Cyclopentane, (2-hexyloctyl)-

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  • Identifiers

    CAS number
    55044-77-4

    Molecular formula
    C19H38

    SMILES
    CCCCCCC(CCCCCC)CC1CCCC1

    Safety labels

  • Odor profile

    Fragrance
    Waxy 69.24%
    Fatty 39.39%
    Oily 35.98%
    Sweet 22.08%
    Gassy 21.08%
    Fishy 19.25%
    Meaty 18.81%
    Clean 16.7%
    Fresh 16.6%
    Balsamic 16.46%

     

    Flavor
    Alkane 40.38%
    Waxy 38.94%
    Bland 23.5%
    Mild 22.04%
    Slightly waxy 20.99%
    Delicate 20.97%
    Diterpene 19.85%
    Low 19.58%
    Faint 19.43%
    Incense 19.1%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    9.7

    pKa est.
    8.46 (weak base)

    Molecular weight
    266.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    334°C

    Flash point

    • 141.27 ˚C est.

  • Synonyms

    • Cyclopentane, (2-hexyloctyl)-
    • 1-Cyclopentyl-2-n-hexyloctane
    • 55044-77-4
    • DTXSID90306285
    • RefChem:129838
    • DTXCID20257413
    • XANJIFLJGFYUDD-UHFFFAOYSA-N
    • (2-Hexyloctyl)cyclopentane
    • NSC174943
    • 7-cyclopentylmethyl-tridecane
    • (2-Hexyloctyl)cyclopentane #
    • NSC-174943
    • DB-309736
    • 55044-77-4

