4-Nonyne

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  • Identifiers

    CAS number
    20184-91-2

    Molecular formula
    C9H16

    SMILES
    CCCCC#CCCC

    Safety labels

    Flammable
    Flammable

    Health Hazard
    Health

  • Odor profile

    Fragrance
    Green 81.56%
    Sweet 36.5%
    Fruity 34.21%
    Vegetable 32.85%
    Fresh 30.37%
    Fatty 30.31%
    Leafy 29.08%
    Metallic 27.34%
    Floral 25.95%
    Gassy 23.29%

     

    Flavor
    Skunky 19.85%
    Delicate 19.62%
    Glue 19.6%
    Bloody 19.51%
    Violet-leaf 19.33%
    Oriental 19.16%
    Diterpene 19.12%
    Low 19.06%
    Nitrile 18.87%
    Terpentine 18.69%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    3.9

    pKa est.
    7.59 (neutral)

    Molecular weight
    124.22 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point est.
    151°C

    Flash point

    • 37.51 ˚C est.

  • Synonyms

    • 4-Nonyne
    • 20184-91-2
    • non-4-yne
    • 4-C9H16
    • MFCD00041650
    • Butylpropylacetylene
    • SCHEMBL56364
    • SCHEMBL291312
    • SCHEMBL291818
    • SCHEMBL2121114
    • SCHEMBL2123323
    • SCHEMBL5166944
    • SCHEMBL5166947
    • SCHEMBL5855708
    • DTXSID20174015
    • AKOS015842884
    • N0378
    • 20184-91-2

