Ethylene sulfide

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  • Identifiers

    CAS number
    420-12-2

    Molecular formula
    C2H4S

    SMILES
    C1CS1

    Safety labels

    Flammable
    Flammable

    Corrosive
    Corrosive

    Acute Toxic
    Acute Toxic

  • Odor profile

    Fragrance
    Sulfurous 86.82%
    Meaty 55.56%
    Garlic 55.56%
    Alliaceous 54.13%
    Onion 52.97%
    Vegetable 44.1%
    Mushroom 43.02%
    Roasted 33.65%
    Savory 33.52%
    Cooked 31.75%

     

    Flavor
    Sulfurous 59.66%
    Garlic 54.15%
    Onion 53.81%
    Alliaceous 50.94%
    Fishy 41.01%
    Roasted 34.53%
    Solvent 33.32%
    Sulfur 33.21%
    Ammoniacal 31.68%
    Savory 29.44%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    0.6

    pKa est.
    4.18 (weak acid)

    Molecular weight
    60.12 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Melting point expt.

    • -109 °C

    Boiling point

    • decomposes at 57 °C

    Flash point

    • -4.19 ˚C est.

    Solubility expt.

    • Slightly soluble in ethanol and ether; soluble in acetone and chloroform

  • Synonyms

    • Thiirane
    • ETHYLENE SULFIDE
    • 420-12-2
    • Thiacyclopropane
    • Ethylene sulphide
    • 2,3-Dihydrothiirene
    • Sulfurane
    • Dimethylene sulfide
    • Ethylene episulfide
    • Thiiran
    • Epithioethane
    • Ethylene episulphide
    • Aethylensulfid
    • Thiirene, 2,3-dihydro-
    • Aethylensulfid [German]
    • CCRIS 782
    • NSC 89690
    • HSDB 5489
    • EINECS 206-993-9
    • DTXSID3049411
    • CHEBI:30977
    • AI3-52351
    • NSC-89690
    • ETHYLENE SULFIDE [MI]
    • ETHYLENE SULFIDE [HSDB]
    • ETHYLENE SULFIDE [IARC]
    • A2W5165740
    • DTXCID2029371
    • AETHYLENSULFID (GERMAN)
    • ETHYLENE SULFIDE (IARC)
    • ethylenesulfide
    • Ethylene Sulfide; Ethylene episulfide; NSC 89690; Thiacyclopropane; 2,3-Dihydro-thiirene
    • UNII-A2W5165740
    • 2,3Dihydrothiirene
    • MFCD00005159
    • Thiirene,3-dihydro-
    • Thiirene, 2,3dihydro
    • Ethylene sulfide, 98%
    • WLN: T3STJ
    • CHEMBL3184935
    • NSC89690
    • Tox21_202917
    • AKOS037795694
    • NCGC00260463-01
    • CAS-420-12-2
    • DB-243558
    • Ethylene sulfide, purum, >=97.5% (GC)
    • E0133
    • NS00022170
    • C19419
    • D90441
    • Ethylene sulfide (stabilised with Butyl mercaptan)
    • Q220676
    • Ethylene sulfide stabilized with ~1% butylmercaptan
    • 206-993-9

