7,9-Dimethylhexadecane

Overview IFRA Request a quote

  • Identifiers

    CAS number
    21164-95-4

    Molecular formula
    C18H38

    SMILES
    CCCCCCCC(C)CC(C)CCCCCC

    Safety labels

  • Odor profile

    Fragrance
    Waxy 66.75%
    Oily 37.57%
    Fatty 29.72%
    Sweet 27.23%
    Gassy 26.43%
    Fresh 22.9%
    Fishy 21.32%
    Green 19.18%
    Citrus 19.05%
    Burnt 19.0%

     

    Flavor
    Alkane 44.2%
    Waxy 34.57%
    Delicate 23.53%
    Bland 22.83%
    Slightly waxy 21.25%
    Mild 20.72%
    Leathery 20.45%
    Skunky 20.29%
    Diterpene 20.11%
    Incense 20.09%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    9.4

    pKa est.
    8.69 (weak base)

    Molecular weight
    254.5 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    296°C

    Flash point

    • 133.15 ˚C est.

  • Synonyms

    • 7,9-Dimethylhexadecane
    • Hexadecane, 7,9-dimethyl-
    • 21164-95-4
    • HEXADECANE,7,9-DIMETHYL-
    • SCHEMBL4276686
    • SCHEMBL4276688
    • DTXSID701357106
    • 21164-95-4