  • Applications

    4-Nonyne, CAS 20184-91-2, is primarily used as a nonpolar solvent and processing medium in industrial manufacturing. It also serves as an intermediate or building block in the synthesis of specialty chemicals and polymers. In coatings, inks, and UV-curable formulations, it can function as a reactive diluent or solvent to adjust viscosity and flow. It may be employed as a precursor in chemical syntheses for alkyne-containing motifs and other specialty products. In cleaning applications, it can act as a degreasing solvent for metal parts and equipment. Its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 11614.93
    methanol 7502.3
    isopropanol 11208.56
    water 0.14
    ethyl acetate 13736.24
    n-propanol 10416.67
    acetone 18093.84
    n-butanol 12446.5
    acetonitrile 10876.14
    DMF 9005.82
    toluene 5769.04
    isobutanol 8465.43
    1,4-dioxane 14830.82
    methyl acetate 8613.19
    THF 21463.28
    2-butanone 11897.82
    n-pentanol 7251.96
    sec-butanol 9497.02
    n-hexane 13158.29
    ethylene glycol 934.45
    NMP 5026.53
    cyclohexane 15692.54
    DMSO 10570.3
    n-butyl acetate 20825.58
    n-octanol 4586.85
    chloroform 19874.98
    n-propyl acetate 8833.29
    acetic acid 6209.72
    dichloromethane 19093.58
    cyclohexanone 17169.55
    propylene glycol 1733.3
    isopropyl acetate 7104.74
    DMAc 3951.93
    2-ethoxyethanol 5075.18
    isopentanol 9280.17
    n-heptane 13522.25
    ethyl formate 6532.69
    1,2-dichloroethane 13090.16
    n-hexanol 15174.58
    2-methoxyethanol 8337.97
    isobutyl acetate 4412.68
    tetrachloromethane 5888.44
    n-pentyl acetate 6258.67
    transcutol 13555.15
    n-heptanol 4125.32
    ethylbenzene 2993.96
    MIBK 5605.81
    2-propoxyethanol 10220.39
    tert-butanol 11834.44
    MTBE 12583.5
    2-butoxyethanol 4413.12
    propionic acid 5877.19
    o-xylene 2341.94
    formic acid 648.06
    diethyl ether 20360.44
    m-xylene 3021.71
    p-xylene 3587.83
    chlorobenzene 6138.64
    dimethyl carbonate 1701.12
    n-octane 2869.51
    formamide 1197.45
    cyclopentanone 13376.95
    2-pentanone 13032.74
    anisole 3633.61
    cyclopentyl methyl ether 11942.73
    gamma-butyrolactone 10323.99
    1-methoxy-2-propanol 6744.62
    pyridine 11754.82
    3-pentanone 7769.01
    furfural 6407.87
    n-dodecane 992.59
    diethylene glycol 3608.96
    diisopropyl ether 5644.42
    tert-amyl alcohol 8271.15
    acetylacetone 7485.03
    n-hexadecane 1176.64
    acetophenone 2766.95
    methyl propionate 6900.81
    isopentyl acetate 11877.78
    trichloroethylene 17659.44
    n-nonanol 3412.32
    cyclohexanol 11368.04
    benzyl alcohol 2524.91
    2-ethylhexanol 10463.37
    isooctanol 2922.74
    dipropyl ether 21209.47
    1,2-dichlorobenzene 4346.82
    ethyl lactate 1688.3
    propylene carbonate 5885.79
    n-methylformamide 3931.08
    2-pentanol 9339.98
    n-pentane 9312.24
    1-propoxy-2-propanol 10524.42
    1-methoxy-2-propyl acetate 6352.42
    2-(2-methoxypropoxy) propanol 2136.81
    mesitylene 1919.47
    ε-caprolactone 11025.7
    p-cymene 2718.89
    epichlorohydrin 10912.87
    1,1,1-trichloroethane 14345.15
    2-aminoethanol 2379.07
    morpholine-4-carbaldehyde 5916.04
    sulfolane 9099.45
    2,2,4-trimethylpentane 1599.76
    2-methyltetrahydrofuran 18637.33
    n-hexyl acetate 7530.76
    isooctane 1730.08
    2-(2-butoxyethoxy)ethanol 3805.63
    sec-butyl acetate 4475.9
    tert-butyl acetate 5853.76
    decalin 2691.91
    glycerin 1591.28
    diglyme 8525.36
    acrylic acid 3545.52
    isopropyl myristate 2316.91
    n-butyric acid 12811.51
    acetyl acetate 4907.63
    di(2-ethylhexyl) phthalate 1177.79
    ethyl propionate 6087.74
    nitromethane 8215.86
    1,2-diethoxyethane 11907.4
    benzonitrile 4977.51
    trioctyl phosphate 1222.66
    1-bromopropane 16512.82
    gamma-valerolactone 11408.46
    n-decanol 2264.46
    triethyl phosphate 1979.03
    4-methyl-2-pentanol 3661.53
    propionitrile 10186.37
    vinylene carbonate 4912.04
    1,1,2-trichlorotrifluoroethane 6105.05
    DMS 2643.08
    cumene 1634.4
    2-octanol 3114.55
    2-hexanone 9735.92
    octyl acetate 2586.02
    limonene 6116.97
    1,2-dimethoxyethane 12202.21
    ethyl orthosilicate 2329.24
    tributyl phosphate 1717.18
    diacetone alcohol 4290.4
    N,N-dimethylaniline 2151.12
    acrylonitrile 7752.1
    aniline 4516.57
    1,3-propanediol 4475.22
    bromobenzene 7298.31
    dibromomethane 17066.68
    1,1,2,2-tetrachloroethane 14338.93
    2-methyl-cyclohexyl acetate 3986.48
    tetrabutyl urea 2129.86
    diisobutyl methanol 4535.74
    2-phenylethanol 3471.42
    styrene 4141.79
    dioctyl adipate 2518.56
    dimethyl sulfate 1894.05
    ethyl butyrate 11014.66
    methyl lactate 1745.94
    butyl lactate 3106.44
    diethyl carbonate 4638.45
    propanediol butyl ether 3002.08
    triethyl orthoformate 5802.21
    p-tert-butyltoluene 2577.39
    methyl 4-tert-butylbenzoate 1844.65
    morpholine 17401.92
    tert-butylamine 10546.54
    n-dodecanol 1695.32
    dimethoxymethane 6938.24
    ethylene carbonate 5253.04
    cyrene 1290.89
    2-ethoxyethyl acetate 5053.47
    2-ethylhexyl acetate 10114.58
    1,2,4-trichlorobenzene 3885.99
    4-methylpyridine 10687.57
    dibutyl ether 12242.37
    2,6-dimethyl-4-heptanol 4535.74
    DEF 9192.59
    dimethyl isosorbide 3281.43
    tetrachloroethylene 10541.72
    eugenol 1683.23
    triacetin 3033.51
    span 80 2922.87
    1,4-butanediol 1610.99
    1,1-dichloroethane 16102.84
    2-methyl-1-pentanol 5288.26
    methyl formate 3110.83
    2-methyl-1-butanol 7953.64
    n-decane 2282.16
    butyronitrile 15593.44
    3,7-dimethyl-1-octanol 3890.86
    1-chlorooctane 4660.96
    1-chlorotetradecane 1410.06
    n-nonane 3167.21
    undecane 1414.29
    tert-butylcyclohexane 2381.79
    cyclooctane 4350.98
    cyclopentanol 9588.2
    tetrahydropyran 26885.38
    tert-amyl methyl ether 7236.28
    2,5,8-trioxanonane 3809.22
    1-hexene 20100.96
    2-isopropoxyethanol 3549.33
    2,2,2-trifluoroethanol 998.86
    methyl butyrate 9109.41

    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