1-(2,3,8,8-Tetramethyl-1,2,3,4,6,7,8,8a-octahydronaphthalen-2-yl)ethanone

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  • Identifiers

    CAS number
    68155-67-9

    Molecular formula
    C16H26O

    SMILES
    CC1CC2=CCCC(C2CC1(C)C(=O)C)(C)C

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Woody 87.85%
    Amber 53.9%
    Dry 50.05%
    Cedar 47.63%
    Orris 43.57%
    Vetiver 42.71%
    Musk 39.98%
    Tobacco 37.4%
    Camphoreous 37.03%
    Herbal 35.52%

     

    Flavor
    Woody 61.61%
    Camphor 47.28%
    Herbal 42.13%
    Sweet 41.96%
    Pine 38.22%
    Dry 33.46%
    Minty 29.36%
    Earthy 28.93%
    Wood 28.76%
    Balsam 25.69%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    3.7

    pKa est.
    8.59 (weak base)

    Molecular weight
    234.38 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    309°C

    Flash point

    • 117.7 ˚C est.

  • Synonyms

    • 68155-67-9
    • Ethanone, 1-(1,2,3,4,6,7,8,8a-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)-
    • EINECS 268-979-9
    • Z578SE5DGN
    • 1-(1,2,3,4,6,7,8,8a-Octahydro-2,3,8,8-tetramethyl-2-naphthyl)ethan-1-one
    • 1-(2,3,8,8-tetramethyl-1,2,3,4,6,7,8,8a-octahydronaphthalen-2-yl)ethanone
    • 1-(2,3,8,8-tetramethyl-1,2,3,4,6,7,8,8a-octahydronaphthalen-2-yl)ethan-1-one
    • UNII-Z578SE5DGN
    • SCHEMBL3109638
    • DTXSID6041923
    • YLWIXGWLTDBBHL-UHFFFAOYSA-N
    • NS00013073
    • Q27295015
    • 2,3,8,8-TETRAMETHYL-2- ACETYL-1,2,3,4,6,7,8,8A-OCTAHYDRONAPHTHALENES
    • 2,3,8,8-TETRAMETHYL-2-ACETYL-1,2,3,4,6,7,8,8A-OCTAHYDRONAPHTHALENES
    • Timbersilk

