Indeno[1,2-d]-1,3-dioxin, 4,4a,5,9b-tetrahydro-2,4-dimethyl-

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  • Identifiers

    CAS number
    27606-09-3

    Molecular formula
    C13H16O2

    SMILES
    CC1C2CC3=CC=CC=C3C2OC(O1)C

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Floral 86.63%
    Green 73.2%
    Herbal 41.24%
    Rose 38.2%
    Geranium 34.03%
    Fresh 33.32%
    Jasmin 32.49%
    Hyacinth 30.75%
    Leafy 30.74%
    Earthy 29.85%

     

    Flavor
    Bitter 61.11%
    Sweet 49.96%
    Woody 34.95%
    Floral 31.77%
    Earthy 29.33%
    Herbal 27.6%
    Green 26.97%
    Naphthalic 25.02%
    Musty 23.22%
    Metallic 22.55%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.5

    pKa est.
    6.47 (neutral)

    Molecular weight
    204.26 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very slow

    Boiling point est.
    289°C

    Flash point

    • 126.03 ˚C est.

  • Synonyms

    • 27606-09-3
    • Magnolan
    • 2,4-Dimethyl-4,4a,5,9b-tetrahydroindeno[1,2-d]-1,3-dioxin
    • Indeno[1,2-d]-1,3-dioxin, 4,4a,5,9b-tetrahydro-2,4-dimethyl-
    • 2,4-dimethyl-4,4a,5,9b-tetrahydroindeno[1,2-d][1,3]dioxine
    • EINECS 248-561-2
    • 8NRR566ZKD
    • 2,4-Dimethyl-5,6-indeno-1,3-dioxan
    • Indeno(1,2-d)-1,3-dioxin, 4,4a,5,9b-tetrahydro-2,4-dimethyl-
    • 2,4-Dimethyl-4,4a,5,9b-tetrahydroindeno(1,2-d)-1,3-dioxin
    • 4,4a,5,9b-Tetrahydro-2,4-dimethylindeno[1,2-d]-1,3-dioxin
    • magnolia indene
    • SHWFPOIJJLMZKA-UHFFFAOYSA-N
    • UNII-8NRR566ZKD
    • CBDivE_010674
    • SCHEMBL273814
    • DTXSID30865386
    • HMS1577G14
    • STL300795
    • AKOS000560486
    • AKOS022104610
    • NS00012261
    • AB00074041-01
    • Indeno[1,2-d]-m-dioxin, 4,4a,5,9b-tetrahydro-2,4-dimethyl-
    • Indeno1,2-d-1,3-dioxin, 4,4a,5,9b-tetrahydro-2,4-dimethyl-
    • 248-561-2

