Ethylcyclohexane

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  • Identifiers

    CAS number
    1678-91-7

    Molecular formula
    C8H16

    SMILES
    CCC1CCCCC1

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Health Hazard
    Health

  • Odor profile

    Fragrance
    Sweet 44.8%
    Woody 32.69%
    Dry 31.28%
    Gassy 30.42%
    Citrus 29.85%
    Musk 29.83%
    Amber 27.61%
    Fresh 20.43%
    Clean 20.31%
    Animal 19.72%

     

    Flavor
    Alkane 27.48%
    Old paper 20.08%
    Terpenic 20.02%
    Shrimp 19.91%
    Alkaline 19.89%
    Beet 19.88%
    Soil 19.59%
    Tar 18.86%
    Rotten 18.82%
    Terpentine 18.81%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    4.0

    pKa est.
    9.79 (weak base)

    Molecular weight
    112.21 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Melting point expt.

    • -168 °F (USCG, 1999)

    Boiling point

    • 269 °F at 760 mmHg (USCG, 1999)

    Flash point

    • 18.9 ˚C est.
    • 95 °F (USCG, 1999)

  • Synonyms

    • ETHYLCYCLOHEXANE
    • 1678-91-7
    • Cyclohexane, ethyl-
    • DTXSID1051779
    • SWACLEAN ECH
    • NSC-8880
    • 567IJI1215
    • DTXCID4030334
    • RefChem:5817
    • 216-835-0
    • ethyl-cyclohexane
    • MFCD00001523
    • Ethyl cyclohexane
    • cyclohexylethane
    • NSC 8880
    • EINECS 216-835-0
    • AI3-15348
    • UNII-567IJI1215
    • Ethylcyclohexane, >=99%
    • SCHEMBL4940
    • SCHEMBL4941
    • SCHEMBL5313
    • SCHEMBL42612
    • SCHEMBL42926
    • SCHEMBL43765
    • SCHEMBL61990
    • SCHEMBL73158
    • WLN: L6TJ A2
    • SCHEMBL209316
    • SCHEMBL444741
    • SCHEMBL771799
    • QSPL 100
    • SCHEMBL1251671
    • SCHEMBL4141244
    • SCHEMBL5345214
    • SCHEMBL5352304
    • SCHEMBL6056816
    • SCHEMBL6523224
    • SCHEMBL6566579
    • SCHEMBL9210877
    • CHEMBL1882821
    • SCHEMBL11337402
    • SCHEMBL15844854
    • SCHEMBL15990592
    • SCHEMBL18106222
    • SCHEMBL19030335
    • NSC8880
    • CHEBI:137775
    • Tox21_303745
    • LMFA11000659
    • SBB061162
    • 1-ETHYL-CYCLOHEXANECARBALDEHYDE
    • AKOS015906531
    • NCGC00166032-01
    • NCGC00357050-01
    • LS-13496
    • CAS-1678-91-7
    • E0073
    • NS00019408
    • ST51047216
    • A810916
    • F240973
    • Q21024279
    • InChI=1/C8H16/c1-2-8-6-4-3-5-7-8/h8H,2-7H2,1H
    • Ethylcyclohexane

