2-Methylnonanal

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  • Identifiers

    CAS number
    24424-67-7

    Molecular formula
    C10H20O

    SMILES
    CCCCCCCC(C)C=O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Citrus 80.12%
    Green 70.19%
    Waxy 69.97%
    Fatty 67.02%
    Fresh 65.68%
    Orange 64.02%
    Aldehydic 63.56%
    Fruity 59.2%
    Sweet 58.15%
    Floral 57.56%

     

    Flavor
    Waxy 70.3%
    Citrus 69.29%
    Green 67.25%
    Aldehydic 64.29%
    Fresh 61.39%
    Floral 61.08%
    Fatty 51.0%
    Fat 47.9%
    Orange 47.61%
    Rose 42.02%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    3.8

    pKa est.
    7.87 (neutral)

    Molecular weight
    156.26 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    203°C

    Flash point

    • 75.66 ˚C est.

  • Synonyms

    • 2-methylnonanal
    • 24424-67-7
    • 2-methyl nonanal
    • SCHEMBL111148
    • MNXNDLQGVDOJQY-UHFFFAOYSA-N
    • DTXSID901316962
    • AKOS006292305
    • 899-194-5

  • Applications

    2-Methylnonanal is primarily used as a fragrance ingredient and as an intermediate in the synthesis of aroma compounds. In perfumery, it provides characteristic fruity and aldehydic notes and can serve as a building block for more complex blend components. It is commonly evaluated for flavor and aroma applications, where it can contribute to fruit-like profiles in flavor formulations. In cosmetics and personal care, it is employed as a fragrance constituent in formulations such as lotions, creams, and shampoos, subject to formulation limits. In household products, it can be used as a scent additive to impart fresh, clean notes in cleaners and air fresheners. In industrial manufacturing, it is used as a chemical intermediate for the production of fragrance- and flavor-related chemicals, and may be involved in coatings/inks as a specialty odorant or starting material. Its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 10833.28
    methanol 7977.2
    isopropanol 11941.85
    water 0.09
    ethyl acetate 11852.5
    n-propanol 9690.78
    acetone 15065.06
    n-butanol 9417.16
    acetonitrile 8403.86
    DMF 6128.0
    toluene 2551.43
    isobutanol 7572.43
    1,4-dioxane 8362.12
    methyl acetate 6461.24
    THF 12471.36
    2-butanone 10923.04
    n-pentanol 5795.41
    sec-butanol 8607.59
    n-hexane 4774.2
    ethylene glycol 441.45
    NMP 3359.73
    cyclohexane 3833.79
    DMSO 6567.82
    n-butyl acetate 11650.4
    n-octanol 1945.81
    chloroform 11413.71
    n-propyl acetate 7844.54
    acetic acid 3696.76
    dichloromethane 11220.54
    cyclohexanone 12002.37
    propylene glycol 1158.62
    isopropyl acetate 7067.22
    DMAc 2876.63
    2-ethoxyethanol 4416.97
    isopentanol 8456.82
    n-heptane 2009.32
    ethyl formate 4779.11
    1,2-dichloroethane 9246.76
    n-hexanol 7147.58
    2-methoxyethanol 7153.29
    isobutyl acetate 3959.68
    tetrachloromethane 2760.71
    n-pentyl acetate 4282.87
    transcutol 12207.47
    n-heptanol 2261.74
    ethylbenzene 1671.46
    MIBK 5330.02
    2-propoxyethanol 7060.84
    tert-butanol 12983.85
    MTBE 12179.84
    2-butoxyethanol 3322.56
    propionic acid 4299.13
    o-xylene 1357.3
    formic acid 534.53
    diethyl ether 14068.93
    m-xylene 1755.37
    p-xylene 2052.77
    chlorobenzene 3582.75
    dimethyl carbonate 832.71
    n-octane 571.59
    formamide 1024.06
    cyclopentanone 9254.96
    2-pentanone 11281.88
    anisole 2580.37
    cyclopentyl methyl ether 7798.16
    gamma-butyrolactone 7762.31
    1-methoxy-2-propanol 6377.77
    pyridine 7079.76
    3-pentanone 5669.01
    furfural 4776.01
    n-dodecane 223.99
    diethylene glycol 2464.07
    diisopropyl ether 3870.04
