sec-Butyl stearate

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  • Identifiers

    CAS number
    55195-02-3

    Molecular formula
    C22H44O2

    SMILES
    CCCCCCCCCCCCCCCCCC(=O)OC(C)CC

    Safety labels

  • Odor profile

    Fragrance
    Waxy 74.69%
    Fatty 73.12%
    Oily 61.97%
    Creamy 33.99%
    Odorless 29.94%
    Dairy 27.37%
    Sweet 26.6%
    Fruity 25.94%
    Milky 24.38%
    Buttery 21.8%

     

    Flavor
    Waxy 59.33%
    Fatty 48.94%
    Oily 48.83%
    Mild 41.89%
    Fat 35.71%
    Soapy 34.65%
    Coconut 32.17%
    Bland 31.65%
    Faint 29.72%
    Creamy 28.54%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    9.9

    pKa est.
    7.55 (neutral)

    Molecular weight
    340.6 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    383°C

    Flash point

    • 169.21 ˚C est.

  • Synonyms

    • sec-Butyl stearate
    • butan-2-yl octadecanoate
    • 55195-02-3
    • 1-methylpropyl octadecanoate
    • NSC55922
    • EINECS 259-522-4
    • NCIOpen2_007646
    • SCHEMBL668514
    • SCHEMBL11675125
    • SCHEMBL29024900
    • OMARWWFUVFAGSK-UHFFFAOYSA-N
    • DTXSID301309781
    • NSC 55922
    • NSC-55922
    • Octadecanoic acid, 1-methylpropyl ester
    • NS00058125
    • 55195-02-3