  • Applications

    Indeno[1,2-d]-1,3-dioxin, 4,4a,5,9b-tetrahydro-2,4-dimethyl- (CAS 27606-09-3) may be used primarily as an intermediate in organic synthesis for specialty chemicals, providing a rigid polycyclic scaffold for the development of pharmaceuticals, agrochemicals, and advanced polymers. It is occasionally evaluated as a building block in fragrance or cosmetic research or as a precursor to more complex aromatic/dioxin-containing compounds in coatings and electronic materials. In practice, uses are highly formulation- and regulation-dependent, typically limited to research and development pipelines under appropriate safety and regulatory controls.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 147.59
    methanol 190.41
    isopropanol 103.75
    water 4.06
    ethyl acetate 203.71
    n-propanol 136.3
    acetone 185.51
    n-butanol 124.83
    acetonitrile 193.73
    DMF 224.05
    toluene 191.41
    isobutanol 101.7
    1,4-dioxane 557.49
    methyl acetate 219.49
    THF 369.64
    2-butanone 193.72
    n-pentanol 104.63
    sec-butanol 83.3
    n-hexane 15.82
    ethylene glycol 68.61
    NMP 211.4
    cyclohexane 57.89
    DMSO 226.89
    n-butyl acetate 180.15
    n-octanol 84.94
    chloroform 1193.73
    n-propyl acetate 157.94
    acetic acid 187.99
    dichloromethane 1097.23
    cyclohexanone 290.92
    propylene glycol 50.91
    isopropyl acetate 127.25
    DMAc 246.38
    2-ethoxyethanol 182.29
    isopentanol 110.91
    n-heptane 22.0
    ethyl formate 181.16
    1,2-dichloroethane 480.04
    n-hexanol 146.26
    2-methoxyethanol 219.71
    isobutyl acetate 138.68
    tetrachloromethane 158.89
    n-pentyl acetate 126.1
    transcutol 492.88
    n-heptanol 81.69
    ethylbenzene 107.06
    MIBK 110.1
    2-propoxyethanol 241.16
    tert-butanol 104.5
    MTBE 100.29
    2-butoxyethanol 144.05
    propionic acid 150.28
    o-xylene 117.99
    formic acid 73.5
    diethyl ether 160.85
    m-xylene 123.03
    p-xylene 133.86
    chlorobenzene 296.48
    dimethyl carbonate 108.89
    n-octane 14.51
    formamide 95.07
    cyclopentanone 274.58
    2-pentanone 136.49
    anisole 183.69
    cyclopentyl methyl ether 180.64
    gamma-butyrolactone 360.36
    1-methoxy-2-propanol 142.58
    pyridine 383.19
    3-pentanone 144.78
    furfural 358.34
    n-dodecane 17.92
    diethylene glycol 211.24
    diisopropyl ether 53.03
    tert-amyl alcohol 76.16
    acetylacetone 194.41
    n-hexadecane 20.7
    acetophenone 180.29
    methyl propionate 160.91
    isopentyl acetate 166.72
    trichloroethylene 792.64
    n-nonanol 80.41
    cyclohexanol 147.26
    benzyl alcohol 160.12
    2-ethylhexanol 93.46
    isooctanol 71.7
    dipropyl ether 106.83
    1,2-dichlorobenzene 256.91
    ethyl lactate 89.39
    propylene carbonate 263.18
    n-methylformamide 134.37
    2-pentanol 70.35
    n-pentane 19.36
    1-propoxy-2-propanol 135.94
    1-methoxy-2-propyl acetate 171.69
    2-(2-methoxypropoxy) propanol 144.25
    mesitylene 78.46
    ε-caprolactone 277.04
    p-cymene 73.8
    epichlorohydrin 420.09
    1,1,1-trichloroethane 346.1
    2-aminoethanol 89.18
    morpholine-4-carbaldehyde 314.68
    sulfolane 310.23
    2,2,4-trimethylpentane 14.1
    2-methyltetrahydrofuran 246.45
    n-hexyl acetate 164.1
    isooctane 12.01
    2-(2-butoxyethoxy)ethanol 197.78
    sec-butyl acetate 110.5
    tert-butyl acetate 107.92
    decalin 31.6
    glycerin 81.84
    diglyme 357.68
    acrylic acid 146.3
    isopropyl myristate 81.59
    n-butyric acid 187.77
    acetyl acetate 185.23
    di(2-ethylhexyl) phthalate 90.74
    ethyl propionate 129.33
    nitromethane 263.62
    1,2-diethoxyethane 204.54
    benzonitrile 237.06
    trioctyl phosphate 64.52
    1-bromopropane 248.84
    gamma-valerolactone 356.62
    n-decanol 66.58
    triethyl phosphate 90.01
    4-methyl-2-pentanol 58.69
    propionitrile 177.7
    vinylene carbonate 312.8
    1,1,2-trichlorotrifluoroethane 242.98
    DMS 178.09
    cumene 79.97
    2-octanol 57.49
    2-hexanone 128.19
    octyl acetate 98.62
    limonene 85.2
    1,2-dimethoxyethane 310.1
    ethyl orthosilicate 81.42
    tributyl phosphate 77.63
    diacetone alcohol 107.5
    N,N-dimethylaniline 126.57
    acrylonitrile 214.9
    aniline 184.65
    1,3-propanediol 128.45
    bromobenzene 337.76
    dibromomethane 628.03
    1,1,2,2-tetrachloroethane 575.27
    2-methyl-cyclohexyl acetate 129.81
    tetrabutyl urea 94.63
    diisobutyl methanol 59.97
    2-phenylethanol 161.17
    styrene 133.23
    dioctyl adipate 115.38
    dimethyl sulfate 132.76
    ethyl butyrate 138.77
    methyl lactate 88.44
    butyl lactate 97.0
    diethyl carbonate 121.9
    propanediol butyl ether 115.44
    triethyl orthoformate 106.93
    p-tert-butyltoluene 67.66
    methyl 4-tert-butylbenzoate 142.41
    morpholine 378.75
    tert-butylamine 75.99
    n-dodecanol 58.02
    dimethoxymethane 212.67
    ethylene carbonate 271.44
    cyrene 151.2
    2-ethoxyethyl acetate 181.37
    2-ethylhexyl acetate 137.01
    1,2,4-trichlorobenzene 287.74
    4-methylpyridine 300.38
    dibutyl ether 109.89
    2,6-dimethyl-4-heptanol 59.97
    DEF 163.76
    dimethyl isosorbide 219.02
    tetrachloroethylene 411.89
    eugenol 146.11
    triacetin 177.53
    span 80 122.74
    1,4-butanediol 73.45
    1,1-dichloroethane 384.96
    2-methyl-1-pentanol 102.65
    methyl formate 140.96
    2-methyl-1-butanol 98.6
    n-decane 25.0
    butyronitrile 174.2
    3,7-dimethyl-1-octanol 79.8
    1-chlorooctane 76.5
    1-chlorotetradecane 43.99
    n-nonane 22.66
    undecane 20.51
    tert-butylcyclohexane 25.37
    cyclooctane 22.18
    cyclopentanol 133.27
    tetrahydropyran 328.53
    tert-amyl methyl ether 79.31
    2,5,8-trioxanonane 263.72
    1-hexene 57.1
    2-isopropoxyethanol 137.42
    2,2,2-trifluoroethanol 101.76
    methyl butyrate 160.38

    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