Kaurene

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    34424-57-2

    Molecular formula
    C20H32

    SMILES
    C[C@H]1CC23CC[C@H]4[C@]([C@@H]2CC[C@H]1C3)(C=CCC4(C)C)C

    Retention indicies (RI)

    • DB5: 2041.8

  • Odor profile

    Woody 83.12%
    Dry 52.62%
    Amber 49.44%
    Sweet 46.55%
    Spicy 40.34%
    Cedar 39.62%
    Green 34.02%
    Musk 33.73%
    Fresh 32.66%
    Sandalwood 30.99%

    Scent© AI

  • Properties

    XLogP3-AA
    7.2

    pKa est.
    8.42 (weak base)

    Molecular weight
    272.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    354°C

    Flash point est.
    160.52 ˚C

  • Synonyms

    • 34424-57-2
    • (4R,9R,10R,13S,14S)-5,5,9,14-tetramethyltetracyclo[11.2.1.01,10.04,9]hexadec-7-ene
    • (4aR,8S,9S,11aR,11bR)-4,4,8,11b-tetramethyl-3,4,4a,5,6,7,8,9,10,11,11a,11b-dodecahydro-6a,9-methanocyclohepta[a]naphthalene
    • CHEBI:167426

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 66.7
    methanol 22.92
    isopropanol 72.19
    water 0.12
    ethyl acetate 235.75
    n-propanol 93.91
    acetone 198.66
    n-butanol 140.19
    acetonitrile 68.6
    DMF 145.33
    toluene 647.28
    isobutanol 92.91
    1,4-dioxane 456.61
    methyl acetate 131.55
    THF 1006.68
    2-butanone 220.68
    n-pentanol 71.11
    sec-butanol 68.16
    n-hexane 70.42
    ethylene glycol 3.92
    NMP 218.19
    cyclohexane 214.78
    DMSO 51.93
    n-butyl acetate 322.33
    n-octanol 90.28
    chloroform 399.37
    n-propyl acetate 132.88
    acetic acid 33.17
    dichloromethane 312.84
    cyclohexanone 479.45
    propylene glycol 9.53
    isopropyl acetate 257.14
    DMAc 157.12
    2-ethoxyethanol 66.13
    isopentanol 151.23
    n-heptane 109.19
    ethyl formate 70.83
    1,2-dichloroethane 231.65
    n-hexanol 204.19
    2-methoxyethanol 97.47
    isobutyl acetate 159.37
    tetrachloromethane 108.81
    n-pentyl acetate 197.43
    transcutol 400.17
    n-heptanol 108.75
    ethylbenzene 179.51
    MIBK 267.85
    2-propoxyethanol 228.39
    tert-butanol 90.42
    MTBE 260.51
    2-butoxyethanol 138.92
    propionic acid 47.11
    o-xylene 256.62
    formic acid 5.93
    diethyl ether 378.76
    m-xylene 411.93
    p-xylene 206.35
    chlorobenzene 310.12
    dimethyl carbonate 91.87
    n-octane 33.25
    formamide 11.78
    cyclopentanone 485.57
    2-pentanone 301.79
    anisole 236.62
    cyclopentyl methyl ether 552.43
    gamma-butyrolactone 338.35
    1-methoxy-2-propanol 124.43
    pyridine 414.5
    3-pentanone 240.21
    furfural 209.6
    n-dodecane 21.9
    diethylene glycol 69.89
    diisopropyl ether 205.7
    tert-amyl alcohol 75.18
    acetylacetone 270.93
    n-hexadecane 26.69
    acetophenone 174.9
    methyl propionate 183.15
    isopentyl acetate 355.97
    trichloroethylene 358.75
    n-nonanol 95.69
    cyclohexanol 186.94
    benzyl alcohol 103.86
    2-ethylhexanol 175.23
    isooctanol 103.36
    dipropyl ether 363.66
    1,2-dichlorobenzene 242.27
    ethyl lactate 51.84
    propylene carbonate 195.39
    n-methylformamide 44.58
    2-pentanol 112.41
    n-pentane 106.13
    1-propoxy-2-propanol 221.04
    1-methoxy-2-propyl acetate 346.68
    2-(2-methoxypropoxy) propanol 144.57
    mesitylene 263.08
    ε-caprolactone 365.22
    p-cymene 170.58
    epichlorohydrin 346.95
    1,1,1-trichloroethane 262.35
    2-aminoethanol 14.8
    morpholine-4-carbaldehyde 259.11
    sulfolane 218.58
    2,2,4-trimethylpentane 45.69
