Pentyl ether

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  • Identifiers

    CAS number
    693-65-2

    Molecular formula
    C10H22O

    SMILES
    CCCCCOCCCCC

    Safety labels

    Flammable
    Flammable

  • Odor profile

    Fragrance
    Green 87.21%
    Alcoholic 67.85%
    Ethereal 63.94%
    Fermented 60.48%
    Cognac 58.51%
    Oily 51.09%
    Apple 47.98%
    Sweet 47.59%
    Fruity 47.3%
    Herbal 43.38%

     

    Flavor
    Sweet 63.78%
    Fruity 60.15%
    Herbal 57.26%
    Green 49.75%
    Earthy 34.39%
    Spicy 32.61%
    Mushroom 31.89%
    Floral 31.81%
    Oil 31.25%
    Rose 30.32%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    3.7

    pKa est.
    7.69 (neutral)

    Molecular weight
    158.28 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Fast

    Boiling point est.
    188°C

    Flash point

    • 59.26 ˚C est.

  • Synonyms

    • Dipentyl ether
    • Pentyl ether
    • 693-65-2
    • Amyl ether
    • n-Amyl ether
    • Diamyl ether
    • n-Pentyl ether
    • Pentane, 1,1'-oxybis-
    • Pentyloxypentane
    • 1-pentoxypentane
    • Di-n-amyl ether
    • Di-n-pentyl ether
    • Ether, di-n-pentyl-
    • 1,1'-OXYBISPENTANE
    • amyl oxide
    • NSC 6571
    • EINECS 211-756-8
    • UNII-4G19C1NH3E
    • BRN 1698030
    • AI3-02267
    • NSC-6571
    • N-AMYL ETHER [MI]
    • BIS(1-PENTYL) ETHER
    • 4G19C1NH3E
    • DTXSID4022105
    • (n-C5H11)2O
    • 4-01-00-01643 (Beilstein Handbook Reference)
    • 1,1'-oxydipentane
    • 1-(Pentyloxy)pentane
    • MFCD00009501
    • Pentane,1'-oxybis-
    • 1-(Pentyloxy)pentane #
    • SCHEMBL8773
    • DTXCID402105
    • NSC6571
    • Dipentyl ether, >=98.5% (GC)
    • STL453684
    • AKOS015902356
    • LS-13909
    • DB-255932
    • A0451
    • NS00036835
    • Q16070599

