Pentamethyl octahydroindenodioxane

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  • Identifiers

    CAS number
    365411-50-3

    Molecular formula
    C16H26O2

    SMILES
    CC1C(C2=C(C1(C)C)C3C(CC2)COCO3)(C)C

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Woody 81.96%
    Amber 62.44%
    Musk 55.74%
    Dry 51.12%
    Cedar 44.94%
    Powdery 42.57%
    Spicy 40.78%
    Sandalwood 38.31%
    Sweet 36.53%
    Vetiver 35.06%

     

    Flavor
    Woody 54.68%
    Camphor 43.51%
    Earthy 41.53%
    Herbal 37.83%
    Earth 37.76%
    Pine 35.7%
    Bitter 32.79%
    Spicy 30.18%
    Wood 28.58%
    Green 28.32%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    3.1

    pKa est.
    6.96 (neutral)

    Molecular weight
    250.38 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    336°C

    Flash point

    • 133.49 ˚C est.

  • Synonyms

    • Pentamethyl octahydroindenodioxane
    • 365411-50-3
    • NEBULONE
    • 3A152H3F7R
    • DTXSID80889173
    • Indeno(4,5-d)-1,3-dioxin, 4,4a,5,6,7,8,9,9b-octahydro-7,7,8,9,9-pentamethyl-
    • Indeno[4,5-d]-1,3-dioxin, 4,4a,5,6,7,8,9,9b-octahydro-7,7,8,9,9-pentamethyl-
    • RefChem:859834
    • DTXCID001028441
    • PENTAMETHYL OCTAHYDROINDENODIOXANE [INCI]
    • Indeno4,5-d-1,3-dioxin, 4,4a,5,6,7,8,9,9b-octahydro-7,7,8,9,9-pentamethyl-
    • 7,7,8,9,9-pentamethyl-4,4a,5,6,8,9b-hexahydrocyclopenta[h][1,3]benzodioxine
    • UNII-3A152H3F7R
    • SCHEMBL235763
    • NJQDALIDWNJDSW-UHFFFAOYSA-N
    • NS00019896
    • Q27256942
    • 7,7,8,9,9-Pentamethyl-4,4a,5,6,7,8,9,9b-octahydro-2H-indeno[4,5-d][1,3]dioxine
    • 365411-50-3

