Carnosol p-quinone

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  • Identifiers

    CAS number
    156162-09-3

    Molecular formula
    C20H24O5

    SMILES
    CC(C)C1=C(C2=C(C(=O)C1=O)[C@@]34CCCC([C@@H]3C[C@@H]2OC4=O)(C)C)O

    Safety labels

  • Odor profile

    Fragrance
    Sweet 43.59%
    Mint 40.11%
    Woody 37.08%
    Herbal 36.49%
    Spicy 31.6%
    Tobacco 29.85%
    Camphoreous 28.14%
    Odorless 25.44%
    Caramellic 25.42%
    Phenolic 23.76%

     

    Flavor
    Bitter 87.95%
    Cedarleaf 20.48%
    Lovage 20.23%
    Ripe apricot 19.28%
    Red fruit 19.26%
    Parsley 19.01%
    Basil 18.65%
    Leaves 18.6%
    Fenugreek 18.1%
    Sweet-like 18.09%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    2.5

    pKa est.
    5.98 (weak acid)

    Molecular weight
    344.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    569°C

    Flash point

    • 196.46 ˚C est.

  • Synonyms

    • Carnosol p-quinone
    • DTXSID601315977
    • 12-Hydroxy-7beta-7,20-epoxyabieta-8,12-diene-11,14,20-trione
    • 156162-09-3
    • 156162-09-3

