cis-1,2,3,5,6,7,8,8a-Octahydro-1,8a-dimethyl-7-(1-methylethylidene)naphthalene

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  • Identifiers

    CAS number
    51608-13-0

    Molecular formula
    C15H24

    SMILES
    CC1CCC=C2C1(CC(=C(C)C)CC2)C

    Safety labels

  • Odor profile

    Fragrance
    Woody 87.06%
    Sweet 67.2%
    Spicy 54.75%
    Dry 46.93%
    Balsamic 44.84%
    Terpenic 38.63%
    Citrus 37.21%
    Amber 36.14%
    Fresh 35.39%
    Green 35.07%

     

    Flavor
    Woody 60.65%
    Wood 51.66%
    Sweet 44.63%
    Dry 39.47%
    Spice 33.93%
    Spicy 31.86%
    Pine 31.21%
    Balsamic 28.74%
    Camphor 27.78%
    Fresh 26.66%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    4.5

    pKa est.
    10.42 (weak base)

    Molecular weight
    204.35 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Slow

    Boiling point est.
    275°C

    Flash point

    • 96.7 ˚C est.

  • Synonyms

    • 51608-13-0
    • cis-1,2,3,5,6,7,8,8a-Octahydro-1,8a-dimethyl-7-(1-methylethylidene)naphthalene
    • 4a,5-dimethyl-3-(propan-2-ylidene)-1,2,3,4,4a,5,6,7-octahydronaphthalene
    • EINECS 257-317-4
    • Eremophila-1(10),7(11)-diene
    • SCHEMBL11822871
    • DTXSID101377005
    • 51608-13-0

