2-Methylisoborneol

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  • Identifiers

    CAS number
    68330-43-8

    Molecular formula
    C11H20O

    SMILES
    CC1(C2CCC1(C(C2)(C)O)C)C

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Woody 71.73%
    Earthy 60.34%
    Camphoreous 57.07%
    Pine 40.63%
    Musty 40.38%
    Balsamic 39.43%
    Dry 37.77%
    Amber 35.87%
    Herbal 33.98%
    Cedar 33.96%

     

    Flavor
    Woody 73.07%
    Camphor 68.34%
    Herbal 58.37%
    Pine 55.34%
    Sweet 54.53%
    Balsam 43.67%
    Earthy 42.52%
    Dry 38.35%
    Earth 32.22%
    Green 31.53%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.7

    pKa est.
    8.58 (weak base)

    Molecular weight
    168.28 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    225°C

    Melting point expt.

    • 170 °C

    Flash point

    • 68.46 ˚C est.

  • Synonyms

    • 2-METHYLISOBORNEOL
    • 1,2,7,7-Tetramethylbicyclo[2.2.1]heptan-2-ol
    • 2-Bornanol, 2-methyl-
    • CCRIS 6593
    • 68330-43-8
    • Bicyclo(2.2.1)heptan-2-ol, 1,2,7,7-tetramethyl-, exo-
    • 3,4,7,7-tetramethylbicyclo[2.2.1]heptan-3-ol
    • (-)-2-Methyl Isoborneol
    • Bicyclo[2.2.1]heptan-2-ol, 1,2,7,7-tetramethyl-, (1R-exo)-
    • 18680-50-7
    • D43XMP4DNW
    • 1,2,7,7-tetramethylbicyclo(2.2.1)heptan-2-ol
    • 3,4,7,7-tetramethylbicyclo(2.2.1)heptan-3-ol
    • CHEBI:61987
    • DTXSID90940148
    • 2-Methylborneol
    • 1,2,7,7-Tetramethyl-exo-bicycloheptan-2-ol
    • starbld0001530
    • UNII-D43XMP4DNW
    • SCHEMBL50282
    • LFYXNXGVLGKVCJ-UHFFFAOYSA-N
    • DTXCID001513414
    • 2-Norbornanol, 1,2,7,7-tetramethyl-
    • 1,2,7,7-Tetramethylbicyclo[2.2.1]heptan-2-ol #
    • Q1082826
    • (1R,2R)-1,2,7,7-Tetramethylbicyclo[2.2.1]heptan-2-ol