  • Applications

    1-(2,3,8,8-Tetramethyl-1,2,3,4,6,7,8,8a-octahydronaphthalen-2-yl)ethanone (CAS 68155-67-9) may be used in perfumery as an odorant and fixative, contributing to fragrance longevity; it is commonly employed as a fragrance ingredient in cosmetics and personal care products and also appears in household cleaning and air freshening formulations. In industrial manufacturing, it can serve as an aroma chemical intermediate for the synthesis of more complex fragrance components, and its use is typically governed by local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 146.45
    methanol 124.55
    isopropanol 172.26
    water 0.71
    ethyl acetate 343.35
    n-propanol 173.61
    acetone 371.29
    n-butanol 170.67
    acetonitrile 356.62
    DMF 575.33
    toluene 699.46
    isobutanol 152.82
    1,4-dioxane 901.3
    methyl acetate 375.27
    THF 1112.16
    2-butanone 448.08
    n-pentanol 106.39
    sec-butanol 152.27
    n-hexane 28.2
    ethylene glycol 20.73
    NMP 496.47
    cyclohexane 108.5
    DMSO 200.62
    n-butyl acetate 344.47
    n-octanol 123.55
    chloroform 1369.24
    n-propyl acetate 222.37
    acetic acid 126.47
    dichloromethane 1018.81
    cyclohexanone 714.64
    propylene glycol 45.17
    isopropyl acetate 265.6
    DMAc 461.65
    2-ethoxyethanol 138.38
    isopentanol 164.62
    n-heptane 36.63
    ethyl formate 200.0
    1,2-dichloroethane 503.26
    n-hexanol 215.72
    2-methoxyethanol 229.94
    isobutyl acetate 190.07
    tetrachloromethane 221.79
    n-pentyl acetate 238.09
    transcutol 710.01
    n-heptanol 139.11
    ethylbenzene 286.86
    MIBK 234.37
    2-propoxyethanol 319.56
    tert-butanol 211.03
    MTBE 257.96
    2-butoxyethanol 212.22
    propionic acid 150.02
    o-xylene 387.36
    formic acid 33.99
    diethyl ether 252.67
    m-xylene 448.5
    p-xylene 414.61
    chlorobenzene 624.15
    dimethyl carbonate 154.85
    n-octane 17.08
    formamide 81.78
    cyclopentanone 816.97
    2-pentanone 318.01
    anisole 432.34
    cyclopentyl methyl ether 426.95
    gamma-butyrolactone 693.77
    1-methoxy-2-propanol 244.07
    pyridine 886.95
    3-pentanone 280.77
    furfural 619.09
    n-dodecane 14.09
    diethylene glycol 164.34
    diisopropyl ether 112.29
    tert-amyl alcohol 163.49
    acetylacetone 388.22
    n-hexadecane 17.38
    acetophenone 370.28
    methyl propionate 278.82
    isopentyl acetate 340.46
    trichloroethylene 1146.77
    n-nonanol 119.37
    cyclohexanol 234.1
    benzyl alcohol 273.7
    2-ethylhexanol 167.99
    isooctanol 121.74
    dipropyl ether 188.56
    1,2-dichlorobenzene 528.44
    ethyl lactate 108.38
    propylene carbonate 406.34
    n-methylformamide 190.87
    2-pentanol 121.58
    n-pentane 34.8
    1-propoxy-2-propanol 283.47
    1-methoxy-2-propyl acetate 370.97
    2-(2-methoxypropoxy) propanol 246.93
    mesitylene 276.84
    ε-caprolactone 548.75
    p-cymene 194.94
    epichlorohydrin 726.83
    1,1,1-trichloroethane 662.58
    2-aminoethanol 62.12
    morpholine-4-carbaldehyde 643.67
    sulfolane 524.85
    2,2,4-trimethylpentane 26.47
    2-methyltetrahydrofuran 639.4
    n-hexyl acetate 322.81
    isooctane 24.77
    2-(2-butoxyethoxy)ethanol 288.45
    sec-butyl acetate 189.49
    tert-butyl acetate 290.52
    decalin 59.3
    glycerin 59.78
    diglyme 548.9
    acrylic acid 133.98
    isopropyl myristate 144.32
    n-butyric acid 237.3
    acetyl acetate 270.4
    di(2-ethylhexyl) phthalate 152.88
    ethyl propionate 208.21
    nitromethane 321.49
    1,2-diethoxyethane 326.75
    benzonitrile 494.72
    trioctyl phosphate 98.57
    1-bromopropane 325.43
    gamma-valerolactone 890.74
    n-decanol 88.92
    triethyl phosphate 138.12
    4-methyl-2-pentanol 102.18
    propionitrile 331.72
    vinylene carbonate 440.56
    1,1,2-trichlorotrifluoroethane 352.27
    DMS 303.02
    cumene 190.07
    2-octanol 99.71
    2-hexanone 239.46
    octyl acetate 170.8
    limonene 217.95
    1,2-dimethoxyethane 367.64
    ethyl orthosilicate 135.61
    tributyl phosphate 114.71
    diacetone alcohol 251.06
    N,N-dimethylaniline 282.54
    acrylonitrile 373.86
    aniline 465.13
    1,3-propanediol 103.84
    bromobenzene 731.96
    dibromomethane 624.35
    1,1,2,2-tetrachloroethane 812.34
    2-methyl-cyclohexyl acetate 260.19
    tetrabutyl urea 142.82
    diisobutyl methanol 112.89
    2-phenylethanol 346.26
    styrene 343.79
    dioctyl adipate 188.91
    dimethyl sulfate 198.0
    ethyl butyrate 254.83
    methyl lactate 130.55
    butyl lactate 185.92
    diethyl carbonate 184.61
    propanediol butyl ether 193.39
    triethyl orthoformate 190.96
    p-tert-butyltoluene 200.21
    methyl 4-tert-butylbenzoate 310.08
    morpholine 796.77
    tert-butylamine 164.39
    n-dodecanol 68.45
    dimethoxymethane 355.74
    ethylene carbonate 349.2
    cyrene 246.8
    2-ethoxyethyl acetate 314.79
    2-ethylhexyl acetate 282.37
    1,2,4-trichlorobenzene 592.79
    4-methylpyridine 911.79
    dibutyl ether 160.77
    2,6-dimethyl-4-heptanol 112.89
    DEF 307.46
    dimethyl isosorbide 499.47
    tetrachloroethylene 498.34
    eugenol 283.19
    triacetin 320.38
    span 80 231.32
    1,4-butanediol 40.23
    1,1-dichloroethane 610.65
    2-methyl-1-pentanol 121.76
    methyl formate 165.64
    2-methyl-1-butanol 151.02
    n-decane 24.99
    butyronitrile 332.06
    3,7-dimethyl-1-octanol 145.62
    1-chlorooctane 110.1
    1-chlorotetradecane 46.66
    n-nonane 22.06
    undecane 18.14
    tert-butylcyclohexane 49.83
    cyclooctane 40.2
    cyclopentanol 229.87
    tetrahydropyran 805.44
    tert-amyl methyl ether 177.98
    2,5,8-trioxanonane 355.86
    1-hexene 105.47
    2-isopropoxyethanol 129.77
    2,2,2-trifluoroethanol 70.9
    methyl butyrate 255.51

    Scent© AI

1 4

IFRA standard 51

Recommendation
Restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 0.41 % Category 7A
Rinse-off products applied to the hair with some hand contact
 0.67 %
Category 2
Products applied to the axillae
 1.1 % Category 7B
Leave-on products applied to the hair with some hand contact
 0.67 %
Category 3
Products applied to the face/body using fingertips
 0.41 % Category 8
Products with significant anogenital exposure
 0.19 %
Category 4
Products related to fine fragrance
 20 % Category 9
Products with body and hand exposure, primarily rinse off
 2.4 %
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 5.1 % Category 10A
Household care products with mostly hand contact
 2.4 %
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 0.56 % Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 6.6 %
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 0.76 % Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 0.19 %
Category 5D
Baby Creams, baby Oils and baby talc
 0.19 % Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 0.19 %
Category 6
Products with oral and lip exposure
 0.0093 % Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction