1,3-Dioxolane, 2,4-dimethyl-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-

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  • Identifiers

    CAS number
    131812-67-4

    Molecular formula
    C19H28O2

    SMILES
    CC1COC(O1)(C)C2=CC3=C(C=C2)C(CCC3(C)C)(C)C

    Safety labels

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Musk 59.06%
    Woody 56.27%
    Fruity 49.92%
    Amber 46.88%
    Sweet 46.68%
    Powdery 43.1%
    Floral 41.42%
    Dry 37.66%
    Berry 28.7%
    Animal 28.34%

     

    Flavor
    Woody 56.85%
    Earthy 49.62%
    Camphor 45.08%
    Herbal 40.57%
    Earth 36.23%
    Musty 36.05%
    Green 34.48%
    Spicy 31.99%
    Spice 28.49%
    Pine 28.15%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    5.1

    pKa est.
    7.2 (neutral)

    Molecular weight
    288.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    320°C

    Flash point

    • 134.04 ˚C est.

  • Synonyms

    • 131812-67-4
    • 1,3-Dioxolane, 2,4-dimethyl-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-
    • 131812-51-6
    • 131812-52-7
    • DTXSID00888946
    • 2,4-dimethyl-2-(5,5,8,8-tetramethyl-6,7-dihydronaphthalen-2-yl)-1,3-dioxolane
    • Okoumal
    • woody dioxolane
    • 1,3-Dioxolan, 2,4-Dimethyl-2-(5,6,7,8,-Tetrahydro-5,5,8,8-tetramethyl-2-naphtalenyl)-
    • 2,4-dimethyl-2-(5,5,8,8-tetramethyltetralin-2-yl)-1,3-dioxolane
    • SCHEMBL1775975
    • DTXCID701028216
    • NS00024174
    • 2,4-Dimethyl-2-(1,1,4,4-tetramethyl-tetralin-6-Yl)-1,3-dioxolane
    • 639-471-8
    • 687-591-4