  • Applications

    Pentyl ether (CAS 693-65-2) is used primarily as a nonpolar solvent in industrial manufacturing, supporting coatings, inks, and adhesive formulations due to its relatively low polarity and volatility. It also serves as a processing solvent and reaction medium in organic synthesis, facilitating dissolution of reagents and cleanup steps. In perfumery and fragrance applications, it may be employed as a solvent or carrier for aroma compounds. It is sometimes included in cleaning and degreasing formulations for equipment and machinery, and it can function as an intermediate or diluent in chemical syntheses depending on formulation needs.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 3602.74
    methanol 2467.64
    isopropanol 3843.05
    water 0.17
    ethyl acetate 4231.31
    n-propanol 3637.72
    acetone 3746.77
    n-butanol 4505.72
    acetonitrile 2657.98
    DMF 1977.54
    toluene 2453.47
    isobutanol 3067.47
    1,4-dioxane 6071.97
    methyl acetate 2506.64
    THF 7297.66
    2-butanone 3390.84
    n-pentanol 3122.29
    sec-butanol 3887.56
    n-hexane 6702.71
    ethylene glycol 260.27
    NMP 2022.83
    cyclohexane 9344.54
    DMSO 2598.8
    n-butyl acetate 7442.56
    n-octanol 1909.14
    chloroform 12043.25
    n-propyl acetate 3746.29
    acetic acid 2209.9
    dichloromethane 9068.9
    cyclohexanone 6505.98
    propylene glycol 569.96
    isopropyl acetate 2971.32
    DMAc 1451.57
    2-ethoxyethanol 2166.42
    isopentanol 4032.89
    n-heptane 7230.73
    ethyl formate 2057.83
    1,2-dichloroethane 5590.05
    n-hexanol 5582.7
    2-methoxyethanol 2701.9
    isobutyl acetate 2309.29
    tetrachloromethane 3438.02
    n-pentyl acetate 3335.42
    transcutol 6224.53
    n-heptanol 2039.71
    ethylbenzene 1669.51
    MIBK 2130.55
    2-propoxyethanol 3907.57
    tert-butanol 5495.74
    MTBE 5294.2
    2-butoxyethanol 2317.4
    propionic acid 2017.37
    o-xylene 1414.38
    formic acid 281.81
    diethyl ether 6928.74
    m-xylene 1415.17
    p-xylene 2206.79
    chlorobenzene 3278.08
    dimethyl carbonate 443.75
    n-octane 1576.64
    formamide 370.96
    cyclopentanone 4070.42
    2-pentanone 3629.9
    anisole 1930.72
    cyclopentyl methyl ether 4847.07
    gamma-butyrolactone 3490.6
    1-methoxy-2-propanol 2457.49
    pyridine 5067.76
    3-pentanone 2451.57
    furfural 2946.05
    n-dodecane 596.84
    diethylene glycol 1383.66
    diisopropyl ether 2407.14
    tert-amyl alcohol 4386.68
    acetylacetone 2381.39
    n-hexadecane 695.04
    acetophenone 1642.56
    methyl propionate 1920.13
    isopentyl acetate 5389.27
    trichloroethylene 8309.89
    n-nonanol 1713.08
    cyclohexanol 5092.54
    benzyl alcohol 1428.39
    2-ethylhexanol 4902.4
    isooctanol 1859.08
    dipropyl ether 8717.7
    1,2-dichlorobenzene 2727.71
    ethyl lactate 921.49
    propylene carbonate 2538.41
    n-methylformamide 988.56
    2-pentanol 3816.83
    n-pentane 4238.63
    1-propoxy-2-propanol 4592.03
    1-methoxy-2-propyl acetate 2690.34
    2-(2-methoxypropoxy) propanol 1340.42
    mesitylene 1071.21
    ε-caprolactone 5018.31
    p-cymene 1683.82
    epichlorohydrin 4590.08
    1,1,1-trichloroethane 7577.45
    2-aminoethanol 801.55
    morpholine-4-carbaldehyde 2372.02
    sulfolane 3244.35
    2,2,4-trimethylpentane 1012.61
    2-methyltetrahydrofuran 7125.23
    n-hexyl acetate 3472.74
    isooctane 882.42
    2-(2-butoxyethoxy)ethanol 2107.74
    sec-butyl acetate 2568.39
    tert-butyl acetate 2799.7
    decalin 1940.02
    glycerin 563.64
    diglyme 4399.44
    acrylic acid 1265.63
    isopropyl myristate 1391.74
    n-butyric acid 4948.0
    acetyl acetate 2036.66
    di(2-ethylhexyl) phthalate 809.23
    ethyl propionate 2773.92
    nitromethane 2391.28
    1,2-diethoxyethane 5476.88
    benzonitrile 2685.01
    trioctyl phosphate 724.75
    1-bromopropane 7177.1
    gamma-valerolactone 4313.28
    n-decanol 1190.42
    triethyl phosphate 1374.38
    4-methyl-2-pentanol 1945.57
    propionitrile 3221.92
    vinylene carbonate 2137.47
    1,1,2-trichlorotrifluoroethane 3088.86
    DMS 1260.5
    cumene 1137.26
    2-octanol 1651.31
    2-hexanone 3645.64
    octyl acetate 1466.92
    limonene 3307.94
    1,2-dimethoxyethane 5410.01
    ethyl orthosilicate 1686.56
    tributyl phosphate 1067.07
    diacetone alcohol 1911.03
    N,N-dimethylaniline 1307.44
    acrylonitrile 2467.47
    aniline 2167.8
    1,3-propanediol 1550.4
    bromobenzene 3792.8
    dibromomethane 8513.36
    1,1,2,2-tetrachloroethane 7938.7
    2-methyl-cyclohexyl acetate 2584.2
    tetrabutyl urea 1198.16
    diisobutyl methanol 2717.64
    2-phenylethanol 1858.84
    styrene 2176.43
    dioctyl adipate 1633.92
    dimethyl sulfate 562.0
    ethyl butyrate 5179.43
    methyl lactate 637.47
    butyl lactate 1731.95
    diethyl carbonate 2579.89
    propanediol butyl ether 1344.04
    triethyl orthoformate 3643.05
    p-tert-butyltoluene 1596.02
    methyl 4-tert-butylbenzoate 1265.59
    morpholine 6822.97
    tert-butylamine 5131.34
    n-dodecanol 939.18
    dimethoxymethane 1656.04
    ethylene carbonate 2344.2
    cyrene 826.57
    2-ethoxyethyl acetate 2430.56
    2-ethylhexyl acetate 4625.44
    1,2,4-trichlorobenzene 2687.04
    4-methylpyridine 4567.9
    dibutyl ether 6013.65
    2,6-dimethyl-4-heptanol 2717.64
    DEF 3284.96
    dimethyl isosorbide 2072.79
    tetrachloroethylene 5866.34
    eugenol 1096.93
    triacetin 1777.96
    span 80 1827.79
    1,4-butanediol 660.63
    1,1-dichloroethane 7023.95
    2-methyl-1-pentanol 2679.49
    methyl formate 717.03
    2-methyl-1-butanol 3338.46
    n-decane 1289.9
    butyronitrile 4954.37
    3,7-dimethyl-1-octanol 2234.26
    1-chlorooctane 2478.47
    1-chlorotetradecane 861.73
    n-nonane 1583.28
    undecane 812.03
    tert-butylcyclohexane 1626.8
    cyclooctane 2532.05
    cyclopentanol 3966.25
    tetrahydropyran 11024.02
    tert-amyl methyl ether 3379.34
    2,5,8-trioxanonane 2308.23
    1-hexene 8615.12
    2-isopropoxyethanol 1874.81
    2,2,2-trifluoroethanol 488.48
    methyl butyrate 4077.96

    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