alpha-Acorenol

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    28296-85-7

    Molecular formula
    C15H26O

    SMILES
    C[C@H]1CCC([C@@]12CCC(=CC2)C)C(C)(C)O

    Retention indicies (RI)

    • DB5: 1629.5

  • Odor profile

    Woody 70.89%
    Floral 61.49%
    Sweet 60.7%
    Fruity 44.0%
    Spicy 43.42%
    Balsamic 39.76%
    Citrus 35.06%
    Rose 34.03%
    Dry 32.71%
    Amber 32.42%

    Scent© AI

  • Properties

    XLogP3-AA
    3.6

    Molecular weight
    222.37 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    303°C

    Flash point est.
    114.92 ˚C

  • Synonyms

    • alpha-Acorenol
    • .alpha.-Acorenol
    • Acorenol
    • .alpha.-acorenal
    • CHEBI:218729
    • XDVDHFJMCJWDPI-YOYPFHDYSA-N
    • 2-[(1S,5R)-1,8-dimethylspiro[4.5]dec-8-en-4-yl]propan-2-ol

  • Applications

    Alpha-Acorenol (CAS 28296-85-7) is a sesquiterpene alcohol with a characteristic woody-earthy profile, used primarily in the fragrance industry to build and reinforce vetiver/smoky/amber facets, serving as a base-note fixative and odor modulator in fine fragrances, soaps, shampoos, cleaners, scented candles, and personal care; in formulation it is employed neat or via ester derivatives (e.g., acorenyl acetate) to improve odor longevity and compatibility while masking industrial background notes; in analytics and research, alpha-acorenol acts as a GC/MS reference standard for qualitative-quantitative profiling, a chemical marker for origin/authenticity and quality control of sesquiterpene-rich essential oils (notably vetiver, patchouli, cyperus), and as a substrate/reference in studies of sesquiterpene synthases and exploratory in vitro bioactivity (antimicrobial, antioxidant); it is also useful for fragrance stability screening, matrix-interaction studies in delivery systems, and sustainable fragrance supply optimization, with use subject to IFRA guidance and applicable cosmetic regulations.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 782.58
    methanol 751.09
    isopropanol 931.03
    water 1.42
    ethyl acetate 911.99
    n-propanol 889.76
    acetone 1013.06
    n-butanol 965.79
    acetonitrile 748.37
    DMF 1062.46
    toluene 1096.79
    isobutanol 780.82
    1,4-dioxane 1722.08
    methyl acetate 788.7
    THF 2847.78
    2-butanone 1030.71
    n-pentanol 419.9
    sec-butanol 688.81
    n-hexane 215.26
    ethylene glycol 90.83
    NMP 628.79
    cyclohexane 460.56
    DMSO 533.08
    n-butyl acetate 690.02
    n-octanol 353.67
    chloroform 1928.75
    n-propyl acetate 417.29
    acetic acid 321.24
    dichloromethane 1244.49
    cyclohexanone 1309.2
    propylene glycol 180.75
    isopropyl acetate 740.02
    DMAc 747.09
    2-ethoxyethanol 416.44
    isopentanol 858.92
    n-heptane 138.14
    ethyl formate 412.61
    1,2-dichloroethane 814.51
    n-hexanol 893.21
    2-methoxyethanol 866.04
    isobutyl acetate 372.01
    tetrachloromethane 420.48
    n-pentyl acetate 429.73
    transcutol 1471.57
    n-heptanol 374.16
    ethylbenzene 386.2
    MIBK 662.05
    2-propoxyethanol 985.76
    tert-butanol 1019.18
    MTBE 1293.83
    2-butoxyethanol 516.15
    propionic acid 387.16
    o-xylene 480.77
    formic acid 99.31
    diethyl ether 1306.04
    m-xylene 664.36
    p-xylene 458.41
    chlorobenzene 725.45
    dimethyl carbonate 334.64
    n-octane 49.98
    formamide 153.25
    cyclopentanone 1319.8
    2-pentanone 939.06
    anisole 562.76
    cyclopentyl methyl ether 1190.39
    gamma-butyrolactone 1102.57
    1-methoxy-2-propanol 868.43
    pyridine 1107.64
    3-pentanone 732.53
    furfural 759.31
    n-dodecane 34.84
    diethylene glycol 473.08
    diisopropyl ether 481.96
    tert-amyl alcohol 662.61
    acetylacetone 774.2
    n-hexadecane 41.64
    acetophenone 415.02