  • Applications

    Ethylcyclohexane (CAS 1678-91-7) is used primarily as a non-polar solvent and processing aid in various industrial applications. In coatings, inks, and adhesives, it serves as a diluent and carrier for resins and pigments. It is also employed as a chemical intermediate, providing a non-polar medium for certain organic synthesis steps. As a cleaning and degreasing solvent, it supports equipment maintenance and surface preparation. In some cases, it is evaluated as a component in fragrance and flavor solvent systems or as a processing aid in chemical manufacturing, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 959.6
    methanol 431.79
    isopropanol 1156.15
    water 0.02
    ethyl acetate 3148.22
    n-propanol 1248.49
    acetone 2322.05
    n-butanol 1701.16
    acetonitrile 1526.82
    DMF 1116.52
    toluene 2414.12
    isobutanol 1121.67
    1,4-dioxane 3885.41
    methyl acetate 1939.94
    THF 7011.96
    2-butanone 2801.62
    n-pentanol 1026.19
    sec-butanol 1452.89
    n-hexane 2773.17
    ethylene glycol 44.83
    NMP 1488.08
    cyclohexane 3413.26
    DMSO 1453.03
    n-butyl acetate 7813.97
    n-octanol 950.51
    chloroform 5672.31
    n-propyl acetate 2231.66
    acetic acid 465.81
    dichloromethane 4920.16
    cyclohexanone 4392.14
    propylene glycol 136.75
    isopropyl acetate 2385.61
    DMAc 873.61
    2-ethoxyethanol 762.37
    isopentanol 1725.06
    n-heptane 4053.13
    ethyl formate 1060.8
    1,2-dichloroethane 3595.94
    n-hexanol 3185.08
    2-methoxyethanol 1051.73
    isobutyl acetate 1532.06
    tetrachloromethane 1663.94
    n-pentyl acetate 1909.82
    transcutol 3338.83
    n-heptanol 1029.07
    ethylbenzene 1049.17
    MIBK 2057.26
    2-propoxyethanol 2476.85
    tert-butanol 2023.56
    MTBE 3823.15
    2-butoxyethanol 1123.14
    propionic acid 747.36
    o-xylene 1099.61
    formic acid 37.96
    diethyl ether 5194.88
    m-xylene 1317.9
    p-xylene 1180.05
    chlorobenzene 2253.98
    dimethyl carbonate 360.13
    n-octane 934.34
    formamide 75.23
    cyclopentanone 4025.72
    2-pentanone 3050.73
    anisole 1356.04
    cyclopentyl methyl ether 4265.91
    gamma-butyrolactone 3004.25
    1-methoxy-2-propanol 1165.91
    pyridine 3413.5
    3-pentanone 2349.28
    furfural 1791.53
    n-dodecane 419.11
    diethylene glycol 585.58
    diisopropyl ether 2115.67
    tert-amyl alcohol 1732.78
    acetylacetone 1962.93
    n-hexadecane 496.6
    acetophenone 885.01
    methyl propionate 1601.17
    isopentyl acetate 5161.9
    trichloroethylene 4554.37
    n-nonanol 903.49
    cyclohexanol 1949.82
    benzyl alcohol 565.17
    2-ethylhexanol 3218.1
    isooctanol 923.34
    dipropyl ether 7888.02
    1,2-dichlorobenzene 1776.07
    ethyl lactate 408.83
    propylene carbonate 1948.14
    n-methylformamide 436.84
    2-pentanol 1643.52
    n-pentane 2017.5
    1-propoxy-2-propanol 3121.02
    1-methoxy-2-propyl acetate 2694.69
    2-(2-methoxypropoxy) propanol 803.33
    mesitylene 924.27
    ε-caprolactone 3168.22
    p-cymene 1372.19
    epichlorohydrin 3706.7
    1,1,1-trichloroethane 4673.32
    2-aminoethanol 170.31
    morpholine-4-carbaldehyde 1505.63
    sulfolane 2588.25
    2,2,4-trimethylpentane 640.43
    2-methyltetrahydrofuran 6212.29
    n-hexyl acetate 2064.99
    isooctane 686.82
    2-(2-butoxyethoxy)ethanol 1313.61
    sec-butyl acetate 1633.81
    tert-butyl acetate 2659.56
    decalin 960.73
    glycerin 146.39
    diglyme 2648.08
    acrylic acid 391.68
    isopropyl myristate 1099.18
    n-butyric acid 1931.22
    acetyl acetate 1384.77
    di(2-ethylhexyl) phthalate 435.78
    ethyl propionate 1876.35
    nitromethane 915.46
    1,2-diethoxyethane 4393.08
    benzonitrile 1425.83
    trioctyl phosphate 454.52
    1-bromopropane 5357.56
    gamma-valerolactone 3214.23
    n-decanol 699.15
    triethyl phosphate 912.19
    4-methyl-2-pentanol 1087.66
    propionitrile 2207.37
    vinylene carbonate 1365.96
    1,1,2-trichlorotrifluoroethane 1160.02
    DMS 821.95
    cumene 646.01
    2-octanol 781.97
    2-hexanone 2436.0
    octyl acetate 1066.84
    limonene 2839.26
    1,2-dimethoxyethane 2825.41
    ethyl orthosilicate 1046.69
    tributyl phosphate 653.55
    diacetone alcohol 1434.9
    N,N-dimethylaniline 747.97
    acrylonitrile 1577.65
    aniline 1387.95
    1,3-propanediol 427.35
    bromobenzene 3028.86
    dibromomethane 4731.44
    1,1,2,2-tetrachloroethane 3994.42
    2-methyl-cyclohexyl acetate 1855.34
    tetrabutyl urea 793.8
    diisobutyl methanol 1841.65
    2-phenylethanol 1210.73
    styrene 1333.2
    dioctyl adipate 952.58
    dimethyl sulfate 420.46
    ethyl butyrate 4904.65
    methyl lactate 320.14
    butyl lactate 874.0
    diethyl carbonate 1990.42
    propanediol butyl ether 574.46
    triethyl orthoformate 2673.02
    p-tert-butyltoluene 1253.2
    methyl 4-tert-butylbenzoate 781.96
    morpholine 3961.5
    tert-butylamine 2031.42
    n-dodecanol 595.08
    dimethoxymethane 1474.78
    ethylene carbonate 1490.69
    cyrene 476.6
    2-ethoxyethyl acetate 1560.64
    2-ethylhexyl acetate 4511.25
    1,2,4-trichlorobenzene 1635.41
    4-methylpyridine 3199.45
    dibutyl ether 4185.98
    2,6-dimethyl-4-heptanol 1841.65
    DEF 2348.74
    dimethyl isosorbide 1695.69
    tetrachloroethylene 2444.06
    eugenol 588.7
    triacetin 921.98
    span 80 922.26
    1,4-butanediol 130.19
    1,1-dichloroethane 4364.82
    2-methyl-1-pentanol 1070.7
    methyl formate 338.46
    2-methyl-1-butanol 1463.06
    n-decane 807.12
    butyronitrile 2988.39
    3,7-dimethyl-1-octanol 1476.12
    1-chlorooctane 1718.92
    1-chlorotetradecane 635.96
    n-nonane 964.09
    undecane 548.42
    tert-butylcyclohexane 852.86
    cyclooctane 1372.7
    cyclopentanol 1692.26
    tetrahydropyran 7220.89
    tert-amyl methyl ether 2525.91
    2,5,8-trioxanonane 1395.13
    1-hexene 4375.2
    2-isopropoxyethanol 747.7
    2,2,2-trifluoroethanol 112.01
    methyl butyrate 2416.52

    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