2(3H)-Furanone, dihydro-4-methyl-5-pentyl-

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  • Identifiers

    CAS number
    33673-62-0

    Molecular formula
    C10H18O2

    SMILES
    CCCCCC1C(CC(=O)O1)C

  • Odor profile

    Fragrance
    Floral 77.66%
    Coconut 67.59%
    Lactonic 66.84%
    Jasmin 65.31%
    Green 62.49%
    Sweet 58.11%
    Creamy 57.16%
    Fruity 54.46%
    Waxy 53.09%
    Milky 49.45%

     

    Flavor
    Coconut 64.03%
    Creamy 49.88%
    Peach 49.49%
    Sweet 46.87%
    Fatty 45.4%
    Waxy 42.73%
    Oily 42.48%
    Fresh 42.4%
    Tonka 39.93%
    Dairy 37.08%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    3.0

    pKa est.
    8.38 (weak base)

    Molecular weight
    170.25 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very slow

    Boiling point est.
    272°C

    Flash point

    • 96.1 ˚C est.

  • Synonyms

    • 33673-62-0
    • 2(3H)-Furanone, dihydro-4-methyl-5-pentyl-
    • 4-methyl-5-pentyloxolan-2-one
    • 4-Methyl-5-pentyldihydro-2(3H)-furanone
    • EINECS 251-629-4
    • NSC 29897
    • Dihydro-4-methyl-5-pentylfuran-2-one
    • Dihydro-4-methyl-5-pentylfuran-2(3H)-one
    • DTXSID70865683
    • METHYL TUBERATE
    • NSC29897
    • SCHEMBL2146282
    • DTXCID00814063
    • NSC-29897
    • AKOS006271946
    • NS00012250
    • 251-629-4