  • Applications

    2-Methylisoborneol (CAS 68330-43-8) is a volatile odorant with a musty, earthy character, best known for contributing undesirable odor in water and aquatic environments. Real-world applications include serving as a target analyte and marker for odor control in water quality management; acting as a reference standard for odor analysis (e.g., GC-MS, GC-O); used as an earthy note reference in fragrance and perfumery; explored in flavor/aroma research to model earthy/mushroom-like notes at trace levels; and considered as a fragrance ingredient or note in cosmetics/personal care formulations, subject to local regulations. These uses reflect its role as an odorant and analytical standard rather than a health or therapeutic agent.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 822.26
    methanol 1180.69
    isopropanol 802.5
    water 46.11
    ethyl acetate 867.63
    n-propanol 752.16
    acetone 959.46
    n-butanol 681.7
    acetonitrile 1074.34
    DMF 1314.86
    toluene 546.34
    isobutanol 582.88
    1,4-dioxane 1945.77
    methyl acetate 846.69
    THF 2569.43
    2-butanone 697.65
    n-pentanol 385.2
    sec-butanol 571.51
    n-hexane 141.56
    ethylene glycol 309.66
    NMP 698.37
    cyclohexane 212.63
    DMSO 678.77
    n-butyl acetate 551.52
    n-octanol 306.24
    chloroform 1748.97
    n-propyl acetate 429.83
    acetic acid 595.79
    dichloromethane 1348.62
    cyclohexanone 779.31
    propylene glycol 358.94
    isopropyl acetate 709.86
    DMAc 769.37
    2-ethoxyethanol 647.59
    isopentanol 589.68
    n-heptane 130.05
    ethyl formate 547.03
    1,2-dichloroethane 838.59
    n-hexanol 624.94
    2-methoxyethanol 1214.11
    isobutyl acetate 356.75
    tetrachloromethane 576.59
    n-pentyl acetate 348.02
    transcutol 1374.33
    n-heptanol 360.47
    ethylbenzene 327.14
    MIBK 573.47
    2-propoxyethanol 1079.11
    tert-butanol 1004.02
    MTBE 937.9
    2-butoxyethanol 603.62
    propionic acid 550.38
    o-xylene 382.47
    formic acid 473.47
    diethyl ether 926.26
    m-xylene 490.05
    p-xylene 481.78
    chlorobenzene 615.86
    dimethyl carbonate 500.3
    n-octane 61.31
    formamide 852.25
    cyclopentanone 1098.49
    2-pentanone 673.67
    anisole 697.88
    cyclopentyl methyl ether 918.33
    gamma-butyrolactone 1271.53
    1-methoxy-2-propanol 1034.74
    pyridine 893.85
    3-pentanone 525.9
    furfural 1001.97
    n-dodecane 42.51
    diethylene glycol 842.21
    diisopropyl ether 456.54
    tert-amyl alcohol 633.48
    acetylacetone 856.4
    n-hexadecane 48.91
    acetophenone 488.43
    methyl propionate 676.07
    isopentyl acetate 532.89
    trichloroethylene 1305.2
    n-nonanol 291.82
    cyclohexanol 520.56
    benzyl alcohol 407.72
    2-ethylhexanol 356.13
    isooctanol 306.4
    dipropyl ether 537.49
    1,2-dichlorobenzene 589.99
    ethyl lactate 251.87
    propylene carbonate 726.94
    n-methylformamide 878.47
    2-pentanol 540.78
    n-pentane 167.91
    1-propoxy-2-propanol 725.45
    1-methoxy-2-propyl acetate 759.73
    2-(2-methoxypropoxy) propanol 472.66
    mesitylene 364.56
    ε-caprolactone 732.68
    p-cymene 248.37
    epichlorohydrin 1329.87
    1,1,1-trichloroethane 1093.3
    2-aminoethanol 565.38
    morpholine-4-carbaldehyde 1072.24
    sulfolane 926.09
    2,2,4-trimethylpentane 95.6
    2-methyltetrahydrofuran 1245.98
    n-hexyl acetate 474.3
    isooctane 109.0
    2-(2-butoxyethoxy)ethanol 618.92
    sec-butyl acetate 391.28
    tert-butyl acetate 843.03
    decalin 129.98
    glycerin 484.41
    diglyme 1151.8
    acrylic acid 472.08
    isopropyl myristate 243.55
    n-butyric acid 648.06
    acetyl acetate 688.18
    di(2-ethylhexyl) phthalate 185.28
    ethyl propionate 469.38
    nitromethane 1199.56
    1,2-diethoxyethane 696.14
    benzonitrile 520.99
    trioctyl phosphate 155.34
    1-bromopropane 589.3
    gamma-valerolactone 1350.09
    n-decanol 216.93
    triethyl phosphate 244.29
    4-methyl-2-pentanol 421.5
    propionitrile 811.29
    vinylene carbonate 691.26
    1,1,2-trichlorotrifluoroethane 802.69
    DMS 490.46
    cumene 269.85
    2-octanol 239.26
    2-hexanone 417.96
    octyl acetate 263.59
    limonene 291.71
    1,2-dimethoxyethane 1087.93
    ethyl orthosilicate 254.77
    tributyl phosphate 183.89
    diacetone alcohol 663.06
    N,N-dimethylaniline 482.58
    acrylonitrile 870.62
    aniline 652.41
    1,3-propanediol 710.49
    bromobenzene 644.77
    dibromomethane 919.4
    1,1,2,2-tetrachloroethane 1087.69
    2-methyl-cyclohexyl acetate 368.97
    tetrabutyl urea 207.41
    diisobutyl methanol 271.87
    2-phenylethanol 559.34
    styrene 367.59
    dioctyl adipate 255.05
    dimethyl sulfate 534.63
    ethyl butyrate 458.23
    methyl lactate 417.35
    butyl lactate 278.78
    diethyl carbonate 340.91
    propanediol butyl ether 408.72
    triethyl orthoformate 370.07
    p-tert-butyltoluene 281.98
    methyl 4-tert-butylbenzoate 495.55
    morpholine 1618.44
    tert-butylamine 797.35
    n-dodecanol 166.98
    dimethoxymethane 1226.81
    ethylene carbonate 658.93
    cyrene 368.71
    2-ethoxyethyl acetate 503.83
    2-ethylhexyl acetate 407.24
    1,2,4-trichlorobenzene 628.8
    4-methylpyridine 836.81
    dibutyl ether 341.46
    2,6-dimethyl-4-heptanol 271.87
    DEF 603.34
    dimethyl isosorbide 819.08
    tetrachloroethylene 840.0
    eugenol 432.41
    triacetin 420.56
    span 80 402.77
    1,4-butanediol 260.54
    1,1-dichloroethane 975.16
    2-methyl-1-pentanol 329.26
    methyl formate 688.33
    2-methyl-1-butanol 494.29
    n-decane 75.32
    butyronitrile 699.44
    3,7-dimethyl-1-octanol 318.71
    1-chlorooctane 209.79
    1-chlorotetradecane 98.62
    n-nonane 70.13
    undecane 54.79
    tert-butylcyclohexane 128.29
    cyclooctane 106.44
    cyclopentanol 647.07
    tetrahydropyran 1281.05
    tert-amyl methyl ether 570.73
    2,5,8-trioxanonane 743.45
    1-hexene 308.76
    2-isopropoxyethanol 468.48
    2,2,2-trifluoroethanol 487.26
    methyl butyrate 479.88

    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