s,s'-Ethylidene dithioacetate

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  • Identifiers

    CAS number
    20266-80-2

    Molecular formula
    C6H10O2S2

    SMILES
    CC(SC(=O)C)SC(=O)C

    Safety labels

  • Odor profile

    Fragrance
    Sulfurous 85.55%
    Meaty 63.24%
    Tropical 62.34%
    Fruity 62.05%
    Onion 59.85%
    Green 55.02%
    Alliaceous 51.67%
    Garlic 49.56%
    Roasted 48.4%
    Vegetable 43.04%

     

    Flavor
    Onion 46.98%
    Sulfurous 41.97%
    Sulfury 41.8%
    Meaty 39.51%
    Cooked 37.69%
    Garlic 36.73%
    Roasted 36.66%
    Cabbage 34.63%
    Alliaceous 27.17%
    Sulfur 25.48%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.6

    pKa est.
    7.06 (neutral)

    Molecular weight
    178.3 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Slow

    Boiling point est.
    254°C

    Flash point

    • 102.14 ˚C est.

  • Synonyms

    • s,s'-ethylidene dithioacetate
    • 20266-80-2
    • 1,1-bis-acetylsulfanyl-ethane
    • 8AD44G5TAR
    • 1,1-Ethanedithiol, diacetate
    • SCHEMBL7109897
    • SCHEMBL7752121
    • SCHEMBL7752123
    • DTXSID501273851
    • S,S'-Ethane-1,1-diyl diethanethioate
    • Ethanethioic acid, S,S'-ethylidene ester
    • S-(1-Ethanoylsulfanylethyl) ethanethioate
    • Acetic acid, thio-, S,S'-ethylidene ester
    • Ethanethioic acid, S,Sa(2)-ethylidene ester
    • 1-{[1-(acetylsulfanyl)ethyl]sulfanyl}ethan-1-one
    • 20266-80-2

