(4) 2-Methyldecanal

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    19009-56-4

    Molecular formula
    C11H22O

    SMILES
    CCCCCCCCC(C)C=O

    Retention indicies (RI)

    • Carbowax: 1521.0

  • Odor profile

    Fragrance
    Citrus 80.61%
    Waxy 72.03%
    Fatty 68.23%
    Orange 63.42%
    Fresh 62.69%
    Aldehydic 62.38%
    Green 62.27%
    Fruity 57.36%
    Floral 54.79%
    Sweet 52.77%

     

    Flavor
    Waxy 72.5%
    Citrus 68.53%
    Aldehydic 62.07%
    Fresh 60.48%
    Floral 60.11%
    Green 57.33%
    Fatty 47.74%
    Orange 47.02%
    Fat 46.12%
    Rose 42.29%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    4.4

    pKa est.
    7.6 (neutral)

    Molecular weight
    170.29 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    221°C

    Flash point

    • 87.8 ˚C est.

  • Synonyms

    • 2-Methyldecanal
    • 19009-56-4
    • 2-Methyl decanal
    • (4) 2-Methyldecanal
    • 2-Methyl-1-decanal
    • 2-Methyldecan-1-al
    • Decanal, 2-methyl-
    • Methyl octyl acetaldehyde
    • Methyloctylacetaldehyde
    • EINECS 242-745-6
    • BRN 1753165
    • 1-DECANAL, 2-METHYL-
    • DTXSID5021623
    • a-Methyldecanal
    • 2-METHYL-DECANAL
    • SCHEMBL21869
    • DTXCID101623
    • MFCD00072209
    • AKOS006275151
    • BS-52186
    • NS00012950
    • E85290
    • 242-745-6
    • Aldehyde C-11 MOA

