2-Octadecanone

Overview IFRA Request a quote

  • Identifiers

    CAS number
    7373-13-9

    Molecular formula
    C18H36O

    SMILES
    CCCCCCCCCCCCCCCCC(=O)C

    Safety labels

  • Odor profile

    Fragrance
    Fatty 67.93%
    Waxy 65.89%
    Oily 52.66%
    Fruity 49.41%
    Dairy 37.44%
    Creamy 33.92%
    Floral 32.08%
    Orris 31.16%
    Milky 29.99%
    Coconut 28.14%

     

    Flavor
    Waxy 61.42%
    Fatty 50.17%
    Fat 39.66%
    Fresh 36.13%
    Coconut 35.65%
    Oily 34.32%
    Soapy 34.0%
    Mild 32.53%
    Floral 31.7%
    Orris 31.27%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    7.9

    pKa est.
    7.79 (neutral)

    Molecular weight
    268.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    344°C

    Flash point

    • 145.93 ˚C est.

  • Synonyms

    • 2-Octadecanone
    • octadecan-2-one
    • Methyl n-hexadecyl ketone
    • DTXSID30224055
    • NSC 101084
    • RefChem:88846
    • DTXCID30146546
    • PJLJQAWUAPNCJC-UHFFFAOYSA-N
    • 7373-13-9
    • Hexadecyl methyl ketone
    • NSC101084
    • SCHEMBL29092
    • SCHEMBL536800
    • SCHEMBL3475165
    • SCHEMBL8371729
    • SCHEMBL8668253
    • CHEMBL3273576
    • 2-Octadecanone, >=97.0% (GC)
    • NSC-101084
    • 7373-13-9

