15-Hexadecenoic acid

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  • Identifiers

    CAS number
    4675-57-4

    Molecular formula
    C16H30O2

    SMILES
    C=CCCCCCCCCCCCCCC(=O)O

    Safety labels

  • Odor profile

    Fragrance
    Fatty 83.67%
    Waxy 72.78%
    Oily 46.46%
    Citrus 34.52%
    Dairy 34.19%
    Sweet 32.47%
    Creamy 32.19%
    Soapy 30.56%
    Milky 29.1%
    Meaty 27.44%

     

    Flavor
    Fatty 58.34%
    Waxy 56.28%
    Fat 35.75%
    Soapy 31.25%
    Mild 29.52%
    Coconut 28.76%
    Oily 28.39%
    Creamy 27.28%
    Faint 27.23%
    Sweet 25.79%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    6.6

    pKa est.
    6.63 (neutral)

    Molecular weight
    254.41 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    340°C

    Flash point

    • 179.24 ˚C est.

  • Synonyms

    • 15-Hexadecenoic acid
    • 4675-57-4
    • DTXSID70470514
    • RefChem:236607
    • DTXCID00421332
    • Hexadec-15-enoic Acid
    • SCHEMBL842309
    • G67522
    • 4675-57-4

  • Applications

    15-Hexadecenoic acid (CAS 4675-57-4) is used as an oleochemical feedstock and intermediate for the synthesis of esters and derivatives. In cosmetics and personal care, it serves as a fatty‑acid building block for emollient esters and other formulation ingredients. In fragrance applications, it can function as a fragrance intermediate or odorant precursor. In coatings, inks, and polymers, it serves as a raw material for alkyd resins and other polymer modifiers and as a precursor for lubricants, plasticizers, and oleochemical surfactants. It may also be evaluated for use in industrial manufacturing as a sustainable chemical building block, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 134.51
    methanol 101.34
    isopropanol 163.24
    water 0.01
    ethyl acetate 137.47
    n-propanol 128.01
    acetone 120.51
    n-butanol 147.19
    acetonitrile 31.05
    DMF 280.33
    toluene 59.39
    isobutanol 128.85
    1,4-dioxane 183.33
    methyl acetate 77.05
    THF 762.82
    2-butanone 160.26
    n-pentanol 143.07
    sec-butanol 147.46
    n-hexane 63.02
    ethylene glycol 6.05
    NMP 429.16
    cyclohexane 85.57
    DMSO 478.97
    n-butyl acetate 252.67
    n-octanol 88.01
    chloroform 246.88
    n-propyl acetate 218.23
    acetic acid 54.67
    dichloromethane 240.69
    cyclohexanone 427.37
    propylene glycol 32.01
    isopropyl acetate 171.42
    DMAc 354.97
    2-ethoxyethanol 200.37
    isopentanol 194.54
    n-heptane 41.01
    ethyl formate 66.73
    1,2-dichloroethane 236.61
    n-hexanol 145.83
    2-methoxyethanol 226.99
    isobutyl acetate 169.29
    tetrachloromethane 62.23
    n-pentyl acetate 245.9
    transcutol 837.07
    n-heptanol 91.39
    ethylbenzene 65.51
    MIBK 228.56
    2-propoxyethanol 239.39
    tert-butanol 251.66
    MTBE 258.73
    2-butoxyethanol 200.39
    propionic acid 70.28
    o-xylene 64.81
    formic acid 11.83
    diethyl ether 171.69
    m-xylene 69.18
    p-xylene 81.97
    chlorobenzene 89.87
    dimethyl carbonate 31.43
    n-octane 16.13
    formamide 22.82
    cyclopentanone 448.82
    2-pentanone 219.46
    anisole 128.13
    cyclopentyl methyl ether 362.68
    gamma-butyrolactone 364.05
    1-methoxy-2-propanol 274.85
    pyridine 154.94
    3-pentanone 132.07
    furfural 249.02
    n-dodecane 9.07
    diethylene glycol 95.88
    diisopropyl ether 99.36
    tert-amyl alcohol 230.67
    acetylacetone 212.75
    n-hexadecane 10.92
