Amyl propionate

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  • Identifiers

    CAS number
    624-54-4

    Molecular formula
    C8H16O2

    SMILES
    CCCCCOC(=O)CC

    Safety labels

    Flammable
    Flammable

  • Odor profile

    Fragrance
    Fruity 98.25%
    Sweet 82.89%
    Pineapple 72.27%
    Banana 68.12%
    Apple 67.26%
    Ethereal 64.82%
    Tropical 54.12%
    Ripe 50.43%
    Apricot 49.4%
    Rummy 49.23%

     

    Flavor
    Fruity 86.44%
    Sweet 77.3%
    Green 64.02%
    Pineapple 61.48%
    Apple 59.14%
    Banana 56.82%
    Fruit 54.69%
    Pear 44.0%
    Tropical 40.34%
    Rum 37.76%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.4

    pKa est.
    8.56 (weak base)

    Molecular weight
    144.21 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Melting point expt.

    • -73.1 °C

    Boiling point

    • 167.00 to 169.00 °C. @ 760.00 mm Hg

    Flash point

    • 52.74 ˚C est.
    • 106 °F (USCG, 1999)

    Solubility expt.

    • 0.81 mg/mL at 25 °C

  • Synonyms

    • Pentyl propionate
    • n-Pentyl propionate
    • Pentyl propanoate
    • AMYL PROPIONATE
    • 624-54-4
    • Amyl propanoate
    • Propanoic acid, pentyl ester
    • Pentyl propanate
    • n-Amyl propionate
    • n-Pentyl propanoate
    • Propionic acid, pentyl ester
    • n-Amyl propionate (natural)
    • NSC 7931
    • EINECS 210-852-7
    • BRN 1747102
    • N-Amyl n-propionate
    • AI3-24356
    • NSC-7931
    • propionic acid pentyl ester
    • 826P0596UJ
    • DTXSID4041606
    • CHEBI:87373
    • Propionic acid, pentyl ester (6CI,7CI,8CI)
    • EC 210-852-7
    • UNII-826P0596UJ
    • NPentyl Propionate
    • MFCD00048849
    • Tri Pentyl Propionate
    • Tri NPentyl Propionate
    • Tri N-Pentyl Propionate
    • Pentyl propionate, >=99%
    • SCHEMBL20847
    • DTXCID2021606
    • NSC7931
    • AKOS015902810
    • LS-13517
    • NS00002743
    • Q3050158
    • 210-852-7