  • Applications

    s,s'-Ethylidene dithioacetate (CAS 20266-80-2) is an organic sulfur-containing intermediate primarily used as a building block in organic synthesis and thioester derivatives. It is commonly evaluated as a functional modifier in polymer and plastics systems, enabling functionalization and potential crosslinking through its dithioester groups. In coatings and adhesives, it can act as a reactive additive that participates in curing and bonding chemistry. It is also used as a reagent or ligand in certain metal-catalyzed transformations used in specialty chemical manufacturing, subject to local regulations and formulation constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 235.29
    methanol 307.71
    isopropanol 174.66
    water 12.74
    ethyl acetate 632.92
    n-propanol 182.8
    acetone 871.78
    n-butanol 171.36
    acetonitrile 676.93
    DMF 1210.8
    toluene 403.47
    isobutanol 131.16
    1,4-dioxane 1309.74
    methyl acetate 649.04
    THF 1789.38
    2-butanone 499.05
    n-pentanol 114.77
    sec-butanol 158.05
    n-hexane 40.08
    ethylene glycol 83.03
    NMP 2084.56
    cyclohexane 109.27
    DMSO 711.92
    n-butyl acetate 311.63
    n-octanol 145.03
    chloroform 1221.69
    n-propyl acetate 319.41
    acetic acid 670.25
    dichloromethane 1183.71
    cyclohexanone 1098.13
    propylene glycol 88.67
    isopropyl acetate 344.1
    DMAc 960.75
    2-ethoxyethanol 276.81
    isopentanol 132.19
    n-heptane 44.95
    ethyl formate 509.92
    1,2-dichloroethane 607.4
    n-hexanol 163.15
    2-methoxyethanol 522.63
    isobutyl acetate 179.65
    tetrachloromethane 213.03
    n-pentyl acetate 253.22
    transcutol 742.54
    n-heptanol 95.91
    ethylbenzene 181.54
    MIBK 233.39
    2-propoxyethanol 374.06
    tert-butanol 224.07
    MTBE 254.48
    2-butoxyethanol 194.33
    propionic acid 337.79
    o-xylene 245.35
    formic acid 256.38
    diethyl ether 371.92
    m-xylene 264.37
    p-xylene 245.98
    chlorobenzene 556.65
    dimethyl carbonate 336.23
    n-octane 22.45
    formamide 425.28
    cyclopentanone 1478.64
    2-pentanone 438.41
    anisole 419.52
    cyclopentyl methyl ether 739.02
    gamma-butyrolactone 2017.67
    1-methoxy-2-propanol 376.47
    pyridine 882.91
    3-pentanone 366.91
    furfural 1674.19
    n-dodecane 21.08
    diethylene glycol 296.06
    diisopropyl ether 118.98
    tert-amyl alcohol 192.06
    acetylacetone 800.87
    n-hexadecane 24.98
    acetophenone 420.72
    methyl propionate 504.42
    isopentyl acetate 252.48
    trichloroethylene 1362.27
    n-nonanol 126.88
    cyclohexanol 320.43
    benzyl alcohol 258.19
    2-ethylhexanol 121.91
    isooctanol 77.25
    dipropyl ether 209.36
    1,2-dichlorobenzene 509.29
    ethyl lactate 154.3
    propylene carbonate 1084.23
    n-methylformamide 605.91
    2-pentanol 127.89
    n-pentane 38.9
    1-propoxy-2-propanol 264.99
    1-methoxy-2-propyl acetate 386.65
    2-(2-methoxypropoxy) propanol 244.69
    mesitylene 158.92
    ε-caprolactone 1033.33
    p-cymene 112.46
    epichlorohydrin 1400.65
    1,1,1-trichloroethane 730.21
    2-aminoethanol 131.02
    morpholine-4-carbaldehyde 1634.59
    sulfolane 1639.02
    2,2,4-trimethylpentane 23.18
    2-methyltetrahydrofuran 1089.73
    n-hexyl acetate 382.86
    isooctane 16.27
    2-(2-butoxyethoxy)ethanol 300.27
    sec-butyl acetate 204.55
    tert-butyl acetate 358.28
    decalin 55.17
    glycerin 150.51
    diglyme 620.33
    acrylic acid 387.21
    isopropyl myristate 149.05
    n-butyric acid 394.28
    acetyl acetate 602.26
    di(2-ethylhexyl) phthalate 140.47
    ethyl propionate 337.36
    nitromethane 1661.93
    1,2-diethoxyethane 328.45
    benzonitrile 524.38
    trioctyl phosphate 101.37
    1-bromopropane 281.58
    gamma-valerolactone 1984.87
    n-decanol 93.34
    triethyl phosphate 162.66
    4-methyl-2-pentanol 74.43
    propionitrile 348.5
    vinylene carbonate 1062.05
    1,1,2-trichlorotrifluoroethane 701.15
    DMS 404.19
    cumene 109.02
    2-octanol 89.27
    2-hexanone 267.62
    octyl acetate 192.2
    limonene 171.64
    1,2-dimethoxyethane 662.19
    ethyl orthosilicate 152.39
    tributyl phosphate 133.41
    diacetone alcohol 309.08
    N,N-dimethylaniline 255.97
    acrylonitrile 493.59
    aniline 367.72
    1,3-propanediol 200.41
    bromobenzene 541.8
    dibromomethane 665.92
    1,1,2,2-tetrachloroethane 843.31
    2-methyl-cyclohexyl acetate 247.58
    tetrabutyl urea 176.61
    diisobutyl methanol 83.58
    2-phenylethanol 255.95
    styrene 233.99
    dioctyl adipate 221.95
    dimethyl sulfate 529.79
    ethyl butyrate 278.76
    methyl lactate 233.98
    butyl lactate 177.2
    diethyl carbonate 212.18
    propanediol butyl ether 197.19
    triethyl orthoformate 209.94
    p-tert-butyltoluene 113.94
    methyl 4-tert-butylbenzoate 313.05
    morpholine 1069.82
    tert-butylamine 143.36
    n-dodecanol 72.99
    dimethoxymethane 675.17
    ethylene carbonate 790.26
    cyrene 388.39
    2-ethoxyethyl acetate 356.58
    2-ethylhexyl acetate 221.59
    1,2,4-trichlorobenzene 650.99
    4-methylpyridine 964.35
    dibutyl ether 204.1
    2,6-dimethyl-4-heptanol 83.58
    DEF 600.51
    dimethyl isosorbide 621.8
    tetrachloroethylene 527.6
    eugenol 276.4
    triacetin 413.7
    span 80 229.89
    1,4-butanediol 76.59
    1,1-dichloroethane 631.57
    2-methyl-1-pentanol 107.26
    methyl formate 688.26
    2-methyl-1-butanol 133.26
    n-decane 35.96
    butyronitrile 351.37
    3,7-dimethyl-1-octanol 123.45
    1-chlorooctane 128.67
    1-chlorotetradecane 55.67
    n-nonane 35.32
    undecane 26.64
    tert-butylcyclohexane 44.43
    cyclooctane 39.21
    cyclopentanol 403.41
    tetrahydropyran 835.68
    tert-amyl methyl ether 231.31
    2,5,8-trioxanonane 416.12
    1-hexene 108.64
    2-isopropoxyethanol 190.75
    2,2,2-trifluoroethanol 366.04
    methyl butyrate 403.14

    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