(6aR,10aR)-4-hydroxy-7,7-dimethyl-6-oxo-3-propan-2-yl-6a,8,9,10-tetrahydrobenzo[c]chromene-1,10a-dicarbaldehyde

Overview IFRA Request a quote

  • Identifiers

    CAS number
    153660-18-5

    Molecular formula
    C20H24O5

    SMILES
    CC(C)C1=C(C2=C(C(=C1)C=O)[C@]3(CCCC([C@H]3C(=O)O2)(C)C)C=O)O

    Safety labels

  • Odor profile

    Fragrance
    Spicy 36.68%
    Woody 36.1%
    Mint 33.21%
    Herbal 32.64%
    Odorless 32.5%
    Dry 26.5%
    Green 23.29%
    Phenolic 22.86%
    Cooling 22.52%
    Warm 21.35%

     

    Flavor
    Bitter 77.34%
    Cedarleaf 21.05%
    Lovage 20.69%
    Parsley 20.22%
    Leaves 19.5%
    Basil 19.46%
    Red fruit 19.39%
    Ripe apricot 19.29%
    Minty 19.24%
    Heather 19.18%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    3.3

    pKa est.
    7.12 (neutral)

    Molecular weight
    344.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    826°C

    Flash point

    • 223.64 ˚C est.

  • Synonyms

    • DTXSID001317775
    • 153660-18-5
    • (6aR,10aR)-4-Hydroxy-7,7-dimethyl-6-oxo-3-(propan-2-yl)-6,6a,7,8,9,10-hexahydro-10aH-dibenzo[b,d]pyran-1,10a-dicarbaldehyde
    • 153660-18-5

