(4I+/-,16I+/-)-17-Hydroxykauran-18-al

Overview IFRA Request a quote

  • Identifiers

    CAS number
    41756-43-8

    Molecular formula
    C20H32O2

    SMILES
    C[C@]1(CCC[C@@]2([C@@H]1CC[C@]34[C@H]2CC[C@@H](C3)[C@@H](C4)CO)C)C=O

    Safety labels

  • Odor profile

    Fragrance
    Woody 55.17%
    Floral 50.21%
    Fresh 42.62%
    Green 41.44%
    Amber 39.92%
    Muguet 39.33%
    Clean 36.74%
    Ozone 35.66%
    Aldehydic 35.43%
    Dry 35.25%

     

    Flavor
    Sweet 43.01%
    Fruity 37.44%
    Woody 37.07%
    Earthy 34.83%
    Spicy 34.6%
    Herbal 31.56%
    Fruit 30.37%
    Balsam 29.28%
    Herb 28.87%
    Fresh 27.26%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    4.8

    pKa est.
    7.39 (neutral)

    Molecular weight
    304.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    373°C

    Flash point

    • 205.26 ˚C est.

  • Synonyms

    • NSC606849
    • CHEMBL526698
    • DTXSID401303386
    • 41756-43-8
    • (4I+/-,16I+/-)-17-Hydroxykauran-18-al
    • 17-Hydroxy-5beta,8alpha,9beta,10alpha-kauran-18-al
    • 41756-43-8

