3,9-Dimethyl-2,4-dioxaspiro[5.5]undec-8-ene

  • Identifiers

    Molecular formula
    C11H18O2

    SMILES
    CC1OCC2(CCC(=CC2)C)CO1

  • Odor profile

    Fragrance
    Green 69.92%
    Herbal 49.63%
    Woody 40.27%
    Spicy 39.21%
    Floral 35.03%
    Fruity 32.33%
    Natural 29.05%
    Fresh 29.03%
    Citrus 26.53%
    Earthy 25.33%

     

    Flavor
    Earthy 32.96%
    Green 30.1%
    Fruity 29.36%
    Spicy 29.18%
    Floral 25.0%
    Musty 24.94%
    Woody 24.41%
    Herbal 23.29%
    Mint 21.87%
    Shrimp 20.74%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.8

    pKa est.
    8.39 (weak base)

    Molecular weight
    182.26 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    225°C

    Flash point

    • 84.3 ˚C est.

  • Synonyms

    • SCHEMBL11640579
    • STL300773
    • AKOS022104618
    • 3,9-dimethyl-2,4-dioxaspiro[5.5]undec-8-ene
  • Applications

    3,9-Dimethyl-2,4-dioxaspiro[5.5]undec-8-ene is primarily encountered as an intermediate in organic synthesis, often used as a carbonyl-protecting group during multi-step sequences; it may also function as a monomer or crosslinking component in specialty polymers and resins, and is sometimes evaluated as a reactive additive in coatings, inks, and adhesives to improve formulation stability and cure behavior; in industrial settings, it can serve as a precursor for more complex intermediates in synthesis, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 335.89
    methanol 209.07
    isopropanol 384.64
    water 1.54
    ethyl acetate 625.23
    n-propanol 323.57
    acetone 423.1
    n-butanol 343.72
    acetonitrile 449.33
    DMF 323.49
    toluene 331.93
    isobutanol 262.91
    1,4-dioxane 810.59
    methyl acetate 552.52
    THF 714.1
    2-butanone 484.87
    n-pentanol 192.85
    sec-butanol 315.29
    n-hexane 27.61
    ethylene glycol 70.65
    NMP 185.65
    cyclohexane 75.96
    DMSO 298.41
    n-butyl acetate 314.67
    n-octanol 165.27
    chloroform 1683.93
    n-propyl acetate 264.05
    acetic acid 334.47
    dichloromethane 1218.6
    cyclohexanone 432.23
    propylene glycol 148.1
    isopropyl acetate 382.07
    DMAc 353.86
    2-ethoxyethanol 336.5
    isopentanol 305.05
    n-heptane 34.47
    ethyl formate 295.82
    1,2-dichloroethane 548.92
    n-hexanol 258.94
    2-methoxyethanol 482.48
    isobutyl acetate 206.67
    tetrachloromethane 193.67
    n-pentyl acetate 195.65
    transcutol 1215.56
    n-heptanol 152.98
    ethylbenzene 164.85
    MIBK 276.37
    2-propoxyethanol 406.94
    tert-butanol 478.85
    MTBE 413.96
    2-butoxyethanol 277.03
    propionic acid 291.56
    o-xylene 211.87
    formic acid 90.25
    diethyl ether 390.71
    m-xylene 245.16
    p-xylene 226.96
    chlorobenzene 338.28
    dimethyl carbonate 179.24
    n-octane 21.0
    formamide 163.88
    cyclopentanone 443.55
    2-pentanone 369.55
    anisole 310.63
    cyclopentyl methyl ether 334.87
    gamma-butyrolactone 484.83
    1-methoxy-2-propanol 442.97
    pyridine 577.51
    3-pentanone 288.26
    furfural 534.51
    n-dodecane 24.32
    diethylene glycol 287.71
    diisopropyl ether 143.31
    tert-amyl alcohol 326.9
    acetylacetone 456.8
    n-hexadecane 27.6
    acetophenone 275.4
    methyl propionate 386.46
    isopentyl acetate 308.11
    trichloroethylene 1154.71
    n-nonanol 150.8
    cyclohexanol 268.52