  • Applications

    1,3-Dioxolane, 2,4-dimethyl-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)- (CAS 131812-67-4) is used as an odorant and fragrance fixative in perfumery to impart a distinctive, long-lasting aroma; it is commonly evaluated as an intermediate in the synthesis of fragrance compounds and specialty chemicals in industrial manufacturing; in cosmetics and personal care, it may serve as a fragrance ingredient; in household products, coatings and inks, and cleaners as a scent additive; in polymers and plastics, it may act as a fragrance additive or processing aid to refine odor profiles; overall, its application is driven by fragrance-related formulation needs and is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 272.55
    methanol 183.37
    isopropanol 291.92
    water 0.85
    ethyl acetate 1553.89
    n-propanol 387.42
    acetone 1377.85
    n-butanol 384.02
    acetonitrile 804.98
    DMF 2699.17
    toluene 1544.88
    isobutanol 391.88
    1,4-dioxane 1896.67
    methyl acetate 1417.42
    THF 2509.66
    2-butanone 1443.92
    n-pentanol 301.55
    sec-butanol 366.85
    n-hexane 240.04
    ethylene glycol 63.73
    NMP 2577.78
    cyclohexane 390.09
    DMSO 847.09
    n-butyl acetate 1123.72
    n-octanol 296.61
    chloroform 4621.49
    n-propyl acetate 938.43
    acetic acid 463.58
    dichloromethane 3691.18
    cyclohexanone 2279.55
    propylene glycol 110.79
    isopropyl acetate 1305.04
    DMAc 2605.49
    2-ethoxyethanol 530.18
    isopentanol 430.35
    n-heptane 116.49
    ethyl formate 659.86
    1,2-dichloroethane 2489.39
    n-hexanol 459.2
    2-methoxyethanol 660.79
    isobutyl acetate 803.33
    tetrachloromethane 795.98
    n-pentyl acetate 818.88
    transcutol 2084.21
    n-heptanol 259.84
    ethylbenzene 750.87
    MIBK 948.08
    2-propoxyethanol 946.51
    tert-butanol 411.71
    MTBE 1192.07
    2-butoxyethanol 570.08
    propionic acid 509.94
    o-xylene 893.01
    formic acid 132.06
    diethyl ether 1298.79
    m-xylene 1014.81
    p-xylene 1000.87
    chlorobenzene 1771.55
    dimethyl carbonate 1229.52
    n-octane 59.24
    formamide 292.93
    cyclopentanone 2532.01
    2-pentanone 1322.05
    anisole 1224.36
    cyclopentyl methyl ether 1938.8
    gamma-butyrolactone 2586.61
    1-methoxy-2-propanol 699.99
    pyridine 1731.79
    3-pentanone 1492.75
    furfural 1960.06
    n-dodecane 40.31
    diethylene glycol 477.52
    diisopropyl ether 653.16
    tert-amyl alcohol 444.33
    acetylacetone 1777.49
    n-hexadecane 50.53
    acetophenone 1138.13
    methyl propionate 1621.67
    isopentyl acetate 1149.83
    trichloroethylene 4931.88
    n-nonanol 288.95
    cyclohexanol 707.0
    benzyl alcohol 594.42
    2-ethylhexanol 383.69
    isooctanol 251.84
    dipropyl ether 730.84
    1,2-dichlorobenzene 1724.55
    ethyl lactate 445.1
    propylene carbonate 1633.08
    n-methylformamide 775.69
    2-pentanol 384.55
    n-pentane 175.69
    1-propoxy-2-propanol 692.26
    1-methoxy-2-propyl acetate 1478.45
    2-(2-methoxypropoxy) propanol 608.5
    mesitylene 652.73
    ε-caprolactone 1965.66
    p-cymene 368.43
    epichlorohydrin 3133.46
    1,1,1-trichloroethane 2810.85
    2-aminoethanol 151.11
    morpholine-4-carbaldehyde 2619.23
    sulfolane 2589.93
    2,2,4-trimethylpentane 125.07
    2-methyltetrahydrofuran 2112.38
    n-hexyl acetate 1108.9
    isooctane 90.72
    2-(2-butoxyethoxy)ethanol 747.87
    sec-butyl acetate 889.69
    tert-butyl acetate 1428.01
    decalin 226.66
    glycerin 176.25
    diglyme 1683.35
    acrylic acid 467.35
    isopropyl myristate 412.28
    n-butyric acid 746.89
    acetyl acetate 1346.25
    di(2-ethylhexyl) phthalate 341.41
    ethyl propionate 1097.35
    nitromethane 1502.94
    1,2-diethoxyethane 1080.31
    benzonitrile 986.3
    trioctyl phosphate 262.61
    1-bromopropane 1447.95
    gamma-valerolactone 2886.21
    n-decanol 204.38
    triethyl phosphate 530.32
    4-methyl-2-pentanol 302.15
    propionitrile 746.56
    vinylene carbonate 1627.45
    1,1,2-trichlorotrifluoroethane 1676.81
    DMS 1428.62
    cumene 469.67
    2-octanol 211.16
    2-hexanone 805.33
    octyl acetate 499.19
    limonene 499.73
    1,2-dimethoxyethane 1299.69
    ethyl orthosilicate 505.03
    tributyl phosphate 357.16
    diacetone alcohol 828.33
    N,N-dimethylaniline 877.32
    acrylonitrile 883.33
    aniline 1041.18
    1,3-propanediol 237.02
    bromobenzene 2172.05
    dibromomethane 2355.62
    1,1,2,2-tetrachloroethane 3982.48
    2-methyl-cyclohexyl acetate 744.59
    tetrabutyl urea 433.33
    diisobutyl methanol 242.14
    2-phenylethanol 646.58
    styrene 889.81
    dioctyl adipate 562.29
    dimethyl sulfate 1649.98
    ethyl butyrate 895.79
    methyl lactate 629.52
    butyl lactate 558.05
    diethyl carbonate 695.02
    propanediol butyl ether 439.62
    triethyl orthoformate 720.25
    p-tert-butyltoluene 379.3
    methyl 4-tert-butylbenzoate 883.05
    morpholine 1886.9
    tert-butylamine 345.43
    n-dodecanol 154.44
    dimethoxymethane 1808.88
    ethylene carbonate 1510.27
    cyrene 651.93
    2-ethoxyethyl acetate 1186.0
    2-ethylhexyl acetate 1034.64
    1,2,4-trichlorobenzene 1927.99
    4-methylpyridine 2248.15
    dibutyl ether 598.67
    2,6-dimethyl-4-heptanol 242.14
    DEF 1844.82
    dimethyl isosorbide 1313.84
    tetrachloroethylene 2307.32
    eugenol 640.28
    triacetin 1186.58
    span 80 516.88
    1,4-butanediol 127.42
    1,1-dichloroethane 2442.87
    2-methyl-1-pentanol 345.97
    methyl formate 734.15
    2-methyl-1-butanol 455.54
    n-decane 80.49
    butyronitrile 671.53
    3,7-dimethyl-1-octanol 323.71
    1-chlorooctane 381.68
    1-chlorotetradecane 141.09
    n-nonane 77.77
    undecane 53.77
    tert-butylcyclohexane 187.33
    cyclooctane 186.1
    cyclopentanol 664.93
    tetrahydropyran 1949.97
    tert-amyl methyl ether 1026.14
    2,5,8-trioxanonane 973.63
    1-hexene 545.16
    2-isopropoxyethanol 479.9
    2,2,2-trifluoroethanol 396.67
    methyl butyrate 1180.99

    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