9,17-Octadecadienal

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  • Identifiers

    CAS number
    85263-73-6

    Molecular formula
    C18H32O

    SMILES
    C=CCCCCCC/C=C/CCCCCCCC=O

    Safety labels

  • Odor profile

    Fragrance
    Fatty 70.78%
    Waxy 61.23%
    Citrus 56.84%
    Aldehydic 39.84%
    Oily 37.93%
    Fresh 37.1%
    Sweet 36.39%
    Fruity 35.35%
    Orange 35.24%
    Meaty 33.06%

     

    Flavor
    Waxy 33.22%
    Citrus 27.64%
    Fatty 24.33%
    Wax 21.91%
    Incense 20.65%
    Dewy 20.44%
    Delicate 20.39%
    Grapefruit peel 20.39%
    Citrus peel 20.33%
    Slightly waxy 20.16%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    6.7

    pKa est.
    6.24 (neutral)

    Molecular weight
    264.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    330°C

    Flash point

    • 169.21 ˚C est.

  • Synonyms

    • 9,17-Octadecadienal
    • (9E)-octadeca-9,17-dienal
    • RefChem:1074857
    • 85263-73-6
    • SCHEMBL15466299
    • 85263-73-6

  • Applications

    9,17-Octadecadienal (CAS 85263-73-6) is commonly evaluated as a fragrance ingredient in perfumery, contributing aldehydic notes and potentially acting as a fixative in formulations. In cosmetics and personal care, it may be used as a fragrance additive in products such as lotions, creams, and soaps. It may also be considered for use as a flavor/aroma ingredient in certain food and beverage applications, within regulatory limits. Additionally, it can serve as an intermediate or building block for fragrance-related specialty chemicals used in coatings, inks, and plastics, and may be incorporated into household products (air fresheners, detergents) to impart a characteristic odor. Use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 140.09
    methanol 94.94
    isopropanol 166.4
    water 0.0
    ethyl acetate 494.29
    n-propanol 159.98
    acetone 339.6
    n-butanol 209.36
    acetonitrile 89.02
    DMF 274.62
    toluene 176.63
    isobutanol 150.28
    1,4-dioxane 466.16
    methyl acetate 210.21
    THF 1291.81
    2-butanone 382.39
    n-pentanol 168.35
    sec-butanol 184.64
    n-hexane 118.79
    ethylene glycol 5.41
    NMP 438.22
    cyclohexane 355.51
    DMSO 555.95
    n-butyl acetate 593.05
    n-octanol 100.85
    chloroform 745.38
    n-propyl acetate 514.67
    acetic acid 87.32
    dichloromethane 815.71
    cyclohexanone 872.83
    propylene glycol 22.26
    isopropyl acetate 442.09
    DMAc 377.02
    2-ethoxyethanol 250.22
    isopentanol 257.41
    n-heptane 128.1
    ethyl formate 157.16
    1,2-dichloroethane 728.77
    n-hexanol 197.83
    2-methoxyethanol 259.8
    isobutyl acetate 331.67
    tetrachloromethane 185.87
    n-pentyl acetate 449.57
    transcutol 1447.51
    n-heptanol 105.7
    ethylbenzene 141.15
    MIBK 439.22
    2-propoxyethanol 325.12
    tert-butanol 274.71
    MTBE 453.94
    2-butoxyethanol 240.6
    propionic acid 100.5
    o-xylene 143.96
    formic acid 12.34
    diethyl ether 533.44
    m-xylene 150.01
    p-xylene 170.53
    chlorobenzene 252.66
    dimethyl carbonate 65.15
    n-octane 35.42
    formamide 26.48
    cyclopentanone 788.45
    2-pentanone 533.75
    anisole 262.0
    cyclopentyl methyl ether 727.19
    gamma-butyrolactone 638.9
    1-methoxy-2-propanol 307.55
    pyridine 407.91
    3-pentanone 348.44
    furfural 439.33
    n-dodecane 16.12
    diethylene glycol 99.44
    diisopropyl ether 228.63
    tert-amyl alcohol 264.74
    acetylacetone 521.17