  • Applications

    Chemical name: (6aR,10aR)-4-hydroxy-7,7-dimethyl-6-oxo-3-propan-2-yl-6a,8,9,10-tetrahydrobenzo[c]chromene-1,10a-dicarbaldehyde; CAS: 153660-18-5. Applications for this compound are primarily in roles as an intermediate in chemical synthesis, particularly in fragrance and cosmetic chemistry. It may be used as a fragrance ingredient precursor or odorant component in perfume formulations and personal care products, and is commonly evaluated as a building block for pharmaceutical synthesis in early development. In the polymers and coatings sector, the aldehyde functionality and the polycyclic chromene framework may enable use as a reactive intermediate for specialty resins and coating formulations. It may also be considered in household products as a fragrance additive or perfuming ingredient, subject to formulation limits and local regulations. Overall, usage is typically restricted to specific formulation contexts and depends on regulatory constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 45.78
    methanol 52.14
    isopropanol 33.39
    water 0.12
    ethyl acetate 75.46
    n-propanol 45.71
    acetone 101.21
    n-butanol 47.67
    acetonitrile 55.4
    DMF 309.57
    toluene 55.38
    isobutanol 32.75
    1,4-dioxane 102.18
    methyl acetate 85.66
    THF 290.65
    2-butanone 104.03
    n-pentanol 28.67
    sec-butanol 30.85
    n-hexane 1.35
    ethylene glycol 17.86
    NMP 397.6
    cyclohexane 3.18
    DMSO 188.87
    n-butyl acetate 60.25
    n-octanol 9.07
    chloroform 208.52
    n-propyl acetate 48.35
    acetic acid 135.1
    dichloromethane 185.48
    cyclohexanone 192.35
    propylene glycol 22.48
    isopropyl acetate 55.03
    DMAc 256.1
    2-ethoxyethanol 61.04
    isopentanol 43.17
    n-heptane 0.89
    ethyl formate 65.22
    1,2-dichloroethane 159.51
    n-hexanol 38.45
    2-methoxyethanol 136.51
    isobutyl acetate 34.03
    tetrachloromethane 23.33
    n-pentyl acetate 42.05
    transcutol 85.86
    n-heptanol 18.2
    ethylbenzene 19.92
    MIBK 58.79
    2-propoxyethanol 106.54
    tert-butanol 33.77
    MTBE 22.06
    2-butoxyethanol 55.66
    propionic acid 72.36
    o-xylene 27.53
    formic acid 69.71
    diethyl ether 32.27
    m-xylene 32.91
    p-xylene 24.75
    chlorobenzene 87.57
    dimethyl carbonate 80.86
    n-octane 0.44
    formamide 107.04
    cyclopentanone 281.37
    2-pentanone 91.13
    anisole 43.35
    cyclopentyl methyl ether 90.28
    gamma-butyrolactone 304.98
    1-methoxy-2-propanol 102.32
    pyridine 182.17
    3-pentanone 67.88
    furfural 240.13
    n-dodecane 0.4
    diethylene glycol 83.34
    diisopropyl ether 9.47
    tert-amyl alcohol 28.4
    acetylacetone 103.94
    n-hexadecane 0.49
    acetophenone 65.48
    methyl propionate 91.97
    isopentyl acetate 57.29
    trichloroethylene 338.63
    n-nonanol 10.09
    cyclohexanol 51.82
    benzyl alcohol 62.29
    2-ethylhexanol 21.48
    isooctanol 15.17
    dipropyl ether 15.76
    1,2-dichlorobenzene 79.76
    ethyl lactate 40.62
    propylene carbonate 155.46
    n-methylformamide 146.99
    2-pentanol 27.25
    n-pentane 1.66
    1-propoxy-2-propanol 59.93
    1-methoxy-2-propyl acetate 85.15
    2-(2-methoxypropoxy) propanol 46.32
    mesitylene 15.9
    ε-caprolactone 170.35
    p-cymene 13.97
    epichlorohydrin 347.39
    1,1,1-trichloroethane 100.34
    2-aminoethanol 34.29
    morpholine-4-carbaldehyde 275.51
    sulfolane 332.87
    2,2,4-trimethylpentane 1.26
    2-methyltetrahydrofuran 130.59
    n-hexyl acetate 41.03
    isooctane 0.97
    2-(2-butoxyethoxy)ethanol 53.49
    sec-butyl acetate 35.04
    tert-butyl acetate 54.45
    decalin 2.5
    glycerin 54.73
    diglyme 99.97
    acrylic acid 92.53
    isopropyl myristate 15.08
    n-butyric acid 106.79
    acetyl acetate 64.58
    di(2-ethylhexyl) phthalate 28.77
    ethyl propionate 46.39
    nitromethane 207.99
    1,2-diethoxyethane 30.39
    benzonitrile 77.96
    trioctyl phosphate 19.44
    1-bromopropane 53.25
    gamma-valerolactone 340.01
    n-decanol 7.27
    triethyl phosphate 26.41
    4-methyl-2-pentanol 20.0
    propionitrile 58.16
    vinylene carbonate 156.91
    1,1,2-trichlorotrifluoroethane 196.85
    DMS 67.88
    cumene 13.09
    2-octanol 9.54
    2-hexanone 50.9
    octyl acetate 22.11
    limonene 17.36
    1,2-dimethoxyethane 87.64
    ethyl orthosilicate 22.85
    tributyl phosphate 21.6
    diacetone alcohol 79.94
    N,N-dimethylaniline 31.78
    acrylonitrile 100.68
    aniline 83.93
    1,3-propanediol 62.85
    bromobenzene 80.38
    dibromomethane 113.52
    1,1,2,2-tetrachloroethane 220.99
    2-methyl-cyclohexyl acetate 43.97
    tetrabutyl urea 31.14
    diisobutyl methanol 11.67
    2-phenylethanol 67.38
    styrene 23.55
    dioctyl adipate 28.17
    dimethyl sulfate 134.15
    ethyl butyrate 37.28
    methyl lactate 80.55
    butyl lactate 43.49
    diethyl carbonate 30.5
    propanediol butyl ether 36.84
    triethyl orthoformate 28.13
    p-tert-butyltoluene 12.75
    methyl 4-tert-butylbenzoate 52.99
    morpholine 155.47
    tert-butylamine 14.82
    n-dodecanol 5.27
    dimethoxymethane 137.03
    ethylene carbonate 120.49
    cyrene 86.24
    2-ethoxyethyl acetate 63.71
    2-ethylhexyl acetate 45.08
    1,2,4-trichlorobenzene 103.38
    4-methylpyridine 175.39
    dibutyl ether 8.22
    2,6-dimethyl-4-heptanol 11.67
    DEF 113.7
    dimethyl isosorbide 103.57
    tetrachloroethylene 140.77
    eugenol 56.5
    triacetin 48.21
    span 80 39.05
    1,4-butanediol 22.41
    1,1-dichloroethane 111.87
    2-methyl-1-pentanol 30.59
    methyl formate 120.56
    2-methyl-1-butanol 39.97
    n-decane 0.65
    butyronitrile 61.02
    3,7-dimethyl-1-octanol 12.67
    1-chlorooctane 5.73
    1-chlorotetradecane 2.47
    n-nonane 0.49
    undecane 0.5
    tert-butylcyclohexane 1.79
    cyclooctane 1.11
    cyclopentanol 69.99
    tetrahydropyran 93.92
    tert-amyl methyl ether 23.49
    2,5,8-trioxanonane 64.78
    1-hexene 8.05
    2-isopropoxyethanol 42.17
    2,2,2-trifluoroethanol 67.95
    methyl butyrate 64.1

    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