  • Applications

    Chemical name: (4I+/-,16I+/-)-17-Hydroxykauran-18-al; CAS 41756-43-8 may serve as an intermediate or building block in diterpene chemistry, particularly for kauran-type frameworks, supporting synthesis of natural-product-derived compounds. In practical terms, it is commonly evaluated for use in pharmaceutical research as a synthetic precursor, and for fragrance and cosmetic applications where kaurane skeleton-derived structures are explored as odorants or fragrance precursors. It may also find roles in industrial manufacturing as a starting material for the preparation of more complex intermediates and polymer-related chemistries. Additionally, it is occasionally considered in agrochemical development as a scaffold for natural product-based lead compounds. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 209.67
    methanol 208.4
    isopropanol 202.44
    water 1.35
    ethyl acetate 220.64
    n-propanol 220.39
    acetone 368.37
    n-butanol 208.92
    acetonitrile 179.98
    DMF 366.68
    toluene 310.02
    isobutanol 114.6
    1,4-dioxane 435.45
    methyl acetate 124.98
    THF 1184.69
    2-butanone 182.17
    n-pentanol 34.55
    sec-butanol 39.44
    n-hexane 1.82
    ethylene glycol 23.06
    NMP 108.56
    cyclohexane 11.45
    DMSO 153.45
    n-butyl acetate 107.66
    n-octanol 18.22
    chloroform 479.18
    n-propyl acetate 72.48
    acetic acid 103.42
    dichloromethane 316.8
    cyclohexanone 288.41
    propylene glycol 24.61
    isopropyl acetate 202.8
    DMAc 119.54
    2-ethoxyethanol 98.65
    isopentanol 137.82
    n-heptane 2.4
    ethyl formate 103.77
    1,2-dichloroethane 228.44
    n-hexanol 65.63
    2-methoxyethanol 364.22
    isobutyl acetate 65.86
    tetrachloromethane 62.91
    n-pentyl acetate 71.24
    transcutol 370.92
    n-heptanol 35.55
    ethylbenzene 46.16
    MIBK 169.76
    2-propoxyethanol 212.88
    tert-butanol 142.53
    MTBE 97.16
    2-butoxyethanol 114.19
    propionic acid 69.86
    o-xylene 90.95
    formic acid 50.56
    diethyl ether 191.92
    m-xylene 165.67
    p-xylene 49.74
    chlorobenzene 207.37
    dimethyl carbonate 102.67
    n-octane 1.05
    formamide 100.94
    cyclopentanone 443.1
    2-pentanone 251.87
    anisole 115.85
    cyclopentyl methyl ether 261.96
    gamma-butyrolactone 367.91
    1-methoxy-2-propanol 297.59
    pyridine 411.02
    3-pentanone 123.19
    furfural 304.7
    n-dodecane 0.82
    diethylene glycol 145.05
    diisopropyl ether 44.14
    tert-amyl alcohol 33.59
    acetylacetone 300.22
    n-hexadecane 1.05
    acetophenone 93.61
    methyl propionate 155.17
    isopentyl acetate 118.81
    trichloroethylene 429.45
    n-nonanol 19.91
    cyclohexanol 97.75
    benzyl alcohol 90.37
    2-ethylhexanol 31.79
    isooctanol 30.76
    dipropyl ether 50.61
    1,2-dichlorobenzene 144.68
    ethyl lactate 47.68
    propylene carbonate 166.16
    n-methylformamide 212.3
    2-pentanol 64.54
    n-pentane 4.87
    1-propoxy-2-propanol 134.29
    1-methoxy-2-propyl acetate 208.81
    2-(2-methoxypropoxy) propanol 74.68
    mesitylene 76.01
    ε-caprolactone 196.58
    p-cymene 29.57
    epichlorohydrin 461.52
    1,1,1-trichloroethane 189.21
    2-aminoethanol 69.09
    morpholine-4-carbaldehyde 217.9
    sulfolane 239.85
    2,2,4-trimethylpentane 2.17
    2-methyltetrahydrofuran 243.55
    n-hexyl acetate 66.34
    isooctane 3.92
    2-(2-butoxyethoxy)ethanol 117.25
    sec-butyl acetate 62.62
    tert-butyl acetate 190.76
    decalin 4.06
    glycerin 59.29
    diglyme 245.35
    acrylic acid 67.96
    isopropyl myristate 26.26
    n-butyric acid 192.1
    acetyl acetate 157.67
    di(2-ethylhexyl) phthalate 35.31
    ethyl propionate 74.76
    nitromethane 220.21
    1,2-diethoxyethane 104.85
    benzonitrile 152.14
    trioctyl phosphate 25.25
    1-bromopropane 99.31
    gamma-valerolactone 530.19
    n-decanol 13.56
    triethyl phosphate 38.1
    4-methyl-2-pentanol 53.49
    propionitrile 188.45
    vinylene carbonate 180.89
    1,1,2-trichlorotrifluoroethane 185.87
    DMS 82.04
    cumene 27.6
    2-octanol 15.86
    2-hexanone 52.19
    octyl acetate 29.4
    limonene 29.96
    1,2-dimethoxyethane 194.03
    ethyl orthosilicate 37.27
    tributyl phosphate 26.67
    diacetone alcohol 156.75
    N,N-dimethylaniline 58.54
    acrylonitrile 225.36
    aniline 247.86
    1,3-propanediol 188.59
    bromobenzene 212.13
    dibromomethane 197.93
    1,1,2,2-tetrachloroethane 271.07
    2-methyl-cyclohexyl acetate 58.9
    tetrabutyl urea 31.1
    diisobutyl methanol 27.59
    2-phenylethanol 113.48
    styrene 62.06
    dioctyl adipate 38.97
    dimethyl sulfate 113.81
    ethyl butyrate 80.43
    methyl lactate 82.06
    butyl lactate 65.41
    diethyl carbonate 53.4
    propanediol butyl ether 66.12
    triethyl orthoformate 62.79
    p-tert-butyltoluene 31.3
    methyl 4-tert-butylbenzoate 95.59
    morpholine 449.81
    tert-butylamine 66.99
    n-dodecanol 9.27
    dimethoxymethane 529.09
    ethylene carbonate 168.74
    cyrene 79.5
    2-ethoxyethyl acetate 133.16
    2-ethylhexyl acetate 77.16
    1,2,4-trichlorobenzene 156.28
    4-methylpyridine 361.93
    dibutyl ether 20.7
    2,6-dimethyl-4-heptanol 27.59
    DEF 129.58
    dimethyl isosorbide 152.85
    tetrachloroethylene 187.39
    eugenol 90.76
    triacetin 85.79
    span 80 58.75
    1,4-butanediol 26.22
    1,1-dichloroethane 219.8
    2-methyl-1-pentanol 28.64
    methyl formate 141.8
    2-methyl-1-butanol 68.67
    n-decane 1.64
    butyronitrile 201.18
    3,7-dimethyl-1-octanol 25.51
    1-chlorooctane 10.75
    1-chlorotetradecane 3.66
    n-nonane 1.31
    undecane 1.12
    tert-butylcyclohexane 3.36
    cyclooctane 4.07
    cyclopentanol 102.28
    tetrahydropyran 405.76
    tert-amyl methyl ether 41.19
    2,5,8-trioxanonane 128.17
    1-hexene 9.5
    2-isopropoxyethanol 64.33
    2,2,2-trifluoroethanol 61.82
    methyl butyrate 82.06

    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