Isostearyl Alcohol EX

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  • Identifiers

    CAS number
    41744-75-6

    Molecular formula
    C18H38O

    SMILES
    CC(C)CCCCCCCCCCCCCCCO

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Waxy 75.39%
    Fatty 55.0%
    Oily 50.07%
    Clean 29.03%
    Floral 27.76%
    Odorless 27.76%
    Fruity 27.52%
    Woody 26.43%
    Sweet 25.92%
    Fresh 25.88%

     

    Flavor
    Waxy 58.87%
    Mild 35.65%
    Fatty 34.51%
    Fat 30.81%
    Alkane 29.53%
    Flower 29.37%
    Oily 28.8%
    Soapy 28.57%
    Wax 27.49%
    Fresh 27.01%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    8.1

    pKa est.
    7.78 (neutral)

    Molecular weight
    270.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    348°C

    Flash point

    • 164.33 ˚C est.

  • Synonyms

    • 16-Methylheptadecan-1-ol
    • 41744-75-6
    • 16-methylheptadecanol
    • 1-Heptadecanol, 16-methyl-
    • W29XHH208C
    • Isostearyl Alcohol EX
    • CHEBI:84911
    • RefChem:1087832
    • 255-529-1
    • Isostearyl alcohol
    • Isooctadecanol
    • 27458-93-1
    • isostearylalcohol
    • Isooctadecyl alcohol
    • 16-METHYL-1-HEPTADECANOL
    • Isostearyl alcohol [USAN]
    • Isostearyl alcohol (USAN)
    • Isooctadecan-1-ol
    • EINECS 248-470-8
    • UNII-Q613OCQ44Y
    • UNII-W29XHH208C
    • Witcohol 66
    • EINECS 255-529-1
    • Jarcol i-18t
    • Witcohol 66 (TN)
    • EC 248-470-8
    • SCHEMBL8716
    • Q613OCQ44Y
    • SCHEMBL2259484
    • CHEMBL2107291
    • DTXSID80892268
    • MFCD00044081
    • Isostearyl alcohol (mixture of isomers)
    • BS-49227
    • FI148879
    • DB-047225
    • NS00001802
    • D04633
    • F71170
    • 458I931
    • Isostearyl Alcohol= Jarcol I-18EX, technical grade
    • Q27158175
    • 27458-93-1