  • Applications

    cis-1,2,3,5,6,7,8,8a-Octahydro-1,8a-dimethyl-7-(1-methylethylidene)naphthalene (CAS 51608-13-0) has real-world applicability across several industries, with the most notable roles as a fragrance ingredient and fixative in perfumery; a scent component in cosmetics/personal care products; an odorant additive in household products such as air fresheners and cleaners; an industrial intermediate for the synthesis of cyclic hydrocarbon-based specialty chemicals used in fragrance-related manufacturing; and may be evaluated for aroma contributions in flavor/fragrance research programs, all subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 74.84
    methanol 30.67
    isopropanol 88.31
    water 0.04
    ethyl acetate 331.09
    n-propanol 99.47
    acetone 188.38
    n-butanol 134.6
    acetonitrile 110.86
    DMF 161.01
    toluene 672.17
    isobutanol 84.16
    1,4-dioxane 683.84
    methyl acetate 226.37
    THF 966.7
    2-butanone 284.42
    n-pentanol 74.42
    sec-butanol 89.38
    n-hexane 112.74
    ethylene glycol 4.29
    NMP 175.4
    cyclohexane 265.9
    DMSO 70.3
    n-butyl acetate 577.43
    n-octanol 120.47
    chloroform 606.22
    n-propyl acetate 193.96
    acetic acid 31.59
    dichloromethane 520.81
    cyclohexanone 475.31
    propylene glycol 11.24
    isopropyl acetate 266.35
    DMAc 201.11
    2-ethoxyethanol 77.17
    isopentanol 135.54
    n-heptane 195.85
    ethyl formate 100.94
    1,2-dichloroethane 356.81
    n-hexanol 257.78
    2-methoxyethanol 102.07
    isobutyl acetate 187.41
    tetrachloromethane 164.08
    n-pentyl acetate 263.36
    transcutol 606.13
    n-heptanol 128.3
    ethylbenzene 284.44
    MIBK 238.29
    2-propoxyethanol 250.03
    tert-butanol 142.26
    MTBE 370.3
    2-butoxyethanol 146.72
    propionic acid 48.91
    o-xylene 344.26
    formic acid 4.52
    diethyl ether 450.61
    m-xylene 415.02
    p-xylene 345.21
    chlorobenzene 362.34
    dimethyl carbonate 81.47
    n-octane 63.43
    formamide 12.29
    cyclopentanone 466.56
    2-pentanone 289.29
    anisole 362.27
    cyclopentyl methyl ether 499.92
    gamma-butyrolactone 308.66
    1-methoxy-2-propanol 117.71
    pyridine 549.22
    3-pentanone 275.03
    furfural 228.66
    n-dodecane 39.27
    diethylene glycol 69.48
    diisopropyl ether 208.48
    tert-amyl alcohol 125.17
    acetylacetone 277.29
    n-hexadecane 48.68
    acetophenone 260.1
    methyl propionate 204.8
    isopentyl acetate 532.0
    trichloroethylene 547.1
    n-nonanol 126.71
    cyclohexanol 167.64
    benzyl alcohol 124.48
    2-ethylhexanol 245.45
    isooctanol 120.83
    dipropyl ether 570.55
    1,2-dichlorobenzene 316.22
    ethyl lactate 51.42
    propylene carbonate 191.54
    n-methylformamide 44.61
    2-pentanol 104.08
    n-pentane 105.45
    1-propoxy-2-propanol 248.61
    1-methoxy-2-propyl acetate 394.91
    2-(2-methoxypropoxy) propanol 211.37
    mesitylene 282.88
    ε-caprolactone 357.48
    p-cymene 287.4
    epichlorohydrin 400.66
    1,1,1-trichloroethane 428.95
    2-aminoethanol 15.03
    morpholine-4-carbaldehyde 273.58
    sulfolane 231.22
    2,2,4-trimethylpentane 54.12
    2-methyltetrahydrofuran 665.04
    n-hexyl acetate 343.91
    isooctane 59.7
    2-(2-butoxyethoxy)ethanol 239.18
    sec-butyl acetate 191.55
    tert-butyl acetate 325.69
    decalin 112.87
    glycerin 14.27
    diglyme 511.39
    acrylic acid 31.92
    isopropyl myristate 198.34
    n-butyric acid 120.99
    acetyl acetate 199.47
    di(2-ethylhexyl) phthalate 142.67
    ethyl propionate 201.22
    nitromethane 76.96
    1,2-diethoxyethane 553.6
    benzonitrile 222.75
    trioctyl phosphate 91.85
    1-bromopropane 381.87
    gamma-valerolactone 414.98
    n-decanol 98.63
    triethyl phosphate 152.51
    4-methyl-2-pentanol 100.33
    propionitrile 183.59
    vinylene carbonate 182.78
    1,1,2-trichlorotrifluoroethane 115.39
    DMS 234.48
    cumene 201.62
    2-octanol 95.97
    2-hexanone 207.03
    octyl acetate 203.3
    limonene 351.34
    1,2-dimethoxyethane 318.3
    ethyl orthosilicate 169.12
    tributyl phosphate 112.97
    diacetone alcohol 175.04
    N,N-dimethylaniline 249.66
    acrylonitrile 139.77
    aniline 264.33
    1,3-propanediol 40.36
    bromobenzene 505.29
    dibromomethane 404.38
    1,1,2,2-tetrachloroethane 403.11
    2-methyl-cyclohexyl acetate 307.82
    tetrabutyl urea 152.66
    diisobutyl methanol 166.7
    2-phenylethanol 245.23
    styrene 305.08
    dioctyl adipate 214.83
    dimethyl sulfate 81.64
    ethyl butyrate 382.4
    methyl lactate 44.22
    butyl lactate 109.73
    diethyl carbonate 218.74
    propanediol butyl ether 84.48
    triethyl orthoformate 272.28
    p-tert-butyltoluene 291.82
    methyl 4-tert-butylbenzoate 267.31
    morpholine 546.68
    tert-butylamine 144.43
    n-dodecanol 81.25
    dimethoxymethane 239.02
    ethylene carbonate 167.11
    cyrene 125.42
    2-ethoxyethyl acetate 319.85
    2-ethylhexyl acetate 505.16
    1,2,4-trichlorobenzene 341.78
    4-methylpyridine 549.53
    dibutyl ether 346.92
    2,6-dimethyl-4-heptanol 166.7
    DEF 252.42
    dimethyl isosorbide 447.19
    tetrachloroethylene 259.69
    eugenol 182.54
    triacetin 242.48
    span 80 171.21
    1,4-butanediol 13.78
    1,1-dichloroethane 342.21
    2-methyl-1-pentanol 96.37
    methyl formate 37.6
    2-methyl-1-butanol 112.92
    n-decane 69.6
    butyronitrile 214.26
    3,7-dimethyl-1-octanol 162.02
    1-chlorooctane 179.16
    1-chlorotetradecane 84.44
    n-nonane 67.68
    undecane 50.95
    tert-butylcyclohexane 100.71
    cyclooctane 130.77
    cyclopentanol 124.12
    tetrahydropyran 840.64
    tert-amyl methyl ether 251.71
    2,5,8-trioxanonane 348.77
    1-hexene 228.23
    2-isopropoxyethanol 86.47
    2,2,2-trifluoroethanol 13.52
    methyl butyrate 214.5

    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