  • Applications

    Amyl propionate (CAS 624-54-4) is commonly used as an odorant in perfumery and fragrance formulations, contributing fruity notes to cosmetics and personal care products; it is also evaluated as a flavoring agent in food and beverage flavorings to impart fruity characteristics. In household products, it can serve as a fragrance component in air fresheners and cleaners; in industrial manufacturing, it is used as an intermediate in the synthesis of fragrance and flavor chemicals, and may function as a solvent or carrier in specialty formulations where a light fruity ester is desired.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 9004.71
    methanol 12489.39
    isopropanol 6621.57
    water 2.48
    ethyl acetate 5365.76
    n-propanol 5941.36
    acetone 9582.13
    n-butanol 5408.38
    acetonitrile 7671.2
    DMF 6895.37
    toluene 2117.15
    isobutanol 4516.12
    1,4-dioxane 6297.62
    methyl acetate 4099.91
    THF 6930.06
    2-butanone 5644.31
    n-pentanol 4067.14
    sec-butanol 5315.62
    n-hexane 1553.45
    ethylene glycol 919.3
    NMP 4818.52
    cyclohexane 1532.38
    DMSO 7167.43
    n-butyl acetate 5226.62
    n-octanol 1629.17
    chloroform 11091.45
    n-propyl acetate 3889.61
    acetic acid 7738.95
    dichloromethane 9726.04
    cyclohexanone 7300.2
    propylene glycol 1272.96
    isopropyl acetate 3143.82
    DMAc 4282.47
    2-ethoxyethanol 3566.76
    isopentanol 4965.71
    n-heptane 505.15
    ethyl formate 3470.98
    1,2-dichloroethane 6000.48
    n-hexanol 3784.06
    2-methoxyethanol 5548.31
    isobutyl acetate 2143.31
    tetrachloromethane 2051.07
    n-pentyl acetate 2662.6
    transcutol 9731.72
    n-heptanol 1404.88
    ethylbenzene 1445.32
    MIBK 2391.44
    2-propoxyethanol 4271.17
    tert-butanol 7094.58
    MTBE 6061.22
    2-butoxyethanol 2269.0
    propionic acid 4386.46
    o-xylene 1204.27
    formic acid 2106.43
    diethyl ether 5681.8
    m-xylene 1243.97
    p-xylene 1952.47
    chlorobenzene 3474.35
    dimethyl carbonate 864.31
    n-octane 214.53
    formamide 2598.23
    cyclopentanone 6085.93
    2-pentanone 4809.4
    anisole 2360.51
    cyclopentyl methyl ether 3869.58
    gamma-butyrolactone 5862.9
    1-methoxy-2-propanol 3763.71
    pyridine 6934.66
    3-pentanone 2843.17
    furfural 4887.5
    n-dodecane 134.67
    diethylene glycol 2291.18
    diisopropyl ether 1363.96
    tert-amyl alcohol 5855.99
    acetylacetone 3802.62
    n-hexadecane 157.33
    acetophenone 2162.99
    methyl propionate 2798.0
    isopentyl acetate 3931.48
    trichloroethylene 10235.95
    n-nonanol 1318.66
    cyclohexanol 4735.84
    benzyl alcohol 2077.32
    2-ethylhexanol 2249.36
    isooctanol 1160.69
    dipropyl ether 2250.93
    1,2-dichlorobenzene 2576.11
    ethyl lactate 985.85
    propylene carbonate 3139.5
    n-methylformamide 4043.16
    2-pentanol 3798.16
    n-pentane 927.68
    1-propoxy-2-propanol 3158.08
    1-methoxy-2-propyl acetate 2439.79
    2-(2-methoxypropoxy) propanol 1670.49
    mesitylene 798.22
    ε-caprolactone 5691.0
    p-cymene 754.85
    epichlorohydrin 6196.03
    1,1,1-trichloroethane 5967.03
    2-aminoethanol 2304.32
    morpholine-4-carbaldehyde 4384.17
    sulfolane 5543.45
    2,2,4-trimethylpentane 393.29
    2-methyltetrahydrofuran 6528.26
    n-hexyl acetate 3284.3
    isooctane 268.37
    2-(2-butoxyethoxy)ethanol 2536.54
    sec-butyl acetate 2335.28
    tert-butyl acetate 2778.78
    decalin 577.9
    glycerin 1418.88
    diglyme 4341.63
    acrylic acid 3459.34
    isopropyl myristate 878.14
    n-butyric acid 6929.13
    acetyl acetate 2727.72
    di(2-ethylhexyl) phthalate 822.18
    ethyl propionate 2677.07
    nitromethane 8679.6
    1,2-diethoxyethane 4170.13
    benzonitrile 3857.19
    trioctyl phosphate 582.68
    1-bromopropane 4538.16
    gamma-valerolactone 6618.84
    n-decanol 850.33
    triethyl phosphate 817.55
    4-methyl-2-pentanol 1730.47
    propionitrile 5169.57
    vinylene carbonate 3062.71
    1,1,2-trichlorotrifluoroethane 4297.19
    DMS 1555.64
    cumene 886.99
    2-octanol 1163.53
    2-hexanone 4014.59
    octyl acetate 1168.35
    limonene 1285.1
    1,2-dimethoxyethane 6553.04
    ethyl orthosilicate 892.03
    tributyl phosphate 873.57
    diacetone alcohol 2582.05
    N,N-dimethylaniline 1480.84
    acrylonitrile 5714.02
    aniline 2916.39
    1,3-propanediol 3364.85
    bromobenzene 3773.62
    dibromomethane 6968.34
    1,1,2,2-tetrachloroethane 8336.0
    2-methyl-cyclohexyl acetate 1581.66
    tetrabutyl urea 1028.03
    diisobutyl methanol 1042.34
    2-phenylethanol 1967.78
    styrene 2140.06
    dioctyl adipate 1245.82
    dimethyl sulfate 1225.91
    ethyl butyrate 2551.38
    methyl lactate 1066.01
    butyl lactate 1638.93
    diethyl carbonate 1408.71
    propanediol butyl ether 2070.97
    triethyl orthoformate 1494.73
    p-tert-butyltoluene 677.55
    methyl 4-tert-butylbenzoate 1373.13
    morpholine 8091.37
    tert-butylamine 5084.09
    n-dodecanol 586.19
    dimethoxymethane 2876.12
    ethylene carbonate 2657.26
    cyrene 1210.47
    2-ethoxyethyl acetate 2526.66
    2-ethylhexyl acetate 2878.69
    1,2,4-trichlorobenzene 2635.44
    4-methylpyridine 6951.78
    dibutyl ether 2588.79
    2,6-dimethyl-4-heptanol 1042.34
    DEF 5000.4
    dimethyl isosorbide 2275.31
    tetrachloroethylene 6053.71
    eugenol 1500.74
    triacetin 1876.67
    span 80 1735.3
    1,4-butanediol 1388.06
    1,1-dichloroethane 7076.16
    2-methyl-1-pentanol 3609.52
    methyl formate 2710.76
    2-methyl-1-butanol 4472.26
    n-decane 269.5
    butyronitrile 6130.84
    3,7-dimethyl-1-octanol 1609.84
    1-chlorooctane 1164.58
    1-chlorotetradecane 352.22
    n-nonane 295.85
    undecane 181.41
    tert-butylcyclohexane 537.54
    cyclooctane 344.12
    cyclopentanol 4248.1
    tetrahydropyran 7992.36
    tert-amyl methyl ether 3487.14
    2,5,8-trioxanonane 2562.76
    1-hexene 4261.34
    2-isopropoxyethanol 2552.06
    2,2,2-trifluoroethanol 1587.16
    methyl butyrate 4363.77

    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