  • Applications

    2(3H)-Furanone, dihydro-4-methyl-5-pentyl- (CAS number: 33673-62-0) is primarily used as a fragrance ingredient and can function as a fruity/green odor contributor in fragrance and flavor applications; it is also viewed as a useful synthetic building block for producing related aroma compounds and derivatives; in cosmetics and personal care, it may appear as a fragrance component; in household and cleaning products, it can contribute additional scent; in the plastics and polymers sector, it may be considered as a starting material or intermediate for synthesis of polymers and resins; and it may be evaluated as a foundational building block for polymer formulation, subject to formulation requirements and local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 8968.63
    methanol 10347.31
    isopropanol 7729.72
    water 1.54
    ethyl acetate 6397.93
    n-propanol 5949.19
    acetone 8378.34
    n-butanol 5468.34
    acetonitrile 6327.32
    DMF 4605.27
    toluene 1477.36
    isobutanol 4865.87
    1,4-dioxane 6278.38
    methyl acetate 3759.67
    THF 7730.47
    2-butanone 4717.48
    n-pentanol 3177.22
    sec-butanol 4830.5
    n-hexane 349.6
    ethylene glycol 804.24
    NMP 2821.52
    cyclohexane 503.94
    DMSO 4264.97
    n-butyl acetate 3806.43
    n-octanol 897.83
    chloroform 9869.99
    n-propyl acetate 2787.22
    acetic acid 5162.17
    dichloromethane 8085.92
    cyclohexanone 5794.96
    propylene glycol 1405.81
    isopropyl acetate 4237.23
    DMAc 2541.07
    2-ethoxyethanol 2822.87
    isopentanol 4706.15
    n-heptane 99.46
    ethyl formate 3306.87
    1,2-dichloroethane 4836.06
    n-hexanol 2860.1
    2-methoxyethanol 5163.21
    isobutyl acetate 1755.68
    tetrachloromethane 1240.03
    n-pentyl acetate 1687.45
    transcutol 7900.7
    n-heptanol 900.79
    ethylbenzene 658.13
    MIBK 2497.14
    2-propoxyethanol 3836.35
    tert-butanol 6614.15
    MTBE 5924.68
    2-butoxyethanol 1642.72
    propionic acid 3286.03
    o-xylene 717.56
    formic acid 1395.76
    diethyl ether 5520.5
    m-xylene 943.76
    p-xylene 923.93
    chlorobenzene 2509.04
    dimethyl carbonate 884.27
    n-octane 51.4
    formamide 1761.71
    cyclopentanone 5026.31
    2-pentanone 4587.62
    anisole 1540.38
    cyclopentyl methyl ether 3259.26
    gamma-butyrolactone 5461.69
    1-methoxy-2-propanol 3912.0
    pyridine 4670.5
    3-pentanone 2300.78
    furfural 3700.37
    n-dodecane 48.69
    diethylene glycol 2174.94
    diisopropyl ether 1291.97
    tert-amyl alcohol 4007.68
    acetylacetone 3859.94
    n-hexadecane 58.66
    acetophenone 1219.24
    methyl propionate 2800.77
    isopentyl acetate 2989.87
    trichloroethylene 8105.3
    n-nonanol 703.72
    cyclohexanol 3490.63
    benzyl alcohol 1379.9
    2-ethylhexanol 1185.95
    isooctanol 704.98
    dipropyl ether 1296.54
    1,2-dichlorobenzene 1801.06
    ethyl lactate 734.28
    propylene carbonate 3012.87
    n-methylformamide 2933.41
    2-pentanol 3520.08
    n-pentane 286.96
    1-propoxy-2-propanol 2435.65
    1-methoxy-2-propyl acetate 2494.68
    2-(2-methoxypropoxy) propanol 1207.18
    mesitylene 568.34
    ε-caprolactone 4672.01
    p-cymene 344.67
    epichlorohydrin 6019.37
    1,1,1-trichloroethane 4935.51
    2-aminoethanol 2145.66
    morpholine-4-carbaldehyde 3221.05
    sulfolane 3911.4
    2,2,4-trimethylpentane 154.5
    2-methyltetrahydrofuran 5948.29
    n-hexyl acetate 2261.4
    isooctane 147.29
    2-(2-butoxyethoxy)ethanol 1915.51
    sec-butyl acetate 2004.9
    tert-butyl acetate 3037.61
    decalin 213.86
    glycerin 1330.04
    diglyme 3260.45
    acrylic acid 2274.23
    isopropyl myristate 586.09
    n-butyric acid 6513.88
    acetyl acetate 2781.92
    di(2-ethylhexyl) phthalate 525.35
    ethyl propionate 1974.31
    nitromethane 5995.93
    1,2-diethoxyethane 3003.58
    benzonitrile 2289.72
    trioctyl phosphate 361.88
    1-bromopropane 3472.97
    gamma-valerolactone 5884.58
    n-decanol 477.77
    triethyl phosphate 422.8
    4-methyl-2-pentanol 1554.77
    propionitrile 4275.03
    vinylene carbonate 2706.67
    1,1,2-trichlorotrifluoroethane 3263.26
    DMS 1264.91
    cumene 440.21
    2-octanol 637.52
    2-hexanone 2597.9
    octyl acetate 734.13
    limonene 574.65
    1,2-dimethoxyethane 4915.23
    ethyl orthosilicate 452.45
    tributyl phosphate 523.31
    diacetone alcohol 2510.5
    N,N-dimethylaniline 793.08
    acrylonitrile 4048.38
    aniline 2166.04
    1,3-propanediol 3236.12
    bromobenzene 2710.11
    dibromomethane 5605.24
    1,1,2,2-tetrachloroethane 6358.25
    2-methyl-cyclohexyl acetate 936.08
    tetrabutyl urea 565.2
    diisobutyl methanol 595.91
    2-phenylethanol 1465.74
    styrene 1010.1
    dioctyl adipate 738.7
    dimethyl sulfate 1013.21
    ethyl butyrate 1572.79
    methyl lactate 1044.25
    butyl lactate 1014.0
    diethyl carbonate 869.64
    propanediol butyl ether 1517.22
    triethyl orthoformate 855.16
    p-tert-butyltoluene 343.96
    methyl 4-tert-butylbenzoate 917.4
    morpholine 7680.24
    tert-butylamine 3853.2
    n-dodecanol 332.14
    dimethoxymethane 3041.46
    ethylene carbonate 2689.78
    cyrene 826.34
    2-ethoxyethyl acetate 1992.35
    2-ethylhexyl acetate 1902.66
    1,2,4-trichlorobenzene 1988.23
    4-methylpyridine 4668.98
    dibutyl ether 1274.97
    2,6-dimethyl-4-heptanol 595.91
    DEF 3770.38
    dimethyl isosorbide 1674.96
    tetrachloroethylene 3954.13
    eugenol 939.3
    triacetin 1323.52
    span 80 1106.78
    1,4-butanediol 1160.5
    1,1-dichloroethane 6876.62
    2-methyl-1-pentanol 2600.43
    methyl formate 2123.58
    2-methyl-1-butanol 3839.04
    n-decane 91.97
    butyronitrile 5544.16
    3,7-dimethyl-1-octanol 946.25
    1-chlorooctane 535.87
    1-chlorotetradecane 176.77
    n-nonane 87.56
    undecane 63.82
    tert-butylcyclohexane 206.19
    cyclooctane 117.11
    cyclopentanol 3370.79
    tetrahydropyran 7333.0
    tert-amyl methyl ether 2609.79
    2,5,8-trioxanonane 1799.92
    1-hexene 1755.87
    2-isopropoxyethanol 2097.79
    2,2,2-trifluoroethanol 1205.76
    methyl butyrate 3101.34

    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