Ethyl propyl disulfide

Overview IFRA Request a quote

  • Identifiers

    CAS number
    30453-31-7

    Molecular formula
    C5H12S2

    SMILES
    CCCSSCC

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Sulfurous 88.79%
    Onion 82.49%
    Alliaceous 80.3%
    Garlic 77.84%
    Green 73.54%
    Vegetable 67.06%
    Savory 58.2%
    Cooked 48.61%
    Meaty 47.97%
    Tropical 45.32%

     

    Flavor
    Onion 79.63%
    Garlic 69.64%
    Sulfurous 68.11%
    Green 63.23%
    Alliaceous 43.29%
    Sulfury 39.48%
    Metallic 35.52%
    Cabbage 33.66%
    Radish 29.89%
    Cooked 29.73%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.2

    pKa est.
    5.18 (weak acid)

    Molecular weight
    136.3 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point

    • 180.00 °C. @ 760.00 mm Hg

    Flash point

    • 54.73 ˚C est.

    Solubility expt.

    • Soluble in non-polar solvents; insoluble in water
    • Soluble (in ethanol)

  • Synonyms

    • ETHYL PROPYL DISULFIDE
    • 30453-31-7
    • Disulfide, ethyl propyl
    • 1-(Ethyldisulfanyl)propane
    • ethyl propyl disulphide
    • Ethyl n-propyl disulfide
    • 3,4-Dithiaheptane
    • Ethyl n-propyl disulphide
    • 1-ethyl-2-propyldisulfane
    • UNII-XEP9793KZB
    • XEP9793KZB
    • FEMA NO. 4041
    • DTXSID00184531
    • ETHYL PROPYL DISULFIDE [FHFI]
    • 1-ethyldisulfanylpropane
    • 1-(ethyldisulanyl)propane
    • ETHYLPROPYLDISULFIDE
    • 1-(Ethyldisulphanyl)propane
    • SCHEMBL131892
    • DTXCID40107022
    • CHEBI:173572
    • AKOS006288249
    • NS00125360
    • EN300-1659552
    • Q27293811