    benzyl alcohol 229.96
    2-ethylhexanol 170.81
    isooctanol 132.45
    dipropyl ether 188.58
    1,2-dichlorobenzene 315.13
    ethyl lactate 143.92
    propylene carbonate 353.0
    n-methylformamide 191.31
    2-pentanol 272.89
    n-pentane 41.21
    1-propoxy-2-propanol 314.74
    1-methoxy-2-propyl acetate 346.9
    2-(2-methoxypropoxy) propanol 298.93
    mesitylene 158.26
    ε-caprolactone 420.4
    p-cymene 120.51
    epichlorohydrin 657.45
    1,1,1-trichloroethane 680.44
    2-aminoethanol 172.84
    morpholine-4-carbaldehyde 449.0
    sulfolane 369.78
    2,2,4-trimethylpentane 32.32
    2-methyltetrahydrofuran 522.54
    n-hexyl acetate 305.31
    isooctane 30.46
    2-(2-butoxyethoxy)ethanol 407.86
    sec-butyl acetate 223.71
    tert-butyl acetate 356.17
    decalin 46.7
    glycerin 177.93
    diglyme 688.53
    acrylic acid 231.14
    isopropyl myristate 147.08
    n-butyric acid 445.07
    acetyl acetate 423.57
    di(2-ethylhexyl) phthalate 128.95
    ethyl propionate 264.28
    nitromethane 544.41
    1,2-diethoxyethane 408.14
    benzonitrile 325.19
    trioctyl phosphate 91.47
    1-bromopropane 370.13
    gamma-valerolactone 623.11
    n-decanol 119.0
    triethyl phosphate 130.0
    4-methyl-2-pentanol 180.58
    propionitrile 370.65
    vinylene carbonate 377.44
    1,1,2-trichlorotrifluoroethane 443.69
    DMS 267.17
    cumene 121.15
    2-octanol 108.43
    2-hexanone 239.17
    octyl acetate 173.49
    limonene 149.85
    1,2-dimethoxyethane 490.55
    ethyl orthosilicate 129.93
    tributyl phosphate 118.29
    diacetone alcohol 334.25
    N,N-dimethylaniline 186.33
    acrylonitrile 393.93
    aniline 342.86
    1,3-propanediol 264.8
    bromobenzene 392.18
    dibromomethane 781.88
    1,1,2,2-tetrachloroethane 932.95
    2-methyl-cyclohexyl acetate 199.15
    tetrabutyl urea 128.39
    diisobutyl methanol 131.59
    2-phenylethanol 225.8
    styrene 199.33
    dioctyl adipate 187.19
    dimethyl sulfate 189.17
    ethyl butyrate 255.32
    methyl lactate 190.76
    butyl lactate 167.11
    diethyl carbonate 189.67
    propanediol butyl ether 257.1
    triethyl orthoformate 180.89
    p-tert-butyltoluene 123.57
    methyl 4-tert-butylbenzoate 262.5
    morpholine 756.27
    tert-butylamine 297.62
    n-dodecanol 100.28
    dimethoxymethane 354.55
    ethylene carbonate 324.84
    cyrene 204.74
    2-ethoxyethyl acetate 307.4
    2-ethylhexyl acetate 229.01
    1,2,4-trichlorobenzene 355.94
    4-methylpyridine 537.42
    dibutyl ether 204.29
    2,6-dimethyl-4-heptanol 131.59
    DEF 307.03
    dimethyl isosorbide 408.95
    tetrachloroethylene 530.88
    eugenol 229.71
    triacetin 352.95
    span 80 242.43
    1,4-butanediol 110.37
    1,1-dichloroethane 726.5
    2-methyl-1-pentanol 183.4
    methyl formate 170.07
    2-methyl-1-butanol 259.27
    n-decane 36.11
    butyronitrile 400.46
    3,7-dimethyl-1-octanol 179.09
    1-chlorooctane 128.88
    1-chlorotetradecane 63.91
    n-nonane 32.68
    undecane 28.77
    tert-butylcyclohexane 44.42
    cyclooctane 33.08
    cyclopentanol 236.66
    tetrahydropyran 609.65
    tert-amyl methyl ether 266.12
    2,5,8-trioxanonane 473.0
    1-hexene 113.32
    2-isopropoxyethanol 267.91
    2,2,2-trifluoroethanol 143.34
    methyl butyrate 307.16

    Scent© AI

1 of 4
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