  • Applications

    Pentamethyl octahydroindenodioxane (CAS 365411-50-3) is viewed as a fragrance-related ingredient, potentially functioning as a fragrance component or fixative in perfumery and personal care formulations; it is also evaluated as an organic synthesis intermediate for specialty chemicals in industrial manufacturing; in household products it may act as a scent additive, and in coatings and inks as an odor-modulating component, subject to formulation constraints and local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 113.57
    methanol 131.62
    isopropanol 102.71
    water 3.69
    ethyl acetate 335.85
    n-propanol 136.27
    acetone 355.8
    n-butanol 119.23
    acetonitrile 390.07
    DMF 443.98
    toluene 539.99
    isobutanol 114.14
    1,4-dioxane 585.5
    methyl acetate 323.08
    THF 837.4
    2-butanone 320.26
    n-pentanol 67.23
    sec-butanol 80.13
    n-hexane 12.77
    ethylene glycol 45.27
    NMP 466.55
    cyclohexane 70.13
    DMSO 247.94
    n-butyl acetate 274.37
    n-octanol 72.95
    chloroform 1368.33
    n-propyl acetate 209.6
    acetic acid 232.51
    dichloromethane 1087.55
    cyclohexanone 641.82
    propylene glycol 41.97
    isopropyl acetate 259.57
    DMAc 307.11
    2-ethoxyethanol 132.89
    isopentanol 109.12
    n-heptane 20.85
    ethyl formate 257.62
    1,2-dichloroethane 596.67
    n-hexanol 132.19
    2-methoxyethanol 241.73
    isobutyl acetate 176.4
    tetrachloromethane 323.24
    n-pentyl acetate 230.56
    transcutol 323.66
    n-heptanol 100.41
    ethylbenzene 206.41
    MIBK 202.37
    2-propoxyethanol 249.58
    tert-butanol 107.59
    MTBE 133.38
    2-butoxyethanol 184.71
    propionic acid 196.16
    o-xylene 289.65
    formic acid 91.96
    diethyl ether 194.2
    m-xylene 362.65
    p-xylene 267.58
    chlorobenzene 625.74
    dimethyl carbonate 225.06
    n-octane 9.81
    formamide 148.17
    cyclopentanone 765.1
    2-pentanone 276.12
    anisole 293.37
    cyclopentyl methyl ether 392.78
    gamma-butyrolactone 881.66
    1-methoxy-2-propanol 187.36
    pyridine 754.46
    3-pentanone 260.39
    furfural 780.56
    n-dodecane 7.79
    diethylene glycol 187.55
    diisopropyl ether 90.87
    tert-amyl alcohol 80.0
    acetylacetone 384.24
    n-hexadecane 9.89
    acetophenone 311.83
    methyl propionate 295.46
    isopentyl acetate 281.61
    trichloroethylene 1240.49
    n-nonanol 68.97
    cyclohexanol 189.82
    benzyl alcohol 228.38
    2-ethylhexanol 104.68
    isooctanol 86.76
    dipropyl ether 130.23
    1,2-dichlorobenzene 568.58
    ethyl lactate 120.51
    propylene carbonate 498.3
    n-methylformamide 286.33
    2-pentanol 79.72
    n-pentane 21.96
    1-propoxy-2-propanol 175.01
    1-methoxy-2-propyl acetate 318.87
    2-(2-methoxypropoxy) propanol 151.31
    mesitylene 220.48
    ε-caprolactone 538.91
    p-cymene 156.4
    epichlorohydrin 768.15
    1,1,1-trichloroethane 693.28
    2-aminoethanol 84.89
    morpholine-4-carbaldehyde 533.03
    sulfolane 678.38
    2,2,4-trimethylpentane 15.7
    2-methyltetrahydrofuran 476.94
    n-hexyl acetate 254.95
    isooctane 14.5
    2-(2-butoxyethoxy)ethanol 176.36
    sec-butyl acetate 163.71
    tert-butyl acetate 252.02
    decalin 37.43
    glycerin 76.81
    diglyme 390.29
    acrylic acid 216.89
    isopropyl myristate 99.75
    n-butyric acid 260.37
    acetyl acetate 319.02
    di(2-ethylhexyl) phthalate 118.14
    ethyl propionate 208.14
    nitromethane 502.82
    1,2-diethoxyethane 169.31
    benzonitrile 488.69
    trioctyl phosphate 84.74
    1-bromopropane 285.66
    gamma-valerolactone 846.08
    n-decanol 49.46
    triethyl phosphate 131.67
    4-methyl-2-pentanol 67.83
    propionitrile 323.66
    vinylene carbonate 584.96
    1,1,2-trichlorotrifluoroethane 431.77
    DMS 298.82
    cumene 139.76
    2-octanol 64.16
    2-hexanone 168.95
    octyl acetate 123.75
    limonene 157.64
    1,2-dimethoxyethane 260.54
    ethyl orthosilicate 120.39
    tributyl phosphate 98.24
    diacetone alcohol 192.93
    N,N-dimethylaniline 196.24
    acrylonitrile 445.19
    aniline 389.63
    1,3-propanediol 126.44
    bromobenzene 750.3
    dibromomethane 678.35
    1,1,2,2-tetrachloroethane 823.02
    2-methyl-cyclohexyl acetate 200.63
    tetrabutyl urea 112.66
    diisobutyl methanol 74.68
    2-phenylethanol 273.94
    styrene 247.94
    dioctyl adipate 144.56
    dimethyl sulfate 303.98
    ethyl butyrate 215.13
    methyl lactate 146.87
    butyl lactate 159.11
    diethyl carbonate 173.91
    propanediol butyl ether 124.5
    triethyl orthoformate 160.02
    p-tert-butyltoluene 144.41
    methyl 4-tert-butylbenzoate 255.37
    morpholine 498.2
    tert-butylamine 78.92
    n-dodecanol 36.93
    dimethoxymethane 337.8
    ethylene carbonate 484.66
    cyrene 201.83
    2-ethoxyethyl acetate 315.3
    2-ethylhexyl acetate 241.24
    1,2,4-trichlorobenzene 613.74
    4-methylpyridine 677.3
    dibutyl ether 81.54
    2,6-dimethyl-4-heptanol 74.68
    DEF 264.77
    dimethyl isosorbide 331.21
    tetrachloroethylene 622.91
    eugenol 225.28
    triacetin 270.71
    span 80 137.19
    1,4-butanediol 52.23
    1,1-dichloroethane 552.96
    2-methyl-1-pentanol 72.64
    methyl formate 297.85
    2-methyl-1-butanol 100.63
    n-decane 14.78
    butyronitrile 275.74
    3,7-dimethyl-1-octanol 78.0
    1-chlorooctane 77.01
    1-chlorotetradecane 30.05
    n-nonane 13.13
    undecane 10.35
    tert-butylcyclohexane 29.09
    cyclooctane 28.71
    cyclopentanol 208.7
    tetrahydropyran 504.55
    tert-amyl methyl ether 114.02
    2,5,8-trioxanonane 240.4
    1-hexene 49.47
    2-isopropoxyethanol 108.03
    2,2,2-trifluoroethanol 166.09
    methyl butyrate 239.75

    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