  • Applications

    (4) 2-Methyldecanal (CAS number: 19009-56-4) is used in fragrance chemistry as a high‑molecular‑weight odorant and fixative, contributing woody and aldehydic notes; it is commonly employed as a fragrance ingredient in cosmetics and personal care products and as a scent additive in household cleaners and air fresheners. In industrial manufacturing it serves as a synthetic intermediate for the preparation of other aroma compounds. In the flavor/aroma sector, it may be evaluated for potential use as a limited-formulation flavor component.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 10938.45
    methanol 7314.93
    isopropanol 13280.92
    water 0.04
    ethyl acetate 14386.78
    n-propanol 10388.16
    acetone 17545.78
    n-butanol 10346.82
    acetonitrile 9320.71
    DMF 7011.93
    toluene 3161.78
    isobutanol 8153.97
    1,4-dioxane 9614.82
    methyl acetate 7391.92
    THF 14911.89
    2-butanone 13370.57
    n-pentanol 6288.4
    sec-butanol 9644.23
    n-hexane 5710.83
    ethylene glycol 344.81
    NMP 3684.63
    cyclohexane 5021.23
    DMSO 7341.34
    n-butyl acetate 13338.25
    n-octanol 2081.37
    chloroform 12662.82
    n-propyl acetate 9687.23
    acetic acid 3421.1
    dichloromethane 12973.19
    cyclohexanone 14655.98
    propylene glycol 1020.04
    isopropyl acetate 8749.32
    DMAc 3477.44
    2-ethoxyethanol 4884.46
    isopentanol 9155.99
    n-heptane 2391.37
    ethyl formate 5277.25
    1,2-dichloroethane 11160.24
    n-hexanol 7305.54
    2-methoxyethanol 7774.61
    isobutyl acetate 4739.34
    tetrachloromethane 2986.38
    n-pentyl acetate 5082.33
    transcutol 13319.66
    n-heptanol 2416.24
    ethylbenzene 1987.57
    MIBK 6444.85
    2-propoxyethanol 7505.51
    tert-butanol 14316.69
    MTBE 14909.54
    2-butoxyethanol 3667.55
    propionic acid 4198.65
    o-xylene 1621.44
    formic acid 441.72
    diethyl ether 17696.82
    m-xylene 2044.61
    p-xylene 2416.79
    chlorobenzene 4128.07
    dimethyl carbonate 923.5
    n-octane 668.33
    formamide 922.25
    cyclopentanone 10757.13
    2-pentanone 14136.29
    anisole 3028.5
    cyclopentyl methyl ether 9677.0
    gamma-butyrolactone 8513.49
    1-methoxy-2-propanol 7251.52
    pyridine 8407.98
    3-pentanone 7041.52
    furfural 5200.75
    n-dodecane 247.13
    diethylene glycol 2343.29
    diisopropyl ether 4763.49
    tert-amyl alcohol 9416.24
    acetylacetone 7098.21
    n-hexadecane 301.11
    acetophenone 2383.66
    methyl propionate 6572.03
    isopentyl acetate 10097.26
    trichloroethylene 14096.65
    n-nonanol 1717.12
    cyclohexanol 8178.52
    benzyl alcohol 2113.21
    2-ethylhexanol 5192.16
    isooctanol 2167.18
    dipropyl ether 10556.68
    1,2-dichlorobenzene 3259.56
    ethyl lactate 1614.26
    propylene carbonate 4584.27
    n-methylformamide 3849.68
    2-pentanol 8362.84
    n-pentane 2942.16
    1-propoxy-2-propanol 8085.37
    1-methoxy-2-propyl acetate 6350.35
    2-(2-methoxypropoxy) propanol 1912.15
    mesitylene 1363.32
    ε-caprolactone 9654.78
    p-cymene 1356.22
    epichlorohydrin 10725.9
    1,1,1-trichloroethane 11035.63
    2-aminoethanol 1566.51
    morpholine-4-carbaldehyde 4796.55
    sulfolane 6708.13
    2,2,4-trimethylpentane 797.68
    2-methyltetrahydrofuran 14698.91
    n-hexyl acetate 5065.56
    isooctane 796.42
    2-(2-butoxyethoxy)ethanol 3180.74
    sec-butyl acetate 6145.43
    tert-butyl acetate 7318.55
    decalin 1214.61
    glycerin 893.77
    diglyme 6616.31
    acrylic acid 2047.74
    isopropyl myristate 1528.01
    n-butyric acid 10744.11
    acetyl acetate 3882.96
    di(2-ethylhexyl) phthalate 803.69
    ethyl propionate 7046.19
    nitromethane 6112.1
    1,2-diethoxyethane 10049.41
    benzonitrile 3886.82
    trioctyl phosphate 751.35
    1-bromopropane 11394.63
    gamma-valerolactone 11467.25
    n-decanol 1132.35
    triethyl phosphate 1406.46
    4-methyl-2-pentanol 3650.77
    propionitrile 9176.48
    vinylene carbonate 3488.24
    1,1,2-trichlorotrifluoroethane 4532.79
    DMS 1968.11
    cumene 1190.89
    2-octanol 1899.2
    2-hexanone 9623.05
    octyl acetate 1651.47
    limonene 2920.83
    1,2-dimethoxyethane 11506.29
    ethyl orthosilicate 1594.97
    tributyl phosphate 1128.49
    diacetone alcohol 5199.55
    N,N-dimethylaniline 1535.63
    acrylonitrile 6861.03
    aniline 3494.95
    1,3-propanediol 3465.95
    bromobenzene 4487.47
    dibromomethane 11225.51
    1,1,2,2-tetrachloroethane 10778.73
    2-methyl-cyclohexyl acetate 3092.86
    tetrabutyl urea 1270.02
    diisobutyl methanol 2785.86
    2-phenylethanol 2493.49
    styrene 2779.31
    dioctyl adipate 1716.43
    dimethyl sulfate 1169.37
    ethyl butyrate 7976.07
    methyl lactate 1409.75
    butyl lactate 2589.91
    diethyl carbonate 3240.7
    propanediol butyl ether 2140.27
    triethyl orthoformate 3865.21
    p-tert-butyltoluene 1279.51
    methyl 4-tert-butylbenzoate 1585.01
    morpholine 13955.1
    tert-butylamine 10280.98
    n-dodecanol 823.31
    dimethoxymethane 5529.32
    ethylene carbonate 3806.81
    cyrene 1191.88
    2-ethoxyethyl acetate 4490.11
    2-ethylhexyl acetate 7216.07
    1,2,4-trichlorobenzene 3170.67
    4-methylpyridine 8945.35
    dibutyl ether 6879.62
    2,6-dimethyl-4-heptanol 2785.86
    DEF 9614.89
    dimethyl isosorbide 3123.34
    tetrachloroethylene 7321.05
    eugenol 1435.85
    triacetin 2319.78
    span 80 1948.78
    1,4-butanediol 1127.02
    1,1-dichloroethane 14642.83
    2-methyl-1-pentanol 5197.22
    methyl formate 2069.1
    2-methyl-1-butanol 7183.57
    n-decane 591.01
    butyronitrile 12785.27
    3,7-dimethyl-1-octanol 2536.77
    1-chlorooctane 2127.48
    1-chlorotetradecane 581.93
    n-nonane 745.73
    undecane 358.61
    tert-butylcyclohexane 1238.58
    cyclooctane 1212.04
    cyclopentanol 6593.88
    tetrahydropyran 20397.31
    tert-amyl methyl ether 7833.27
    2,5,8-trioxanonane 3000.24
    1-hexene 13027.7
    2-isopropoxyethanol 4003.23
    2,2,2-trifluoroethanol 661.07
    methyl butyrate 10292.93

    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

Botanical

Name CAS Botanical Proportion
Cistus (Spain) 2 8016-26-0 Cistus ladaniferus L. var. maculatus Dun, fam. Cistaceae 0.2%