  • Applications

    sec-Butyl stearate (CAS 55195-02-3) is widely used as an emollient and solvent in cosmetics and personal care, providing slip and moisturizing properties in creams, lotions, lip products, and color cosmetics. In fragrance applications, it serves as a solvent and carrier for fragrance oils and cosmetic actives, helping to dissolve and disseminate aroma compounds. As a plasticizer and processing aid, it is used to improve flexibility and texture of coatings, inks, and polymer formulations based on vinyl resins or other plastics. It can also function as an intermediate or solvent in industrial formulations for specialty esters or chemical products.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 124.71
    methanol 117.57
    isopropanol 215.39
    water 0.07
    ethyl acetate 1310.78
    n-propanol 230.49
    acetone 743.47
    n-butanol 315.41
    acetonitrile 301.11
    DMF 949.14
    toluene 504.14
    isobutanol 283.52
    1,4-dioxane 1076.21
    methyl acetate 715.73
    THF 2287.85
    2-butanone 1068.87
    n-pentanol 221.55
    sec-butanol 347.26
    n-hexane 194.18
    ethylene glycol 8.09
    NMP 2190.68
    cyclohexane 997.07
    DMSO 841.91
    n-butyl acetate 1418.69
    n-octanol 325.79
    chloroform 2842.77
    n-propyl acetate 1487.68
    acetic acid 261.38
    dichloromethane 3080.17
    cyclohexanone 3258.35
    propylene glycol 30.73
    isopropyl acetate 1238.06
    DMAc 1753.99
    2-ethoxyethanol 387.48
    isopentanol 438.19
    n-heptane 192.15
    ethyl formate 494.77
    1,2-dichloroethane 2112.2
    n-hexanol 227.03
    2-methoxyethanol 387.85
    isobutyl acetate 980.13
    tetrachloromethane 808.5
    n-pentyl acetate 1895.73
    transcutol 1883.48
    n-heptanol 264.01
    ethylbenzene 372.91
    MIBK 1143.81
    2-propoxyethanol 438.49
    tert-butanol 432.23
    MTBE 987.45
    2-butoxyethanol 596.48
    propionic acid 333.11
    o-xylene 468.99
    formic acid 36.65
    diethyl ether 824.05
    m-xylene 385.86
    p-xylene 630.03
    chlorobenzene 1005.52
    dimethyl carbonate 226.71
    n-octane 92.85
    formamide 91.85
    cyclopentanone 2667.28
    2-pentanone 1236.77
    anisole 708.22
    cyclopentyl methyl ether 1670.35
    gamma-butyrolactone 2308.81
    1-methoxy-2-propanol 484.39
    pyridine 1274.08
    3-pentanone 1058.94
    furfural 1324.64
    n-dodecane 45.33
    diethylene glycol 129.58
    diisopropyl ether 465.69
    tert-amyl alcohol 557.18
    acetylacetone 1376.88
    n-hexadecane 59.41
    acetophenone 897.61
    methyl propionate 831.72
    isopentyl acetate 1387.89
    trichloroethylene 3143.99
    n-nonanol 331.74
    cyclohexanol 887.32
    benzyl alcohol 354.34
    2-ethylhexanol 356.65
    isooctanol 316.2
    dipropyl ether 909.45
    1,2-dichlorobenzene 1226.85
    ethyl lactate 360.37
    propylene carbonate 1377.65
    n-methylformamide 308.93
    2-pentanol 332.44
    n-pentane 121.04
    1-propoxy-2-propanol 570.94
    1-methoxy-2-propyl acetate 1028.79
    2-(2-methoxypropoxy) propanol 497.37
    mesitylene 331.37
    ε-caprolactone 2588.28
    p-cymene 322.82
    epichlorohydrin 2214.14
    1,1,1-trichloroethane 2632.42
    2-aminoethanol 43.83
    morpholine-4-carbaldehyde 1474.28
    sulfolane 3000.38
    2,2,4-trimethylpentane 120.04
    2-methyltetrahydrofuran 2227.11
    n-hexyl acetate 1678.26
    isooctane 67.49
    2-(2-butoxyethoxy)ethanol 680.03
    sec-butyl acetate 1175.83
    tert-butyl acetate 1534.16
    decalin 275.69
    glycerin 50.36
    diglyme 1780.07
    acrylic acid 189.66
    isopropyl myristate 539.06
    n-butyric acid 949.96
    acetyl acetate 792.69
    di(2-ethylhexyl) phthalate 340.93
    ethyl propionate 1258.89
    nitromethane 767.31
    1,2-diethoxyethane 1332.53
    benzonitrile 651.8
    trioctyl phosphate 281.6
    1-bromopropane 1377.48
    gamma-valerolactone 2915.72
    n-decanol 206.41
    triethyl phosphate 596.56
    4-methyl-2-pentanol 264.22
    propionitrile 422.03
    vinylene carbonate 982.07
    1,1,2-trichlorotrifluoroethane 1093.21
    DMS 741.8
    cumene 280.97
    2-octanol 312.43
    2-hexanone 1143.87
    octyl acetate 632.47
    limonene 695.68
    1,2-dimethoxyethane 1455.85
    ethyl orthosilicate 596.01
    tributyl phosphate 400.89
    diacetone alcohol 946.55
    N,N-dimethylaniline 512.68
    acrylonitrile 377.67
    aniline 437.67
    1,3-propanediol 125.46
    bromobenzene 1238.95
    dibromomethane 2091.63
    1,1,2,2-tetrachloroethane 3084.84
    2-methyl-cyclohexyl acetate 1036.78
    tetrabutyl urea 610.42
    diisobutyl methanol 293.98
    2-phenylethanol 335.02
    styrene 459.77
    dioctyl adipate 777.87
    dimethyl sulfate 498.78
    ethyl butyrate 1421.14
    methyl lactate 235.26
    butyl lactate 829.25
    diethyl carbonate 710.06
    propanediol butyl ether 409.98
    triethyl orthoformate 1026.49
    p-tert-butyltoluene 290.23
    methyl 4-tert-butylbenzoate 915.38
    morpholine 1437.03
    tert-butylamine 335.76
    n-dodecanol 146.71
    dimethoxymethane 590.44
    ethylene carbonate 1041.91
    cyrene 537.01
    2-ethoxyethyl acetate 1473.51
    2-ethylhexyl acetate 1286.68
    1,2,4-trichlorobenzene 1322.34
    4-methylpyridine 1408.74
    dibutyl ether 1204.3
    2,6-dimethyl-4-heptanol 293.98
    DEF 1641.37
    dimethyl isosorbide 1186.42
    tetrachloroethylene 2021.76
    eugenol 600.49
    triacetin 1292.86
    span 80 563.26
    1,4-butanediol 55.68
    1,1-dichloroethane 1895.29
    2-methyl-1-pentanol 329.88
    methyl formate 217.84
    2-methyl-1-butanol 390.66
    n-decane 116.59
    butyronitrile 610.37
    3,7-dimethyl-1-octanol 382.76
    1-chlorooctane 551.06
    1-chlorotetradecane 157.57
    n-nonane 119.34
    undecane 66.91
    tert-butylcyclohexane 188.11
    cyclooctane 223.78
    cyclopentanol 763.12
    tetrahydropyran 2124.14
    tert-amyl methyl ether 944.03
    2,5,8-trioxanonane 894.98
    1-hexene 410.05
    2-isopropoxyethanol 396.61
    2,2,2-trifluoroethanol 146.99
    methyl butyrate 1769.1

    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