  • Applications

    Ethylene sulfide (CAS 420-12-2) is a highly reactive episulfide used primarily as an organic synthesis intermediate and as a monomer or crosslinking building block for sulfur-containing polymers. In practice, it provides feedstock for thiol- or thioether-functional polymers and networks; it serves as a precursor for monomers and crosslinkers in coatings and adhesives; it acts as a reactive intermediate in the preparation of specialty materials for electronic components; and it is used in research and development of advanced plastics and resins in industrial manufacturing.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 29.64
    methanol 31.9
    isopropanol 19.14
    water 0.05
    ethyl acetate 52.07
    n-propanol 23.64
    acetone 104.05
    n-butanol 25.93
    acetonitrile 54.89
    DMF 136.95
    toluene 40.73
    isobutanol 15.84
    1,4-dioxane 115.13
    methyl acetate 53.38
    THF 209.89
    2-butanone 65.44
    n-pentanol 19.76
    sec-butanol 16.24
    n-hexane 7.43
    ethylene glycol 12.51
    NMP 217.7
    cyclohexane 29.29
    DMSO 223.67
    n-butyl acetate 86.89
    n-octanol 18.93
    chloroform 206.26
    n-propyl acetate 49.41
    acetic acid 85.99
    dichloromethane 203.02
    cyclohexanone 200.28
    propylene glycol 11.58
    isopropyl acetate 31.61
    DMAc 77.79
    2-ethoxyethanol 35.49
    isopentanol 20.0
    n-heptane 18.96
    ethyl formate 52.67
    1,2-dichloroethane 134.38
    n-hexanol 30.88
    2-methoxyethanol 59.68
    isobutyl acetate 29.3
    tetrachloromethane 36.21
    n-pentyl acetate 49.21
    transcutol 170.93
    n-heptanol 18.01
    ethylbenzene 19.73
    MIBK 30.84
    2-propoxyethanol 52.79
    tert-butanol 20.75
    MTBE 19.94
    2-butoxyethanol 37.19
    propionic acid 46.58
    o-xylene 24.28
    formic acid 23.05
    diethyl ether 33.35
    m-xylene 22.97
    p-xylene 28.22
    chlorobenzene 107.55
    dimethyl carbonate 25.4
    n-octane 6.71
    formamide 45.04
    cyclopentanone 250.49
    2-pentanone 58.81
    anisole 44.12
    cyclopentyl methyl ether 81.17
    gamma-butyrolactone 255.25
    1-methoxy-2-propanol 39.72
    pyridine 181.74
    3-pentanone 49.4
    furfural 273.9
    n-dodecane 4.46
    diethylene glycol 45.31
    diisopropyl ether 11.56
    tert-amyl alcohol 16.77
    acetylacetone 81.64
    n-hexadecane 5.25
    acetophenone 59.96
    methyl propionate 45.56
    isopentyl acetate 60.48
    trichloroethylene 277.52
    n-nonanol 17.88
    cyclohexanol 43.78
    benzyl alcohol 40.92
    2-ethylhexanol 27.47
    isooctanol 15.11
    dipropyl ether 49.62
    1,2-dichlorobenzene 100.62
    ethyl lactate 23.48
    propylene carbonate 129.86
    n-methylformamide 68.12
    2-pentanol 16.49
    n-pentane 7.76
    1-propoxy-2-propanol 50.94
    1-methoxy-2-propyl acetate 63.27
    2-(2-methoxypropoxy) propanol 37.45
    mesitylene 16.1
    ε-caprolactone 138.41
    p-cymene 25.43
    epichlorohydrin 180.97
    1,1,1-trichloroethane 101.41
    2-aminoethanol 16.69
    morpholine-4-carbaldehyde 165.44
    sulfolane 336.23
    2,2,4-trimethylpentane 3.53
    2-methyltetrahydrofuran 113.3
    n-hexyl acetate 50.72
    isooctane 3.12
    2-(2-butoxyethoxy)ethanol 55.4
    sec-butyl acetate 27.27
    tert-butyl acetate 34.24
    decalin 9.4
    glycerin 22.94
    diglyme 121.81
    acrylic acid 58.87
    isopropyl myristate 22.4
    n-butyric acid 65.56
    acetyl acetate 46.38
    di(2-ethylhexyl) phthalate 21.65
    ethyl propionate 34.9
    nitromethane 154.69
    1,2-diethoxyethane 73.93
    benzonitrile 98.76
    trioctyl phosphate 16.9
    1-bromopropane 60.66
    gamma-valerolactone 249.86
    n-decanol 13.87
    triethyl phosphate 30.71
    4-methyl-2-pentanol 10.52
    propionitrile 42.09
    vinylene carbonate 124.69
    1,1,2-trichlorotrifluoroethane 139.37
    DMS 49.27
    cumene 14.07
    2-octanol 13.21
    2-hexanone 50.87
    octyl acetate 26.45
    limonene 41.37
    1,2-dimethoxyethane 80.94
    ethyl orthosilicate 28.27
    tributyl phosphate 24.23
    diacetone alcohol 41.3
    N,N-dimethylaniline 30.26
    acrylonitrile 73.12
    aniline 52.27
    1,3-propanediol 28.11
    bromobenzene 113.5
    dibromomethane 137.76
    1,1,2,2-tetrachloroethane 200.01
    2-methyl-cyclohexyl acetate 47.01
    tetrabutyl urea 37.13
    diisobutyl methanol 21.17
    2-phenylethanol 47.01
    styrene 32.44
    dioctyl adipate 37.01
    dimethyl sulfate 54.82
    ethyl butyrate 62.43
    methyl lactate 27.43
    butyl lactate 37.32
    diethyl carbonate 41.34
    propanediol butyl ether 34.7
    triethyl orthoformate 45.54
    p-tert-butyltoluene 22.07
    methyl 4-tert-butylbenzoate 39.86
    morpholine 112.91
    tert-butylamine 14.43
    n-dodecanol 11.55
    dimethoxymethane 58.01
    ethylene carbonate 91.36
    cyrene 52.53
    2-ethoxyethyl acetate 60.41
    2-ethylhexyl acetate 53.73
    1,2,4-trichlorobenzene 111.07
    4-methylpyridine 117.58
    dibutyl ether 40.16
    2,6-dimethyl-4-heptanol 21.17
    DEF 72.66
    dimethyl isosorbide 94.14
    tetrachloroethylene 143.58
    eugenol 43.39
    triacetin 57.06
    span 80 42.56
    1,4-butanediol 12.53
    1,1-dichloroethane 86.82
    2-methyl-1-pentanol 15.49
    methyl formate 62.62
    2-methyl-1-butanol 16.92
    n-decane 7.18
    butyronitrile 50.2
    3,7-dimethyl-1-octanol 20.26
    1-chlorooctane 23.13
    1-chlorotetradecane 10.39
    n-nonane 7.58
    undecane 5.43
    tert-butylcyclohexane 6.53
    cyclooctane 10.29
    cyclopentanol 54.79
    tetrahydropyran 113.6
    tert-amyl methyl ether 18.74
    2,5,8-trioxanonane 82.53
    1-hexene 20.23
    2-isopropoxyethanol 24.38
    2,2,2-trifluoroethanol 31.56
    methyl butyrate 55.06

    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