    acetophenone 154.18
    methyl propionate 107.52
    isopentyl acetate 264.14
    trichloroethylene 328.21
    n-nonanol 89.4
    cyclohexanol 199.54
    benzyl alcohol 91.58
    2-ethylhexanol 128.44
    isooctanol 103.85
    dipropyl ether 226.83
    1,2-dichlorobenzene 114.79
    ethyl lactate 86.68
    propylene carbonate 197.37
    n-methylformamide 70.32
    2-pentanol 146.52
    n-pentane 32.48
    1-propoxy-2-propanol 260.55
    1-methoxy-2-propyl acetate 229.38
    2-(2-methoxypropoxy) propanol 183.81
    mesitylene 59.64
    ε-caprolactone 326.78
    p-cymene 55.97
    epichlorohydrin 409.9
    1,1,1-trichloroethane 210.89
    2-aminoethanol 38.34
    morpholine-4-carbaldehyde 311.11
    sulfolane 704.52
    2,2,4-trimethylpentane 26.38
    2-methyltetrahydrofuran 458.43
    n-hexyl acetate 256.31
    isooctane 21.71
    2-(2-butoxyethoxy)ethanol 272.81
    sec-butyl acetate 186.31
    tert-butyl acetate 267.57
    decalin 44.41
    glycerin 44.93
    diglyme 492.53
    acrylic acid 37.52
    isopropyl myristate 101.1
    n-butyric acid 196.66
    acetyl acetate 70.63
    di(2-ethylhexyl) phthalate 75.13
    ethyl propionate 161.99
    nitromethane 97.01
    1,2-diethoxyethane 323.93
    benzonitrile 90.38
    trioctyl phosphate 64.04
    1-bromopropane 184.1
    gamma-valerolactone 509.74
    n-decanol 62.23
    triethyl phosphate 102.01
    4-methyl-2-pentanol 114.92
    propionitrile 54.17
    vinylene carbonate 118.46
    1,1,2-trichlorotrifluoroethane 251.98
    DMS 103.1
    cumene 59.0
    2-octanol 80.37
    2-hexanone 245.99
    octyl acetate 113.75
    limonene 108.34
    1,2-dimethoxyethane 389.64
    ethyl orthosilicate 109.79
    tributyl phosphate 84.35
    diacetone alcohol 288.19
    N,N-dimethylaniline 117.19
    acrylonitrile 49.8
    aniline 73.87
    1,3-propanediol 89.98
    bromobenzene 100.84
    dibromomethane 190.46
    1,1,2,2-tetrachloroethane 389.99
    2-methyl-cyclohexyl acetate 204.57
    tetrabutyl urea 123.89
    diisobutyl methanol 98.7
    2-phenylethanol 100.2
    styrene 68.67
    dioctyl adipate 146.41
    dimethyl sulfate 88.7
    ethyl butyrate 212.08
    methyl lactate 69.74
    butyl lactate 169.42
    diethyl carbonate 101.41
    propanediol butyl ether 173.57
    triethyl orthoformate 176.29
    p-tert-butyltoluene 58.92
    methyl 4-tert-butylbenzoate 178.59
    morpholine 337.34
    tert-butylamine 179.07
    n-dodecanol 44.7
    dimethoxymethane 184.18
    ethylene carbonate 114.1
    cyrene 175.82
    2-ethoxyethyl acetate 219.19
    2-ethylhexyl acetate 212.81
    1,2,4-trichlorobenzene 136.01
    4-methylpyridine 180.28
    dibutyl ether 218.61
    2,6-dimethyl-4-heptanol 98.7
    DEF 253.65
    dimethyl isosorbide 381.83
    tetrachloroethylene 228.16
    eugenol 147.4
    triacetin 212.28
    span 80 181.68
    1,4-butanediol 35.51
    1,1-dichloroethane 179.08
    2-methyl-1-pentanol 154.91
    methyl formate 38.38
    2-methyl-1-butanol 154.57
    n-decane 20.4
    butyronitrile 101.05
    3,7-dimethyl-1-octanol 114.23
    1-chlorooctane 91.19
    1-chlorotetradecane 29.63
    n-nonane 20.58
    undecane 12.76
    tert-butylcyclohexane 40.16
    cyclooctane 26.71
    cyclopentanol 205.66
    tetrahydropyran 373.33
    tert-amyl methyl ether 216.89
    2,5,8-trioxanonane 310.46
    1-hexene 140.8
    2-isopropoxyethanol 188.02
    2,2,2-trifluoroethanol 18.77
    methyl butyrate 242.34

    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