Cyclooctanol

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  • Identifiers

    CAS number
    696-71-9

    Molecular formula
    C8H16O

    SMILES
    C1CCCC(CCC1)O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Camphoreous 54.13%
    Mint 54.09%
    Woody 49.65%
    Solvent 46.58%
    Fermented 45.89%
    Animal 36.82%
    Musty 36.78%
    Oily 36.55%
    Earthy 34.71%
    Musk 32.75%

     

    Flavor
    Camphor 34.03%
    Animal 30.05%
    Minty 27.78%
    Phenol 26.58%
    Menthol 22.5%
    Ammoniacal 22.31%
    Beet 21.94%
    Soil 21.8%
    Alkaline 21.77%
    Shrimp 21.7%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    1.6

    pKa est.
    9.66 (weak base)

    Molecular weight
    128.21 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    202°C

    Flash point

    • 86.49 ˚C est.

  • Synonyms

    • CYCLOOCTANOL
    • 696-71-9
    • N948SW87NY
    • NSC-60162
    • DTXSID80219875
    • RefChem:129807
    • DTXCID30142366
    • 211-800-6
    • Cyclooctyl alcohol
    • MFCD00001744
    • EINECS 211-800-6
    • NSC 60162
    • UNII-N948SW87NY
    • SCHEMBL40903
    • SCHEMBL102554
    • CHEMBL457729
    • SCHEMBL1266528
    • SCHEMBL1378195
    • SCHEMBL2535651
    • SCHEMBL2537154
    • SCHEMBL2538037
    • BDBM36194
    • FHADSMKORVFYOS-UHFFFAOYSA-
    • AAA69671
    • NSC60162
    • SBB058905
    • AKOS000119175
    • EBC-618168
    • MSK170701-100M
    • AS-56409
    • SY048785
    • CS-0204887
    • Cyclooctanol Solution in Methanol, 100ug/mL
    • NS00036914
    • ST51040589
    • EN300-19101
    • D89280
    • Q2577904
    • Z104472780
    • InChI=1/C8H16O/c9-8-6-4-2-1-3-5-7-8/h8-9H,1-7H2
    • 696-71-9