  • Applications

    2-Octadecanone, CAS 7373-13-9, is primarily used as a fragrance ingredient and fixative in perfumery, helping to create and stabilize long-lasting aroma in formulations. It is also used in cosmetics and personal care products as a fragrance component or aroma modifier in creams, lotions, shampoos, and other personal care items. In household cleaning products, it can serve as a fragrance additive to improve scent profiles in detergents and cleaners. In industrial manufacturing, 2-Octadecanone is commonly considered an intermediate or useful component for the synthesis of esters and other specialty fragrance-related compounds used in formulating fragrances and related chemicals.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 128.37
    methanol 91.21
    isopropanol 231.2
    water 0.01
    ethyl acetate 933.24
    n-propanol 210.68
    acetone 482.08
    n-butanol 291.15
    acetonitrile 186.31
    DMF 536.99
    toluene 351.51
    isobutanol 242.56
    1,4-dioxane 828.0
    methyl acetate 454.3
    THF 1824.79
    2-butanone 713.32
    n-pentanol 204.88
    sec-butanol 293.66
    n-hexane 288.93
    ethylene glycol 6.44
    NMP 1043.43
    cyclohexane 959.96
    DMSO 575.66
    n-butyl acetate 1211.19
    n-octanol 232.4
    chloroform 1802.98
    n-propyl acetate 1033.01
    acetic acid 139.94
    dichloromethane 1657.17
    cyclohexanone 1911.04
    propylene glycol 28.65
    isopropyl acetate 912.54
    DMAc 774.31
    2-ethoxyethanol 297.6
    isopentanol 382.58
    n-heptane 356.74
    ethyl formate 305.1
    1,2-dichloroethane 1250.31
    n-hexanol 281.48
    2-methoxyethanol 337.12
    isobutyl acetate 719.16
    tetrachloromethane 525.09
    n-pentyl acetate 1107.56
    transcutol 1771.48
    n-heptanol 213.69
    ethylbenzene 316.95
    MIBK 772.6
    2-propoxyethanol 435.63
    tert-butanol 452.72
    MTBE 864.06
    2-butoxyethanol 430.06
    propionic acid 207.35
    o-xylene 331.62
    formic acid 16.21
    diethyl ether 823.44
    m-xylene 300.76
    p-xylene 456.74
    chlorobenzene 571.24
    dimethyl carbonate 122.0
    n-octane 106.28
    formamide 35.94
    cyclopentanone 1590.38
    2-pentanone 869.11
    anisole 506.03
    cyclopentyl methyl ether 1346.44
    gamma-butyrolactone 1357.17
    1-methoxy-2-propanol 440.33
    pyridine 819.13
    3-pentanone 714.86
    furfural 832.08
    n-dodecane 46.34
    diethylene glycol 125.49
    diisopropyl ether 468.52
    tert-amyl alcohol 469.19
    acetylacetone 889.07
    n-hexadecane 59.13
    acetophenone 570.87
    methyl propionate 534.06
    isopentyl acetate 1129.73
    trichloroethylene 1773.48
    n-nonanol 243.61
    cyclohexanol 673.2
    benzyl alcohol 251.19
    2-ethylhexanol 407.84
    isooctanol 258.83
    dipropyl ether 1276.26
    1,2-dichlorobenzene 682.93
    ethyl lactate 267.57
    propylene carbonate 832.65
    n-methylformamide 145.74
    2-pentanol 316.3
    n-pentane 151.99
    1-propoxy-2-propanol 613.52
    1-methoxy-2-propyl acetate 852.06
    2-(2-methoxypropoxy) propanol 418.28
    mesitylene 265.5
    ε-caprolactone 1502.71
    p-cymene 313.75
    epichlorohydrin 1357.2
    1,1,1-trichloroethane 1630.28
    2-aminoethanol 37.39
    morpholine-4-carbaldehyde 862.52
    sulfolane 1790.28
    2,2,4-trimethylpentane 109.06
    2-methyltetrahydrofuran 1591.97
    n-hexyl acetate 1055.36
    isooctane 81.98
    2-(2-butoxyethoxy)ethanol 567.94
    sec-butyl acetate 898.41
    tert-butyl acetate 1158.39
    decalin 277.41
    glycerin 46.52
    diglyme 1281.45
    acrylic acid 112.43
    isopropyl myristate 438.21
    n-butyric acid 638.25
    acetyl acetate 510.22
    di(2-ethylhexyl) phthalate 232.97
    ethyl propionate 912.07
    nitromethane 360.11
    1,2-diethoxyethane 1217.13
    benzonitrile 434.99
    trioctyl phosphate 198.63
    1-bromopropane 1004.3
    gamma-valerolactone 1654.32
    n-decanol 164.91
    triethyl phosphate 490.17
    4-methyl-2-pentanol 247.98
    propionitrile 315.97
    vinylene carbonate 545.09
    1,1,2-trichlorotrifluoroethane 763.61
    DMS 469.84
    cumene 245.49
    2-octanol 223.93
    2-hexanone 856.53
    octyl acetate 455.84
    limonene 651.89
    1,2-dimethoxyethane 1092.19
    ethyl orthosilicate 512.87
    tributyl phosphate 291.69
    diacetone alcohol 707.41
    N,N-dimethylaniline 383.82
    acrylonitrile 252.78
    aniline 302.58
    1,3-propanediol 104.8
    bromobenzene 716.52
    dibromomethane 1257.47
    1,1,2,2-tetrachloroethane 1975.6
    2-methyl-cyclohexyl acetate 826.11
    tetrabutyl urea 415.14
    diisobutyl methanol 360.99
    2-phenylethanol 282.18
    styrene 357.54
    dioctyl adipate 570.45
    dimethyl sulfate 263.95
    ethyl butyrate 1265.3
    methyl lactate 160.67
    butyl lactate 541.69
    diethyl carbonate 609.32
    propanediol butyl ether 293.31
    triethyl orthoformate 936.08
    p-tert-butyltoluene 292.19
    methyl 4-tert-butylbenzoate 593.24
    morpholine 1102.84
    tert-butylamine 387.38
    n-dodecanol 125.41
    dimethoxymethane 442.99
    ethylene carbonate 606.15
    cyrene 376.76
    2-ethoxyethyl acetate 895.25
    2-ethylhexyl acetate 1000.57
    1,2,4-trichlorobenzene 762.08
    4-methylpyridine 827.42
    dibutyl ether 1101.27
    2,6-dimethyl-4-heptanol 360.99
    DEF 998.32
    dimethyl isosorbide 976.6
    tetrachloroethylene 1240.0
    eugenol 395.2
    triacetin 852.06
    span 80 454.59
    1,4-butanediol 41.16
    1,1-dichloroethane 1188.46
    2-methyl-1-pentanol 273.43
    methyl formate 105.08
    2-methyl-1-butanol 319.58
    n-decane 115.8
    butyronitrile 473.96
    3,7-dimethyl-1-octanol 333.14
    1-chlorooctane 429.87
    1-chlorotetradecane 138.93
    n-nonane 123.93
    undecane 67.19
    tert-butylcyclohexane 208.48
    cyclooctane 253.29
    cyclopentanol 555.63
    tetrahydropyran 1708.59
    tert-amyl methyl ether 777.99
    2,5,8-trioxanonane 760.81
    1-hexene 502.19
    2-isopropoxyethanol 333.0
    2,2,2-trifluoroethanol 62.6
    methyl butyrate 1184.53

    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