  • Applications

    7,9-Dimethylhexadecane (CAS 21164-95-4) is a branched saturated hydrocarbon typically used as a non-polar solvent and processing diluent in industrial manufacturing, aiding dissolution and formulation of components. It also serves as a component of lubricant base oils and related fluids, contributing to performance characteristics and viscosity. As a solvent or processing aid, it may serve in coatings, inks, and adhesives to adjust flow, evaporation, and film formation. In cosmetics and personal care, it can act as a carrier solvent for fragrance or other active ingredients. Additionally, it can appear in cleaning formulations as a non-polar solvent for specialty cleaners.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1553.25
    methanol 417.78
    isopropanol 2616.35
    water 0.0
    ethyl acetate 8496.72
    n-propanol 2391.78
    acetone 6359.31
    n-butanol 3748.45
    acetonitrile 1245.74
    DMF 2355.6
    toluene 5217.65
    isobutanol 2702.54
    1,4-dioxane 9174.26
    methyl acetate 3642.8
    THF 19897.13
    2-butanone 6790.38
    n-pentanol 2560.53
    sec-butanol 3479.55
    n-hexane 11842.96
    ethylene glycol 27.71
    NMP 3457.63
    cyclohexane 22627.16
    DMSO 2523.03
    n-butyl acetate 19436.4
    n-octanol 2669.7
    chloroform 7519.04
    n-propyl acetate 7314.54
    acetic acid 604.98
    dichloromethane 7403.05
    cyclohexanone 14080.15
    propylene glycol 127.56
    isopropyl acetate 8991.25
    DMAc 2907.4
    2-ethoxyethanol 1770.15
    isopentanol 5058.6
    n-heptane 18366.35
    ethyl formate 1847.02
    1,2-dichloroethane 7471.73
    n-hexanol 6239.13
    2-methoxyethanol 1892.29
    isobutyl acetate 6202.78
    tetrachloromethane 3160.07
    n-pentyl acetate 8035.52
    transcutol 10120.42
    n-heptanol 2886.53
    ethylbenzene 2936.03
    MIBK 7660.92
    2-propoxyethanol 4546.24
    tert-butanol 5920.01
    MTBE 16930.63
    2-butoxyethanol 3115.83
    propionic acid 1006.2
    o-xylene 3208.15
    formic acid 25.61
    diethyl ether 17507.16
    m-xylene 3411.47
    p-xylene 3774.37
    chlorobenzene 3673.88
    dimethyl carbonate 755.21
    n-octane 3877.15
    formamide 65.36
    cyclopentanone 9935.34
    2-pentanone 9873.57
    anisole 3321.03
    cyclopentyl methyl ether 15289.9
    gamma-butyrolactone 5596.3
    1-methoxy-2-propanol 2532.69
    pyridine 5463.28
    3-pentanone 7061.09
    furfural 2496.97
    n-dodecane 1223.67
    diethylene glycol 734.75
    diisopropyl ether 10639.3
    tert-amyl alcohol 5651.08
    acetylacetone 5992.18
    n-hexadecane 1512.84
    acetophenone 2499.81
    methyl propionate 3839.65
    isopentyl acetate 17988.65
    trichloroethylene 7544.21
    n-nonanol 2758.1
    cyclohexanol 6649.28
    benzyl alcohol 1169.26
    2-ethylhexanol 8865.85
    isooctanol 3484.32
    dipropyl ether 30300.62
    1,2-dichlorobenzene 3272.31
    ethyl lactate 999.67
    propylene carbonate 3401.97
    n-methylformamide 557.39
    2-pentanol 4490.1
    n-pentane 7700.54
    1-propoxy-2-propanol 7120.9
    1-methoxy-2-propyl acetate 8346.9
    2-(2-methoxypropoxy) propanol 2267.77
    mesitylene 3097.14
    ε-caprolactone 8859.16
    p-cymene 4072.26
    epichlorohydrin 7318.29
    1,1,1-trichloroethane 10200.3
    2-aminoethanol 163.83
    morpholine-4-carbaldehyde 3456.75
    sulfolane 5687.05
    2,2,4-trimethylpentane 3095.28
    2-methyltetrahydrofuran 18882.95
    n-hexyl acetate 7966.47
    isooctane 2856.97
    2-(2-butoxyethoxy)ethanol 3407.67
    sec-butyl acetate 7240.58
    tert-butyl acetate 12034.49
    decalin 4698.36
    glycerin 142.08
    diglyme 8126.93
    acrylic acid 379.02
    isopropyl myristate 3950.12
    n-butyric acid 3889.56
    acetyl acetate 3434.91
    di(2-ethylhexyl) phthalate 1242.17
    ethyl propionate 6040.97
    nitromethane 1272.32
    1,2-diethoxyethane 15619.69
    benzonitrile 1996.93
    trioctyl phosphate 1473.9
    1-bromopropane 11233.3
    gamma-valerolactone 7450.72
    n-decanol 2015.86
    triethyl phosphate 3394.55
    4-methyl-2-pentanol 3487.1
    propionitrile 2450.43
    vinylene carbonate 1861.92
    1,1,2-trichlorotrifluoroethane 2261.93
    DMS 2317.59
    cumene 2160.36
    2-octanol 2717.19
    2-hexanone 7940.38
    octyl acetate 3616.64
    limonene 10415.33
    1,2-dimethoxyethane 8132.26
    ethyl orthosilicate 4267.37
    tributyl phosphate 2008.52
    diacetone alcohol 5311.79
    N,N-dimethylaniline 2555.34
    acrylonitrile 1284.02
    aniline 2563.39
    1,3-propanediol 618.59
    bromobenzene 4971.77
    dibromomethane 7321.38
    1,1,2,2-tetrachloroethane 8095.64
    2-methyl-cyclohexyl acetate 6868.12
    tetrabutyl urea 2641.31
    diisobutyl methanol 6807.12
    2-phenylethanol 2195.25
    styrene 3100.69
    dioctyl adipate 3518.17
    dimethyl sulfate 1023.82
    ethyl butyrate 14711.13
    methyl lactate 650.9
    butyl lactate 2676.69
    diethyl carbonate 5715.39
    propanediol butyl ether 1297.07
    triethyl orthoformate 10376.49
    p-tert-butyltoluene 4278.37
    methyl 4-tert-butylbenzoate 2815.56
    morpholine 10208.22
    tert-butylamine 6657.89
    n-dodecanol 1659.87
    dimethoxymethane 3629.83
    ethylene carbonate 2534.58
    cyrene 1159.28
    2-ethoxyethyl acetate 5527.71
    2-ethylhexyl acetate 16204.75
    1,2,4-trichlorobenzene 3282.83
    4-methylpyridine 6050.59
    dibutyl ether 17598.39
    2,6-dimethyl-4-heptanol 6807.12
    DEF 7147.93
    dimethyl isosorbide 4370.75
    tetrachloroethylene 4725.55
    eugenol 1525.41
    triacetin 3494.77
    span 80 2300.71
    1,4-butanediol 215.49
    1,1-dichloroethane 7964.69
    2-methyl-1-pentanol 3505.6
    methyl formate 428.92
    2-methyl-1-butanol 4175.21
    n-decane 2956.8
    butyronitrile 4850.49
    3,7-dimethyl-1-octanol 4585.4
    1-chlorooctane 5979.75
    1-chlorotetradecane 1935.72
    n-nonane 3578.4
    undecane 1757.68
    tert-butylcyclohexane 4065.1
    cyclooctane 7911.67
    cyclopentanol 4225.31
    tetrahydropyran 24514.87
    tert-amyl methyl ether 11256.62
    2,5,8-trioxanonane 3885.42
    1-hexene 13580.58
    2-isopropoxyethanol 2116.78
    2,2,2-trifluoroethanol 151.13
    methyl butyrate 7489.82

    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