  • Applications

    Cyclooctanol (CAS 696-71-9) is primarily used as a chemical intermediate in fragrance chemistry and as a precursor to cyclooctane-derived compounds such as cyclooctanone, enabling further synthesis of musk-like fragrances. In industrial manufacturing it may serve as a specialty solvent or reactive intermediate for organic syntheses. It can act as a building block in polymers and plastics chemistry for cycloalkane-containing monomers or crosslinkers. It is sometimes employed in coatings and inks formulations as a solvent or formulation component, and may be evaluated for use in cosmetics/personal care formulations under regulatory controls.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1715.54
    methanol 1817.22
    isopropanol 1647.07
    water 0.52
    ethyl acetate 912.01
    n-propanol 1610.49
    acetone 1373.6
    n-butanol 1403.02
    acetonitrile 948.24
    DMF 1145.01
    toluene 393.51
    isobutanol 1098.11
    1,4-dioxane 1882.14
    methyl acetate 816.24
    THF 2999.79
    2-butanone 1058.95
    n-pentanol 727.27
    sec-butanol 1114.16
    n-hexane 454.52
    ethylene glycol 210.25
    NMP 1151.99
    cyclohexane 546.09
    DMSO 1729.21
    n-butyl acetate 1043.67
    n-octanol 404.15
    chloroform 2586.68
    n-propyl acetate 631.11
    acetic acid 778.37
    dichloromethane 1916.15
    cyclohexanone 1561.13
    propylene glycol 349.37
    isopropyl acetate 555.97
    DMAc 491.36
    2-ethoxyethanol 678.02
    isopentanol 914.35
    n-heptane 382.07
    ethyl formate 585.19
    1,2-dichloroethane 1191.58
    n-hexanol 1053.22
    2-methoxyethanol 1247.94
    isobutyl acetate 409.03
    tetrachloromethane 582.56
    n-pentyl acetate 573.35
    transcutol 1679.68
    n-heptanol 456.4
    ethylbenzene 195.56
    MIBK 500.49
    2-propoxyethanol 1210.44
    tert-butanol 1378.01
    MTBE 936.18
    2-butoxyethanol 667.45
    propionic acid 967.81
    o-xylene 216.12
    formic acid 185.3
    diethyl ether 1342.91
    m-xylene 255.91
    p-xylene 252.78
    chlorobenzene 658.22
    dimethyl carbonate 162.04
    n-octane 121.01
    formamide 257.0
    cyclopentanone 1867.12
    2-pentanone 934.61
    anisole 338.28
    cyclopentyl methyl ether 1169.54
    gamma-butyrolactone 1920.88
    1-methoxy-2-propanol 994.23
    pyridine 1286.91
    3-pentanone 599.54
    furfural 1194.07
    n-dodecane 62.26
    diethylene glycol 630.84
    diisopropyl ether 343.63
    tert-amyl alcohol 843.8
    acetylacetone 642.15
    n-hexadecane 71.27
    acetophenone 302.38
    methyl propionate 620.82
    isopentyl acetate 728.79
    trichloroethylene 1749.75
    n-nonanol 346.32
    cyclohexanol 1041.35
    benzyl alcohol 298.78
    2-ethylhexanol 578.15
    isooctanol 364.6
    dipropyl ether 1106.71
    1,2-dichlorobenzene 518.09
    ethyl lactate 232.84
    propylene carbonate 934.89
    n-methylformamide 790.85
    2-pentanol 852.28
    n-pentane 378.09
    1-propoxy-2-propanol 1039.13
    1-methoxy-2-propyl acetate 578.98
    2-(2-methoxypropoxy) propanol 331.74
    mesitylene 178.88
    ε-caprolactone 1174.94
    p-cymene 187.09
    epichlorohydrin 1556.46
    1,1,1-trichloroethane 1176.93
    2-aminoethanol 577.24
    morpholine-4-carbaldehyde 957.18
    sulfolane 1920.21
    2,2,4-trimethylpentane 100.4
    2-methyltetrahydrofuran 1872.39
    n-hexyl acetate 627.62
    isooctane 100.29
    2-(2-butoxyethoxy)ethanol 579.34
    sec-butyl acetate 370.95
    tert-butyl acetate 547.7
    decalin 136.64
    glycerin 404.36
    diglyme 1085.05
    acrylic acid 628.37
    isopropyl myristate 237.83
    n-butyric acid 1326.8
    acetyl acetate 432.61
    di(2-ethylhexyl) phthalate 168.0
    ethyl propionate 471.61
    nitromethane 1038.54
    1,2-diethoxyethane 870.78
    benzonitrile 550.72
    trioctyl phosphate 167.06
    1-bromopropane 1180.77
    gamma-valerolactone 1705.26
    n-decanol 247.19
    triethyl phosphate 190.56
    4-methyl-2-pentanol 388.23
    propionitrile 1153.74
    vinylene carbonate 752.92
    1,1,2-trichlorotrifluoroethane 870.36
    DMS 294.66
    cumene 138.68
    2-octanol 313.88
    2-hexanone 685.47
    octyl acetate 281.91
    limonene 342.56
    1,2-dimethoxyethane 1088.08
    ethyl orthosilicate 201.3
    tributyl phosphate 205.99
    diacetone alcohol 567.42
    N,N-dimethylaniline 209.04
    acrylonitrile 1068.94
    aniline 539.31
    1,3-propanediol 858.38
    bromobenzene 666.56
    dibromomethane 1663.76
    1,1,2,2-tetrachloroethane 1578.22
    2-methyl-cyclohexyl acetate 356.87
    tetrabutyl urea 246.22
    diisobutyl methanol 337.81
    2-phenylethanol 369.34
    styrene 269.05
    dioctyl adipate 267.84
    dimethyl sulfate 257.31
    ethyl butyrate 648.77
    methyl lactate 293.01
    butyl lactate 387.39
    diethyl carbonate 325.93
    propanediol butyl ether 507.86
    triethyl orthoformate 395.39
    p-tert-butyltoluene 180.31
    methyl 4-tert-butylbenzoate 307.39
    morpholine 2035.4
    tert-butylamine 991.04
    n-dodecanol 187.24
    dimethoxymethane 732.1
    ethylene carbonate 741.18
    cyrene 275.2
    2-ethoxyethyl acetate 499.36
    2-ethylhexyl acetate 577.11
    1,2,4-trichlorobenzene 541.45
    4-methylpyridine 962.36
    dibutyl ether 684.39
    2,6-dimethyl-4-heptanol 337.81
    DEF 786.08
    dimethyl isosorbide 567.15
    tetrachloroethylene 1177.07
    eugenol 276.69
    triacetin 373.03
    span 80 416.02
    1,4-butanediol 283.94
    1,1-dichloroethane 1469.67
    2-methyl-1-pentanol 470.87
    methyl formate 450.14
    2-methyl-1-butanol 824.22
    n-decane 120.87
    butyronitrile 1262.29
    3,7-dimethyl-1-octanol 392.94
    1-chlorooctane 342.81
    1-chlorotetradecane 123.85
    n-nonane 136.55
    undecane 81.44
    tert-butylcyclohexane 131.63
    cyclooctane 155.61
    cyclopentanol 1359.59
    tetrahydropyran 2327.5
    tert-amyl methyl ether 568.53
    2,5,8-trioxanonane 588.68
    1-hexene 888.62
    2-isopropoxyethanol 481.46
    2,2,2-trifluoroethanol 240.19
    methyl butyrate 663.85

    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