    tert-amyl alcohol 8353.12
    acetylacetone 5894.74
    n-hexadecane 268.12
    acetophenone 2034.59
    methyl propionate 5517.71
    isopentyl acetate 8580.9
    trichloroethylene 12336.37
    n-nonanol 1584.34
    cyclohexanol 7145.2
    benzyl alcohol 1914.78
    2-ethylhexanol 4859.74
    isooctanol 1981.24
    dipropyl ether 8588.78
    1,2-dichlorobenzene 2834.35
    ethyl lactate 1422.94
    propylene carbonate 4175.41
    n-methylformamide 3738.74
    2-pentanol 7388.07
    n-pentane 2535.3
    1-propoxy-2-propanol 7330.35
    1-methoxy-2-propyl acetate 5525.77
    2-(2-methoxypropoxy) propanol 1792.42
    mesitylene 1146.13
    ε-caprolactone 8170.59
    p-cymene 1205.32
    epichlorohydrin 9265.9
    1,1,1-trichloroethane 9412.82
    2-aminoethanol 1814.98
    morpholine-4-carbaldehyde 4241.37
    sulfolane 6110.16
    2,2,4-trimethylpentane 717.02
    2-methyltetrahydrofuran 12325.68
    n-hexyl acetate 4371.09
    isooctane 711.05
    2-(2-butoxyethoxy)ethanol 2926.67
    sec-butyl acetate 4862.12
    tert-butyl acetate 6051.83
    decalin 1011.68
    glycerin 1024.92
    diglyme 5759.5
    acrylic acid 2209.74
    isopropyl myristate 1306.59
    n-butyric acid 10081.96
    acetyl acetate 3350.0
    di(2-ethylhexyl) phthalate 739.51
    ethyl propionate 5633.03
    nitromethane 5779.2
    1,2-diethoxyethane 8620.87
    benzonitrile 3502.7
    trioctyl phosphate 684.61
    1-bromopropane 9119.39
    gamma-valerolactone 9781.26
    n-decanol 1066.11
    triethyl phosphate 1188.87
    4-methyl-2-pentanol 3303.28
    propionitrile 8142.96
    vinylene carbonate 3257.18
    1,1,2-trichlorotrifluoroethane 4224.13
    DMS 1735.58
    cumene 1023.05
    2-octanol 1748.15
    2-hexanone 8098.93
    octyl acetate 1454.96
    limonene 2531.26
    1,2-dimethoxyethane 9619.88
    ethyl orthosilicate 1361.86
    tributyl phosphate 1025.86
    diacetone alcohol 4554.82
    N,N-dimethylaniline 1312.02
    acrylonitrile 6435.44
    aniline 3111.77
    1,3-propanediol 3565.27
    bromobenzene 3832.74
    dibromomethane 9791.15
    1,1,2,2-tetrachloroethane 9199.12
    2-methyl-cyclohexyl acetate 2679.56
    tetrabutyl urea 1117.26
    diisobutyl methanol 2532.93
    2-phenylethanol 2361.41
    styrene 2302.37
    dioctyl adipate 1508.92
    dimethyl sulfate 1049.53
    ethyl butyrate 6726.2
    methyl lactate 1319.5
    butyl lactate 2324.08
    diethyl carbonate 2728.99
    propanediol butyl ether 2097.87
    triethyl orthoformate 3216.87
    p-tert-butyltoluene 1123.58
    methyl 4-tert-butylbenzoate 1386.72
    morpholine 11746.52
    tert-butylamine 9469.21
    n-dodecanol 782.93
    dimethoxymethane 4596.8
    ethylene carbonate 3413.96
    cyrene 1096.51
    2-ethoxyethyl acetate 3825.53
    2-ethylhexyl acetate 6225.52
    1,2,4-trichlorobenzene 2786.39
    4-methylpyridine 7517.87
    dibutyl ether 5726.19
    2,6-dimethyl-4-heptanol 2532.93
    DEF 7826.39
    dimethyl isosorbide 2838.63
    tetrachloroethylene 6504.33
    eugenol 1324.08
    triacetin 2031.9
    span 80 1874.51
    1,4-butanediol 1192.92
    1,1-dichloroethane 12119.42
    2-methyl-1-pentanol 4771.99
    methyl formate 2059.42
    2-methyl-1-butanol 6659.56
    n-decane 511.5
    butyronitrile 11419.51
    3,7-dimethyl-1-octanol 2395.07
    1-chlorooctane 1804.15
    1-chlorotetradecane 506.45
    n-nonane 632.32
    undecane 318.87
    tert-butylcyclohexane 1077.79
    cyclooctane 947.64
    cyclopentanol 6042.98
    tetrahydropyran 16124.13
    tert-amyl methyl ether 6530.13
    2,5,8-trioxanonane 2734.28
    1-hexene 10830.35
    2-isopropoxyethanol 3581.51
    2,2,2-trifluoroethanol 719.46
    methyl butyrate 8363.59

    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