  • Applications

    Ethyl propyl disulfide (CAS 30453-31-7) is a diorganosulfur disulfide with ethyl and propyl substituents. In the fragrance and cosmetics industries, it is considered an odorant component with a sulfurous note and may be used as a fragrance ingredient or fixative in perfumes and personal care products. It is also evaluated for potential use in flavor applications within the food aroma sector at limited levels. In industrial manufacturing, it can serve as an intermediate for the synthesis of other sulfur-containing compounds. Additionally, it may function as an odorant in cleaning and household products to improve scent, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 869.19
    methanol 520.06
    isopropanol 872.58
    water 0.1
    ethyl acetate 1891.56
    n-propanol 909.92
    acetone 3002.75
    n-butanol 1021.79
    acetonitrile 1495.52
    DMF 2550.76
    toluene 2043.82
    isobutanol 722.18
    1,4-dioxane 3973.83
    methyl acetate 1606.35
    THF 6255.61
    2-butanone 2312.33
    n-pentanol 586.63
    sec-butanol 870.0
    n-hexane 490.21
    ethylene glycol 104.73
    NMP 2780.93
    cyclohexane 1930.64
    DMSO 3097.41
    n-butyl acetate 3342.12
    n-octanol 684.87
    chloroform 4514.48
    n-propyl acetate 1217.72
    acetic acid 799.33
    dichloromethane 4365.13
    cyclohexanone 5797.86
    propylene glycol 203.35
    isopropyl acetate 1196.68
    DMAc 1563.21
    2-ethoxyethanol 663.18
    isopentanol 775.72
    n-heptane 1446.5
    ethyl formate 1127.13
    1,2-dichloroethane 2724.64
    n-hexanol 1319.52
    2-methoxyethanol 1136.4
    isobutyl acetate 758.29
    tetrachloromethane 1186.55
    n-pentyl acetate 1394.95
    transcutol 2397.96
    n-heptanol 585.85
    ethylbenzene 713.26
    MIBK 1095.34
    2-propoxyethanol 1465.14
    tert-butanol 1151.88
    MTBE 1463.14
    2-butoxyethanol 729.18
    propionic acid 810.29
    o-xylene 995.09
    formic acid 85.94
    diethyl ether 1996.81
    m-xylene 1080.26
    p-xylene 900.56
    chlorobenzene 2231.62
    dimethyl carbonate 464.07
    n-octane 369.76
    formamide 190.48
    cyclopentanone 5073.12
    2-pentanone 2172.65
    anisole 1142.48
    cyclopentyl methyl ether 2927.44
    gamma-butyrolactone 3623.09
    1-methoxy-2-propanol 995.33
    pyridine 3921.61
    3-pentanone 1705.61
    furfural 2759.31
    n-dodecane 197.52
    diethylene glycol 632.21
    diisopropyl ether 747.7
    tert-amyl alcohol 907.03
    acetylacetone 2127.23
    n-hexadecane 237.01
    acetophenone 1119.77
    methyl propionate 1239.03
    isopentyl acetate 2097.47
    trichloroethylene 4529.8
    n-nonanol 590.91
    cyclohexanol 1915.58
    benzyl alcohol 704.53
    2-ethylhexanol 1147.13
    isooctanol 463.77
    dipropyl ether 2677.78
    1,2-dichlorobenzene 1798.07
    ethyl lactate 368.63
    propylene carbonate 2006.12
    n-methylformamide 805.0
    2-pentanol 764.28
    n-pentane 513.54
    1-propoxy-2-propanol 1564.26
    1-methoxy-2-propyl acetate 1720.82
    2-(2-methoxypropoxy) propanol 646.5
    mesitylene 739.03
    ε-caprolactone 3495.61
    p-cymene 869.92
    epichlorohydrin 3243.48
    1,1,1-trichloroethane 3285.91
    2-aminoethanol 227.3
    morpholine-4-carbaldehyde 2631.01
    sulfolane 3910.17
    2,2,4-trimethylpentane 186.93
    2-methyltetrahydrofuran 4532.24
    n-hexyl acetate 1592.07
    isooctane 181.7
    2-(2-butoxyethoxy)ethanol 948.63
    sec-butyl acetate 788.74
    tert-butyl acetate 1331.51
    decalin 425.2
    glycerin 239.36
    diglyme 2242.21
    acrylic acid 613.62
    isopropyl myristate 692.62
    n-butyric acid 1484.85
    acetyl acetate 1132.15
    di(2-ethylhexyl) phthalate 451.79
    ethyl propionate 982.37
    nitromethane 1641.62
    1,2-diethoxyethane 2179.01
    benzonitrile 1699.88
    trioctyl phosphate 402.54
    1-bromopropane 2219.4
    gamma-valerolactone 4575.72
    n-decanol 438.29
    triethyl phosphate 633.17
    4-methyl-2-pentanol 402.04
    propionitrile 1476.17
    vinylene carbonate 1731.51
    1,1,2-trichlorotrifluoroethane 1464.72
    DMS 898.05
    cumene 403.12
    2-octanol 513.8
    2-hexanone 1396.36
    octyl acetate 781.74
    limonene 1803.0
    1,2-dimethoxyethane 2123.84
    ethyl orthosilicate 635.51
    tributyl phosphate 557.35
    diacetone alcohol 1053.56
    N,N-dimethylaniline 689.3
    acrylonitrile 1525.01
    aniline 1324.44
    1,3-propanediol 485.62
    bromobenzene 2798.18
    dibromomethane 3180.61
    1,1,2,2-tetrachloroethane 3370.68
    2-methyl-cyclohexyl acetate 1213.9
    tetrabutyl urea 860.12
    diisobutyl methanol 813.25
    2-phenylethanol 960.06
    styrene 1044.46
    dioctyl adipate 831.11
    dimethyl sulfate 717.78
    ethyl butyrate 2206.92
    methyl lactate 420.74
    butyl lactate 786.09
    diethyl carbonate 1048.98
    propanediol butyl ether 641.49
    triethyl orthoformate 1294.38
    p-tert-butyltoluene 842.83
    methyl 4-tert-butylbenzoate 804.74
    morpholine 3784.57
    tert-butylamine 813.78
    n-dodecanol 367.61
    dimethoxymethane 1530.65
    ethylene carbonate 1618.36
    cyrene 672.84
    2-ethoxyethyl acetate 1319.22
    2-ethylhexyl acetate 1882.31
    1,2,4-trichlorobenzene 1839.76
    4-methylpyridine 3520.06
    dibutyl ether 1835.52
    2,6-dimethyl-4-heptanol 813.25
    DEF 2079.44
    dimethyl isosorbide 1681.28
    tetrachloroethylene 2133.25
    eugenol 670.88
    triacetin 1034.92
    span 80 844.21
    1,4-butanediol 191.25
    1,1-dichloroethane 2826.88
    2-methyl-1-pentanol 477.45
    methyl formate 706.77
    2-methyl-1-butanol 719.48
    n-decane 371.98
    butyronitrile 1884.68
    3,7-dimethyl-1-octanol 717.12
    1-chlorooctane 927.01
    1-chlorotetradecane 375.24
    n-nonane 429.3
    undecane 258.2
    tert-butylcyclohexane 310.13
    cyclooctane 656.7
    cyclopentanol 1773.88
    tetrahydropyran 5542.89
    tert-amyl methyl ether 1133.98
    2,5,8-trioxanonane 1329.24
    1-hexene 1088.17
    2-isopropoxyethanol 539.8
    2,2,2-trifluoroethanol 216.47
    methyl butyrate 1478.54

    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