.35
    methyl formate 20.81
    2-methyl-1-butanol 22.43
    n-decane 15.96
    butyronitrile 29.4
    3,7-dimethyl-1-octanol 50.81
    1-chlorooctane 74.05
    1-chlorotetradecane 20.72
    n-nonane 15.5
    undecane 8.87
    tert-butylcyclohexane 23.6
    cyclooctane 27.01
    cyclopentanol 49.3
    tetrahydropyran 180.56
    tert-amyl methyl ether 97.54
    2,5,8-trioxanonane 182.89
    1-hexene 30.31
    2-isopropoxyethanol 38.67
    2,2,2-trifluoroethanol 21.54
    methyl butyrate 193.76

    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