  • Applications

    Cyclopentane, (2-hexyloctyl)- (CAS 55044-77-4) is a nonpolar hydrocarbon bearing a long alkyl substituent, used primarily as a nonpolar solvent and diluent in technical formulations. It is commonly employed as a solvent for polymer and coating systems to dissolve nonpolar components and to improve processability. It can also function as a plasticizer in plastics and coatings, enhancing flexibility and film performance. Its hydrophobic character makes it suitable as a fragrance carrier or fixative in fragrance and cosmetic formulations, as well as a solvent in cleaning formulations and industrial coatings. In some routes, it may serve as an intermediate in chemical synthesis or as a processing solvent, depending on local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1119.45
    methanol 291.16
    isopropanol 1932.09
    water 0.01
    ethyl acetate 7909.3
    n-propanol 1708.86
    acetone 5528.69
    n-butanol 2700.92
    acetonitrile 1085.18
    DMF 1682.14
    toluene 4721.39
    isobutanol 1912.36
    1,4-dioxane 8247.33
    methyl acetate 3075.52
    THF 15440.38
    2-butanone 5549.34
    n-pentanol 1788.28
    sec-butanol 2408.72
    n-hexane 6396.4
    ethylene glycol 28.69
    NMP 2595.7
    cyclohexane 14471.42
    DMSO 2069.82
    n-butyl acetate 14394.24
    n-octanol 1826.81
    chloroform 7324.11
    n-propyl acetate 5689.3
    acetic acid 538.11
    dichloromethane 7325.45
    cyclohexanone 10901.74
    propylene glycol 124.42
    isopropyl acetate 8830.39
    DMAc 2291.36
    2-ethoxyethanol 1454.03
    isopentanol 3852.69
    n-heptane 9614.61
    ethyl formate 1498.36
    1,2-dichloroethane 7056.05
    n-hexanol 4013.51
    2-methoxyethanol 1557.43
    isobutyl acetate 5100.89
    tetrachloromethane 2871.42
    n-pentyl acetate 6014.82
    transcutol 8891.21
    n-heptanol 1916.09
    ethylbenzene 2440.0
    MIBK 6790.36
    2-propoxyethanol 3466.49
    tert-butanol 4372.57
    MTBE 12987.99
    2-butoxyethanol 2342.24
    propionic acid 819.29
    o-xylene 2715.92
    formic acid 25.0
    diethyl ether 13599.81
    m-xylene 3012.11
    p-xylene 3050.47
    chlorobenzene 3596.13
    dimethyl carbonate 883.54
    n-octane 2256.92
    formamide 61.45
    cyclopentanone 8181.65
    2-pentanone 8048.89
    anisole 3201.55
    cyclopentyl methyl ether 11274.1
    gamma-butyrolactone 4972.61
    1-methoxy-2-propanol 2229.6
    pyridine 5164.51
    3-pentanone 5859.67
    furfural 2400.56
    n-dodecane 878.13
    diethylene glycol 690.32
    diisopropyl ether 8380.26
    tert-amyl alcohol 3748.64
    acetylacetone 6025.65
    n-hexadecane 1079.08
    acetophenone 2357.06
    methyl propionate 3484.47
    isopentyl acetate 13929.27
    trichloroethylene 7577.15
    n-nonanol 1961.14
    cyclohexanol 4616.74
    benzyl alcohol 1102.84
    2-ethylhexanol 5624.23
    isooctanol 2368.26
    dipropyl ether 19879.39
    1,2-dichlorobenzene 3279.11
    ethyl lactate 967.03
    propylene carbonate 3425.98
    n-methylformamide 410.09
    2-pentanol 3376.04
    n-pentane 4643.3
    1-propoxy-2-propanol 5530.04
    1-methoxy-2-propyl acetate 7770.59
    2-(2-methoxypropoxy) propanol 2075.25
    mesitylene 2731.45
    ε-caprolactone 7441.37
    p-cymene 3058.54
    epichlorohydrin 6586.58
    1,1,1-trichloroethane 9346.05
    2-aminoethanol 150.41
    morpholine-4-carbaldehyde 2915.63
    sulfolane 4993.85
    2,2,4-trimethylpentane 1919.82
    2-methyltetrahydrofuran 14518.2
    n-hexyl acetate 6022.01
    isooctane 1992.68
    2-(2-butoxyethoxy)ethanol 2888.0
    sec-butyl acetate 6129.71
    tert-butyl acetate 11679.78
    decalin 3177.05
    glycerin 145.94
    diglyme 7253.35
    acrylic acid 351.76
    isopropyl myristate 3458.6
    n-butyric acid 3162.68
    acetyl acetate 3730.14
    di(2-ethylhexyl) phthalate 1092.33
    ethyl propionate 5414.9
    nitromethane 1202.58
    1,2-diethoxyethane 12749.35
    benzonitrile 1817.05
    trioctyl phosphate 1169.01
    1-bromopropane 9592.16
    gamma-valerolactone 6525.64
    n-decanol 1450.05
    triethyl phosphate 3033.89
    4-methyl-2-pentanol 2791.52
    propionitrile 2028.11
    vinylene carbonate 1911.85
    1,1,2-trichlorotrifluoroethane 2225.71
    DMS 2285.82
    cumene 1831.04
    2-octanol 1791.31
    2-hexanone 5837.49
    octyl acetate 3012.19
    limonene 7024.47
    1,2-dimethoxyethane 6458.08
    ethyl orthosilicate 3589.77
    tributyl phosphate 1629.96
    diacetone alcohol 4559.74
    N,N-dimethylaniline 2263.31
    acrylonitrile 1112.78
    aniline 2410.87
    1,3-propanediol 563.86
    bromobenzene 4907.28
    dibromomethane 6881.63
    1,1,2,2-tetrachloroethane 7875.24
    2-methyl-cyclohexyl acetate 5718.02
    tetrabutyl urea 2140.97
    diisobutyl methanol 4682.98
    2-phenylethanol 1850.81
    styrene 2732.56
    dioctyl adipate 3148.95
    dimethyl sulfate 1117.94
    ethyl butyrate 11992.07
    methyl lactate 679.85
    butyl lactate 2149.18
    diethyl carbonate 5267.58
    propanediol butyl ether 1039.99
    triethyl orthoformate 8145.52
    p-tert-butyltoluene 3163.79
    methyl 4-tert-butylbenzoate 2637.37
    morpholine 8336.59
    tert-butylamine 4704.02
    n-dodecanol 1202.15
    dimethoxymethane 3338.74
    ethylene carbonate 2685.74
    cyrene 1046.98
    2-ethoxyethyl acetate 4824.88
    2-ethylhexyl acetate 11904.06
    1,2,4-trichlorobenzene 3302.49
    4-methylpyridine 5231.82
    dibutyl ether 11749.64
    2,6-dimethyl-4-heptanol 4682.98
    DEF 5640.87
    dimethyl isosorbide 4021.31
    tetrachloroethylene 4461.53
    eugenol 1367.53
    triacetin 3371.74
    span 80 1926.93
    1,4-butanediol 188.72
    1,1-dichloroethane 7347.79
    2-methyl-1-pentanol 2448.88
    methyl formate 356.95
    2-methyl-1-butanol 2891.33
    n-decane 1912.79
    butyronitrile 3681.68
    3,7-dimethyl-1-octanol 3311.82
    1-chlorooctane 4231.63
    1-chlorotetradecane 1551.82
    n-nonane 2181.73
    undecane 1212.6
    tert-butylcyclohexane 2666.06
    cyclooctane 5080.06
    cyclopentanol 2978.17
    tetrahydropyran 19163.76
    tert-amyl methyl ether 8259.01
    2,5,8-trioxanonane 3677.77
    1-hexene 8165.39
    2-isopropoxyethanol 1774.53
    2,2,2-trifluoroethanol 158.58
    methyl butyrate 6123.65

    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