  • Applications

    Isostearyl Alcohol EX is a branched fatty alcohol widely used in cosmetics and personal care as an emollient and thickener, contributing slip, conditioning feel, and product rheology in creams, lotions, and hair-care formulations. It is also an intermediate for the preparation of isostearyl esters, which serve as emollients and fragrance carriers in perfumery and flavor applications. In coatings, inks, and industrial formulations, it can function as a solvent/processing aid and as a rheology modifier, helping blend oil and wax components and improve texture. It may be used as a solvent or carrier in household products and cleaners, aiding formulation of oil-based cleaning agents. In polymer/plastics processing, it is sometimes used as a precursor to specialty esters that act as lubricants or processing aids. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 196.87
    methanol 84.62
    isopropanol 328.63
    water 0.01
    ethyl acetate 685.52
    n-propanol 276.68
    acetone 418.84
    n-butanol 428.61
    acetonitrile 104.94
    DMF 310.6
    toluene 226.83
    isobutanol 309.04
    1,4-dioxane 698.37
    methyl acetate 306.04
    THF 2177.62
    2-butanone 562.21
    n-pentanol 262.92
    sec-butanol 382.27
    n-hexane 298.17
    ethylene glycol 5.54
    NMP 605.6
    cyclohexane 944.3
    DMSO 522.63
    n-butyl acetate 1242.32
    n-octanol 262.4
    chloroform 1100.88
    n-propyl acetate 851.55
    acetic acid 111.66
    dichloromethane 1023.29
    cyclohexanone 1410.59
    propylene glycol 29.71
    isopropyl acetate 781.5
    DMAc 447.61
    2-ethoxyethanol 329.39
    isopentanol 527.44
    n-heptane 522.48
    ethyl formate 226.14
    1,2-dichloroethane 862.62
    n-hexanol 385.65
    2-methoxyethanol 362.01
    isobutyl acetate 647.48
    tetrachloromethane 401.36
    n-pentyl acetate 954.79
    transcutol 1707.29
    n-heptanol 301.15
    ethylbenzene 203.11
    MIBK 724.73
    2-propoxyethanol 533.37
    tert-butanol 648.27
    MTBE 965.87
    2-butoxyethanol 549.38
    propionic acid 160.09
    o-xylene 215.92
    formic acid 9.28
    diethyl ether 849.87
    m-xylene 211.94
    p-xylene 280.27
    chlorobenzene 329.03
    dimethyl carbonate 80.77
    n-octane 138.92
    formamide 20.41
    cyclopentanone 1231.89
    2-pentanone 773.44
    anisole 343.65
    cyclopentyl methyl ether 1251.77
    gamma-butyrolactone 943.89
    1-methoxy-2-propanol 484.75
    pyridine 519.47
    3-pentanone 549.99
    furfural 535.06
    n-dodecane 46.72
    diethylene glycol 131.67
    diisopropyl ether 499.14
    tert-amyl alcohol 583.76
    acetylacetone 632.19
    n-hexadecane 58.56
    acetophenone 383.77
    methyl propionate 396.87
    isopentyl acetate 1210.27
    trichloroethylene 1090.17
    n-nonanol 268.93
    cyclohexanol 729.24
    benzyl alcohol 179.83
    2-ethylhexanol 497.41
    isooctanol 355.87
    dipropyl ether 1601.92
    1,2-dichlorobenzene 388.46
    ethyl lactate 222.71
    propylene carbonate 586.8
    n-methylformamide 89.84
    2-pentanol 439.79
    n-pentane 214.13
    1-propoxy-2-propanol 803.19
    1-methoxy-2-propyl acetate 800.03
    2-(2-methoxypropoxy) propanol 372.79
    mesitylene 200.89
    ε-caprolactone 1112.11
    p-cymene 281.06
    epichlorohydrin 1092.9
    1,1,1-trichloroethane 1084.69
    2-aminoethanol 36.94
    morpholine-4-carbaldehyde 579.15
    sulfolane 1369.31
    2,2,4-trimethylpentane 139.74
    2-methyltetrahydrofuran 1551.91
    n-hexyl acetate 810.06
    isooctane 114.35
    2-(2-butoxyethoxy)ethanol 561.42
    sec-butyl acetate 772.25
    tert-butyl acetate 1073.12
    decalin 219.3
    glycerin 43.4
    diglyme 1273.59
    acrylic acid 72.78
    isopropyl myristate 360.57
    n-butyric acid 595.92
    acetyl acetate 327.87
    di(2-ethylhexyl) phthalate 178.92
    ethyl propionate 695.44
    nitromethane 228.24
    1,2-diethoxyethane 1185.29
    benzonitrile 249.38
    trioctyl phosphate 175.84
    1-bromopropane 846.1
    gamma-valerolactone 1270.54
    n-decanol 178.67
    triethyl phosphate 419.81
    4-methyl-2-pentanol 337.05
    propionitrile 207.56
    vinylene carbonate 325.98
    1,1,2-trichlorotrifluoroethane 581.42
    DMS 280.35
    cumene 181.01
    2-octanol 273.18
    2-hexanone 733.39
    octyl acetate 367.32
    limonene 594.82
    1,2-dimethoxyethane 992.26
    ethyl orthosilicate 487.33
    tributyl phosphate 240.11
    diacetone alcohol 769.29
    N,N-dimethylaniline 269.74
    acrylonitrile 136.71
    aniline 209.19
    1,3-propanediol 133.42
    bromobenzene 399.59
    dibromomethane 843.23
    1,1,2,2-tetrachloroethane 1267.09
    2-methyl-cyclohexyl acetate 755.06
    tetrabutyl urea 321.74
    diisobutyl methanol 463.41
    2-phenylethanol 241.43
    styrene 208.7
    dioctyl adipate 450.49
    dimethyl sulfate 180.48
    ethyl butyrate 1229.68
    methyl lactate 124.42
    butyl lactate 485.76
    diethyl carbonate 545.69
    propanediol butyl ether 301.39
    triethyl orthoformate 960.77
    p-tert-butyltoluene 278.49
    methyl 4-tert-butylbenzoate 477.45
    morpholine 1048.2
    tert-butylamine 571.86
    n-dodecanol 130.28
    dimethoxymethane 371.93
    ethylene carbonate 394.49
    cyrene 315.82
    2-ethoxyethyl acetate 736.11
    2-ethylhexyl acetate 1052.74
    1,2,4-trichlorobenzene 431.83
    4-methylpyridine 504.37
    dibutyl ether 1079.37
    2,6-dimethyl-4-heptanol 463.41
    DEF 721.61
    dimethyl isosorbide 814.76
    tetrachloroethylene 780.55
    eugenol 305.05
    triacetin 607.01
    span 80 394.14
    1,4-butanediol 44.5
    1,1-dichloroethane 841.96
    2-methyl-1-pentanol 323.91
    methyl formate 64.94
    2-methyl-1-butanol 415.79
    n-decane 125.56
    butyronitrile 394.97
    3,7-dimethyl-1-octanol 388.1
    1-chlorooctane 396.05
    1-chlorotetradecane 119.97
    n-nonane 142.75
    undecane 70.34
    tert-butylcyclohexane 186.52
    cyclooctane 259.34
    cyclopentanol 587.6
    tetrahydropyran 1740.19
    tert-amyl methyl ether 763.42
    2,5,8-trioxanonane 669.79
    1-hexene 492.43
    2-isopropoxyethanol 359.23
    2,2,2-trifluoroethanol 43.29
    methyl butyrate 917.1

    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