  • Applications

    Carnosol p-quinone (CAS 156162-09-3) is primarily considered a synthetic-chemistry intermediate and a redox-active building block. In industrial contexts it may be used as a stabilizer or antioxidant derivative for polymers and coatings, functioning as a processing aid to improve oxidative stability. It is also examined as a chemical precursor in cosmetic formulations to supply antioxidant components. In pharmaceutical and analytical research, it can serve as a scaffold for developing related compounds or as a reference material in redox studies.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 8.89
    methanol 10.29
    isopropanol 9.71
    water 0.04
    ethyl acetate 29.19
    n-propanol 11.64
    acetone 29.77
    n-butanol 14.15
    acetonitrile 14.98
    DMF 98.08
    toluene 24.88
    isobutanol 10.01
    1,4-dioxane 49.8
    methyl acetate 31.23
    THF 115.26
    2-butanone 38.44
    n-pentanol 7.84
    sec-butanol 8.32
    n-hexane 0.41
    ethylene glycol 5.71
    NMP 204.87
    cyclohexane 1.37
    DMSO 60.07
    n-butyl acetate 25.42
    n-octanol 2.88
    chloroform 89.93
    n-propyl acetate 17.19
    acetic acid 35.89
    dichloromethane 67.53
    cyclohexanone 89.2
    propylene glycol 6.45
    isopropyl acetate 24.35
    DMAc 110.28
    2-ethoxyethanol 20.71
    isopentanol 14.69
    n-heptane 0.29
    ethyl formate 22.12
    1,2-dichloroethane 56.22
    n-hexanol 12.94
    2-methoxyethanol 51.32
    isobutyl acetate 14.22
    tetrachloromethane 10.37
    n-pentyl acetate 17.65
    transcutol 38.59
    n-heptanol 6.72
    ethylbenzene 8.19
    MIBK 23.74
    2-propoxyethanol 50.58
    tert-butanol 11.78
    MTBE 6.16
    2-butoxyethanol 25.37
    propionic acid 24.24
    o-xylene 13.93
    formic acid 20.87
    diethyl ether 9.34
    m-xylene 16.44
    p-xylene 11.11
    chlorobenzene 35.96
    dimethyl carbonate 33.26
    n-octane 0.14
    formamide 31.21
    cyclopentanone 131.54
    2-pentanone 34.38
    anisole 15.04
    cyclopentyl methyl ether 35.28
    gamma-butyrolactone 146.58
    1-methoxy-2-propanol 40.9
    pyridine 79.09
    3-pentanone 27.66
    furfural 111.81
    n-dodecane 0.14
    diethylene glycol 40.39
    diisopropyl ether 3.23
    tert-amyl alcohol 8.37
    acetylacetone 45.79
    n-hexadecane 0.17
    acetophenone 27.23
    methyl propionate 35.61
    isopentyl acetate 26.89
    trichloroethylene 136.86
    n-nonanol 3.58
    cyclohexanol 21.24
    benzyl alcohol 24.87
    2-ethylhexanol 8.09
    isooctanol 5.87
    dipropyl ether 5.43
    1,2-dichlorobenzene 33.29
    ethyl lactate 15.86
    propylene carbonate 68.61
    n-methylformamide 45.58
    2-pentanol 8.46
    n-pentane 0.48
    1-propoxy-2-propanol 28.36
    1-methoxy-2-propyl acetate 43.87
    2-(2-methoxypropoxy) propanol 24.48
    mesitylene 8.52
    ε-caprolactone 80.32
    p-cymene 6.38
    epichlorohydrin 149.57
    1,1,1-trichloroethane 42.06
    2-aminoethanol 10.54
    morpholine-4-carbaldehyde 144.76
    sulfolane 170.39
    2,2,4-trimethylpentane 0.41
    2-methyltetrahydrofuran 49.91
    n-hexyl acetate 17.1
    isooctane 0.34
    2-(2-butoxyethoxy)ethanol 27.14
    sec-butyl acetate 14.08
    tert-butyl acetate 23.67
    decalin 1.03
    glycerin 22.39
    diglyme 49.9
    acrylic acid 33.61
    isopropyl myristate 6.38
    n-butyric acid 40.25
    acetyl acetate 28.03
    di(2-ethylhexyl) phthalate 14.29
    ethyl propionate 18.15
    nitromethane 67.44
    1,2-diethoxyethane 11.56
    benzonitrile 34.67
    trioctyl phosphate 8.93
    1-bromopropane 16.55
    gamma-valerolactone 163.96
    n-decanol 2.61
    triethyl phosphate 13.28
    4-methyl-2-pentanol 7.63
    propionitrile 19.81
    vinylene carbonate 71.67
    1,1,2-trichlorotrifluoroethane 99.01
    DMS 32.93
    cumene 5.75
    2-octanol 3.19
    2-hexanone 17.83
    octyl acetate 9.0
    limonene 7.13
    1,2-dimethoxyethane 31.5
    ethyl orthosilicate 11.49
    tributyl phosphate 10.43
    diacetone alcohol 36.23
    N,N-dimethylaniline 12.69
    acrylonitrile 35.12
    aniline 36.78
    1,3-propanediol 23.32
    bromobenzene 33.18
    dibromomethane 39.22
    1,1,2,2-tetrachloroethane 99.53
    2-methyl-cyclohexyl acetate 21.36
    tetrabutyl urea 15.73
    diisobutyl methanol 5.0
    2-phenylethanol 33.45
    styrene 8.82
    dioctyl adipate 12.59
    dimethyl sulfate 61.09
    ethyl butyrate 15.8
    methyl lactate 36.04
    butyl lactate 19.2
    diethyl carbonate 13.15
    propanediol butyl ether 14.83
    triethyl orthoformate 13.02
    p-tert-butyltoluene 5.94
    methyl 4-tert-butylbenzoate 27.06
    morpholine 66.82
    tert-butylamine 4.63
    n-dodecanol 1.92
    dimethoxymethane 50.82
    ethylene carbonate 54.85
    cyrene 46.93
    2-ethoxyethyl acetate 30.72
    2-ethylhexyl acetate 21.46
    1,2,4-trichlorobenzene 49.58
    4-methylpyridine 73.08
    dibutyl ether 2.7
    2,6-dimethyl-4-heptanol 5.0
    DEF 43.74
    dimethyl isosorbide 60.08
    tetrachloroethylene 62.87
    eugenol 30.33
    triacetin 24.08
    span 80 20.65
    1,4-butanediol 7.42
    1,1-dichloroethane 39.74
    2-methyl-1-pentanol 9.48
    methyl formate 38.37
    2-methyl-1-butanol 11.91
    n-decane 0.2
    butyronitrile 18.77
    3,7-dimethyl-1-octanol 4.87
    1-chlorooctane 1.8
    1-chlorotetradecane 0.89
    n-nonane 0.15
    undecane 0.16
    tert-butylcyclohexane 0.68
    cyclooctane 0.47
    cyclopentanol 29.5
    tetrahydropyran 34.53
    tert-amyl methyl ether 7.28
    2,5,8-trioxanonane 34.45
    1-hexene 2.15
    2-isopropoxyethanol 15.36
    2,2,2-trifluoroethanol 24.93
    methyl butyrate 23.69

    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