    methyl propionate 675.53
    isopentyl acetate 670.74
    trichloroethylene 1279.5
    n-nonanol 310.33
    cyclohexanol 834.67
    benzyl alcohol 356.66
    2-ethylhexanol 444.46
    isooctanol 299.32
    dipropyl ether 580.75
    1,2-dichlorobenzene 518.63
    ethyl lactate 196.36
    propylene carbonate 582.04
    n-methylformamide 461.87
    2-pentanol 658.24
    n-pentane 265.64
    1-propoxy-2-propanol 714.96
    1-methoxy-2-propyl acetate 685.73
    2-(2-methoxypropoxy) propanol 400.58
    mesitylene 418.14
    ε-caprolactone 936.67
    p-cymene 231.98
    epichlorohydrin 1144.99
    1,1,1-trichloroethane 1018.59
    2-aminoethanol 256.03
    morpholine-4-carbaldehyde 898.1
    sulfolane 778.82
    2,2,4-trimethylpentane 108.62
    2-methyltetrahydrofuran 1611.26
    n-hexyl acetate 640.51
    isooctane 105.28
    2-(2-butoxyethoxy)ethanol 562.59
    sec-butyl acetate 378.15
    tert-butyl acetate 727.88
    decalin 140.45
    glycerin 235.18
    diglyme 1055.21
    acrylic acid 274.61
    isopropyl myristate 231.04
    n-butyric acid 677.9
    acetyl acetate 508.47
    di(2-ethylhexyl) phthalate 194.81
    ethyl propionate 409.4
    nitromethane 596.73
    1,2-diethoxyethane 650.23
    benzonitrile 541.06
    trioctyl phosphate 160.87
    1-bromopropane 863.48
    gamma-valerolactone 1394.78
    n-decanol 211.35
    triethyl phosphate 187.26
    4-methyl-2-pentanol 448.18
    propionitrile 914.22
    vinylene carbonate 548.86
    1,1,2-trichlorotrifluoroethane 589.57
    DMS 442.24
    cumene 257.8
    2-octanol 249.77
    2-hexanone 468.94
    octyl acetate 279.7
    limonene 331.56
    1,2-dimethoxyethane 937.28
    ethyl orthosilicate 195.9
    tributyl phosphate 183.81
    diacetone alcohol 579.64
    N,N-dimethylaniline 360.52
    acrylonitrile 757.22
    aniline 764.0
    1,3-propanediol 471.26
    bromobenzene 800.19
    dibromomethane 952.51
    1,1,2,2-tetrachloroethane 1110.02
    2-methyl-cyclohexyl acetate 332.84
    tetrabutyl urea 214.35
    diisobutyl methanol 257.03
    2-phenylethanol 486.07
    styrene 430.34
    dioctyl adipate 249.59
    dimethyl sulfate 369.9
    ethyl butyrate 409.02
    methyl lactate 294.67
    butyl lactate 304.28
    diethyl carbonate 270.28
    propanediol butyl ether 426.09
    triethyl orthoformate 310.06
    p-tert-butyltoluene 256.71
    methyl 4-tert-butylbenzoate 403.44
    morpholine 1706.68
    tert-butylamine 801.46
    n-dodecanol 152.65
    dimethoxymethane 1018.45
    ethylene carbonate 549.46
    cyrene 300.21
    2-ethoxyethyl acetate 548.86
    2-ethylhexyl acetate 525.84
    1,2,4-trichlorobenzene 584.24
    4-methylpyridine 1227.88
    dibutyl ether 418.73
    2,6-dimethyl-4-heptanol 257.03
    DEF 684.04
    dimethyl isosorbide 623.15
    tetrachloroethylene 717.96
    eugenol 348.37
    triacetin 443.14
    span 80 371.25
    1,4-butanediol 130.02
    1,1-dichloroethane 1084.83
    2-methyl-1-pentanol 381.74
    methyl formate 341.18
    2-methyl-1-butanol 736.87
    n-decane 68.86
    butyronitrile 944.89
    3,7-dimethyl-1-octanol 347.13
    1-chlorooctane 259.93
    1-chlorotetradecane 93.61
    n-nonane 68.13
    undecane 46.91
    tert-butylcyclohexane 131.03
    cyclooctane 161.28
    cyclopentanol 730.03
    tetrahydropyran 2100.98
    tert-amyl methyl ether 716.65
    2,5,8-trioxanonane 588.33
    1-hexene 525.83
    2-isopropoxyethanol 346.85
    2,2,2-trifluoroethanol 156.69
    methyl butyrate 472.28

    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
Amyris 1 8015-65-4 Amyris balsamifera L., fam. Rutaceae 0.7%
Inula verbascifolia ssp. methanea Inula verbascifolia ssp methanea (Hausskn.) Turin, fam. Asteraceae 0.01%
Argyranthemum adauctum ssp. adauctum Argyranthemum adauctum ssp.adauctum Humphries, fam.Asteraceae (Compositae) 0.6%