    n-hexadecane 19.76
    acetophenone 285.24
    methyl propionate 277.54
    isopentyl acetate 532.06
    trichloroethylene 952.9
    n-nonanol 105.86
    cyclohexanol 331.86
    benzyl alcohol 147.23
    2-ethylhexanol 218.35
    isooctanol 126.8
    dipropyl ether 600.57
    1,2-dichlorobenzene 292.48
    ethyl lactate 135.07
    propylene carbonate 375.19
    n-methylformamide 81.76
    2-pentanol 198.22
    n-pentane 77.74
    1-propoxy-2-propanol 389.28
    1-methoxy-2-propyl acetate 468.3
    2-(2-methoxypropoxy) propanol 243.73
    mesitylene 124.69
    ε-caprolactone 674.06
    p-cymene 122.98
    epichlorohydrin 906.28
    1,1,1-trichloroethane 642.1
    2-aminoethanol 28.75
    morpholine-4-carbaldehyde 419.28
    sulfolane 907.38
    2,2,4-trimethylpentane 49.58
    2-methyltetrahydrofuran 924.26
    n-hexyl acetate 418.19
    isooctane 41.37
    2-(2-butoxyethoxy)ethanol 351.4
    sec-butyl acetate 405.75
    tert-butyl acetate 542.61
    decalin 98.58
    glycerin 34.24
    diglyme 794.7
    acrylic acid 55.38
    isopropyl myristate 162.88
    n-butyric acid 347.32
    acetyl acetate 238.44
    di(2-ethylhexyl) phthalate 101.93
    ethyl propionate 407.48
    nitromethane 205.9
    1,2-diethoxyethane 775.91
    benzonitrile 196.46
    trioctyl phosphate 83.1
    1-bromopropane 549.71
    gamma-valerolactone 866.7
    n-decanol 73.55
    triethyl phosphate 205.65
    4-methyl-2-pentanol 154.16
    propionitrile 142.43
    vinylene carbonate 236.36
    1,1,2-trichlorotrifluoroethane 411.23
    DMS 194.92
    cumene 108.18
    2-octanol 95.28
    2-hexanone 461.09
    octyl acetate 171.21
    limonene 254.37
    1,2-dimethoxyethane 657.64
    ethyl orthosilicate 221.92
    tributyl phosphate 120.08
    diacetone alcohol 417.71
    N,N-dimethylaniline 192.87
    acrylonitrile 115.43
    aniline 154.83
    1,3-propanediol 81.62
    bromobenzene 304.64
    dibromomethane 608.08
    1,1,2,2-tetrachloroethane 975.11
    2-methyl-cyclohexyl acetate 374.6
    tetrabutyl urea 165.78
    diisobutyl methanol 184.92
    2-phenylethanol 166.78
    styrene 167.45
    dioctyl adipate 235.91
    dimethyl sulfate 132.72
    ethyl butyrate 541.24
    methyl lactate 90.11
    butyl lactate 236.86
    diethyl carbonate 266.54
    propanediol butyl ether 168.41
    triethyl orthoformate 404.4
    p-tert-butyltoluene 116.08
    methyl 4-tert-butylbenzoate 268.78
    morpholine 695.38
    tert-butylamine 209.95
    n-dodecanol 55.43
    dimethoxymethane 321.05
    ethylene carbonate 244.24
    cyrene 214.72
    2-ethoxyethyl acetate 447.08
    2-ethylhexyl acetate 446.42
    1,2,4-trichlorobenzene 320.8
    4-methylpyridine 406.31
    dibutyl ether 460.59
    2,6-dimethyl-4-heptanol 184.92
    DEF 484.81
    dimethyl isosorbide 566.16
    tetrachloroethylene 596.38
    eugenol 198.17
    triacetin 355.03
    span 80 223.53
    1,4-butanediol 30.1
    1,1-dichloroethane 565.85
    2-methyl-1-pentanol 199.04
    methyl formate 58.71
    2-methyl-1-butanol 203.35
    n-decane 39.01
    butyronitrile 239.59
    3,7-dimethyl-1-octanol 159.1
    1-chlorooctane 158.76
    1-chlorotetradecane 47.42
    n-nonane 41.01
    undecane 23.29
    tert-butylcyclohexane 74.03
    cyclooctane 94.47
    cyclopentanol 253.67
    tetrahydropyran 973.28
    tert-amyl methyl ether 379.38
    2,5,8-trioxanonane 473.78
    1-hexene 258.36
    2-isopropoxyethanol 232.36
    2,2,2-trifluoroethanol 28.27
    methyl butyrate 544.61

    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