    2-methyltetrahydrofuran 564.82
    n-hexyl acetate 247.75
    isooctane 55.12
    2-(2-butoxyethoxy)ethanol 183.32
    sec-butyl acetate 147.83
    tert-butyl acetate 297.43
    decalin 77.62
    glycerin 15.76
    diglyme 343.91
    acrylic acid 32.55
    isopropyl myristate 129.98
    n-butyric acid 130.04
    acetyl acetate 155.75
    di(2-ethylhexyl) phthalate 96.13
    ethyl propionate 148.97
    nitromethane 61.93
    1,2-diethoxyethane 288.43
    benzonitrile 164.86
    trioctyl phosphate 80.38
    1-bromopropane 285.24
    gamma-valerolactone 470.58
    n-decanol 71.8
    triethyl phosphate 110.26
    4-methyl-2-pentanol 110.64
    propionitrile 115.91
    vinylene carbonate 174.37
    1,1,2-trichlorotrifluoroethane 107.4
    DMS 167.56
    cumene 123.17
    2-octanol 73.6
    2-hexanone 151.37
    octyl acetate 135.22
    limonene 220.91
    1,2-dimethoxyethane 196.07
    ethyl orthosilicate 125.36
    tributyl phosphate 87.74
    diacetone alcohol 169.93
    N,N-dimethylaniline 159.44
    acrylonitrile 89.31
    aniline 261.47
    1,3-propanediol 46.73
    bromobenzene 410.54
    dibromomethane 278.87
    1,1,2,2-tetrachloroethane 275.84
    2-methyl-cyclohexyl acetate 216.35
    tetrabutyl urea 108.27
    diisobutyl methanol 129.47
    2-phenylethanol 189.89
    styrene 206.11
    dioctyl adipate 139.99
    dimethyl sulfate 88.9
    ethyl butyrate 243.66
    methyl lactate 54.17
    butyl lactate 111.43
    diethyl carbonate 138.1
    propanediol butyl ether 76.7
    triethyl orthoformate 208.2
    p-tert-butyltoluene 183.5
    methyl 4-tert-butylbenzoate 201.27
    morpholine 427.97
    tert-butylamine 99.29
    n-dodecanol 57.39
    dimethoxymethane 280.06
    ethylene carbonate 171.09
    cyrene 126.09
    2-ethoxyethyl acetate 240.17
    2-ethylhexyl acetate 308.49
    1,2,4-trichlorobenzene 259.84
    4-methylpyridine 449.4
    dibutyl ether 186.9
    2,6-dimethyl-4-heptanol 129.47
    DEF 229.58
    dimethyl isosorbide 310.96
    tetrachloroethylene 180.75
    eugenol 143.57
    triacetin 182.55
    span 80 135.12
    1,4-butanediol 14.01
    1,1-dichloroethane 236.08
    2-methyl-1-pentanol 84.33
    methyl formate 37.09
    2-methyl-1-butanol 127.97
    n-decane 41.54
    butyronitrile 161.67
    3,7-dimethyl-1-octanol 113.47
    1-chlorooctane 112.44
    1-chlorotetradecane 51.28
    n-nonane 38.67
    undecane 29.35
    tert-butylcyclohexane 62.82
    cyclooctane 110.2
    cyclopentanol 136.81
    tetrahydropyran 725.83
    tert-amyl methyl ether 193.47
    2,5,8-trioxanonane 218.82
    1-hexene 139.38
    2-isopropoxyethanol 72.9
    2,2,2-trifluoroethanol 18.34
    methyl butyrate 155.01

    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

Botanical

Name CAS Botanical Proportion
Abies alba needle (Serbia) 8021-27-0 Abies alba Mill., fam. Pinaceae 0.05%
Abies cephalonica needle (Greece) Abies cephalonica Loud., fam. Pinaceae 0.2%
Abies borisii-regis needle (Greece) Abies borisii-regis Mattf., fam. Pinaceae 0.05%
Acacia caven flower Acacia caven (Mol.) Mol., fam. Mimosaceae (Leguminosae) 6.6%
Cinnamomum aureofulvum leaf Cinnamomum aureofulvum Gamb., fam. Lauraceae 1.4%
Ruilopezia atropurpurea Ruilopezia atropurperea (A.C. Sm.) Cuatr., fam. Asteraceae (Compositae) 1.2%
Cassie absolute 1a extract 8023-82-3 Acacia farnesiana (L.) Willd., fam. Mimosaceae (Leguminosae) 0.5%
Coespeletia thyrsiformis leaf (Venezuela) Coespeletia thyrsiformis (A.C. Smith) Cuatr., fam. Asteraceae 2.2%