Disulfide, bis(4-methylphenyl)

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  • Identifiers

    CAS number
    103-19-5

    Molecular formula
    C14H14S2

    SMILES
    CC1=CC=C(C=C1)SSC2=CC=C(C=C2)C

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Sulfurous 80.55%
    Meaty 66.94%
    Roasted 58.31%
    Burnt 56.16%
    Coffee 42.61%
    Savory 39.82%
    Garlic 39.58%
    Onion 38.39%
    Smoky 38.06%
    Earthy 36.79%

     

    Flavor
    Meaty 47.93%
    Sulfurous 44.71%
    Onion 39.7%
    Roasted 35.51%
    Sulfury 35.33%
    Garlic 33.7%
    Metallic 29.71%
    Phenolic 29.4%
    Coffee 28.56%
    Turnup 25.01%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    5.1

    pKa est.
    6.92 (neutral)

    Molecular weight
    246.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    418°C

    Flash point

    • 184.93 ˚C est.

  • Synonyms

    • p-Tolyl disulfide
    • 103-19-5
    • Di-p-tolyl disulfide
    • Disulfide, bis(4-methylphenyl)
    • Biodylon
    • Kresulfin
    • Bis(4-methylphenyl) disulfide
    • 4-Methylphenyl disulfide
    • Di-4-tolyl disulfide
    • Bis(p-tolyl) disulfide
    • Bis(4-tolyl) disulfide
    • Di-p-tolyl disulphide
    • Bis(p-methylphenyl) disulfide
    • NSC 994
    • NSC 677466
    • 4,4'-Dimethyldiphenyl disulphide
    • EINECS 203-087-5
    • AI3-16363
    • DTXSID8021852
    • Diptolyl disulfide
    • Di4tolyl disulfide
    • Diptolyl disulphide
    • Bis(ptolyl) disulfide
    • 4Methylphenyl disulfide
    • Bis(4tolyl) disulfide
    • RefChem:589803
    • p-Tolyl disulfide (8CI)
    • Bis(pmethylphenyl) disulfide
    • Bis(4methylphenyl) disulfide
    • Disulfide, bis(4methylphenyl)
    • DTXCID001852
    • 4,4'Dimethyldiphenyl disulphide
    • 203-087-5
    • 1,2-Di-p-tolyldisulfane
    • 1-Methyl-4-[(4-methylphenyl)disulfanyl]benzene
    • p-Tolyldisulfide
    • DI-p-TOLYLDISULFIDE
    • MFCD00008547
    • 1,1'-dithiobis(4-methylbenzene)
    • NSC994
    • NSC-994
    • T434M5FP76
    • NSC677466
    • 1-methyl-4-(p-tolyldisulfanyl)benzene
    • NSC-677466
    • 4-Tolyl disulfide
    • di-p-tolyldisulfid
    • 4-methylphenyldisulfide
    • p-tolyldisulfane
    • p-tolyl-disulfide
    • p-Tolyl disulphide
    • para-Tolyl disulfide
    • Di-4-tolyl disulphide
    • bis-(p-tolyl)disulfide
    • 1,2-dip-tolyldisulfane
    • Vortioxetine Impurity 88
    • di4-methylphenyl disulfide
    • p-Tolyl disulfide, 98%
    • bis(4-methylphenyl)disulfide
    • SCHEMBL57311
    • Di(4-methylphenyl) disulfide
    • UNII-T434M5FP76
    • Bis(p-methylphenyl) disulphide
    • Bis(4-methylphenyl) disulphide
    • CHEMBL121676
    • Disulphide, bis(4-methylphenyl)
    • TZOVOULUMXXLOJ-UHFFFAOYSA-
    • AKOS001086415
    • CS-W014118
    • EBC-656422
    • FD01403
    • 1,1'-Disulfanediylbis(4-methylbenzene)
    • UPCMLD0ENAT5297978:001
    • AS-57904
    • DB-040424
    • NS00020917
    • ST45022173
    • T1074
    • 1-methyl-4-(4-methylphenyl)disulfanylbenzene
    • D70397
    • 1-methyl-4-[(4-methylphenyl)disulphanyl]benzene
    • 1-Methyl-4-[(4-methylphenyl)disulfanyl]benzene #
    • F005543
    • Z56754522
    • F8881-7368
    • InChI=1/C14H14S2/c1-11-3-7-13(8-4-11)15-16-14-9-5-12(2)6-10-14/h3-10H,1-2H3
    • 103-19-5

  • Applications

    Disulfide, bis(4-methylphenyl) (CAS number: 103-19-5) is used primarily as an organic synthesis intermediate to form aryl-disulfide bonds; in polymers/plastics it can function as a crosslinking/functionalizing agent to introduce disulfide linkages into networks; in fragrance and cosmetics it may serve as a sulfur-containing odorant component; in household products it may be added as an odorant ingredient in cleaners and detergents; in coatings/inks it can act as a crosslinker or building block for functional materials in surface coatings and printed formulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 11.5
    methanol 5.48
    isopropanol 7.94
    water 0.0
    ethyl acetate 381.3
    n-propanol 14.27
    acetone 182.33
    n-butanol 13.66
    acetonitrile 76.45
    DMF 248.19
    toluene 352.87
    isobutanol 8.92
    1,4-dioxane 825.42
    methyl acetate 311.78
    THF 1031.64
    2-butanone 318.46
    n-pentanol 17.49
    sec-butanol 17.11
    n-hexane 7.13
    ethylene glycol 1.79
    NMP 273.26
    cyclohexane 27.78
    DMSO 114.7
    n-butyl acetate 276.25
    n-octanol 18.35
    chloroform 843.07
    n-propyl acetate 209.9
    acetic acid 27.8
    dichloromethane 976.66
    cyclohexanone 448.49
    propylene glycol 7.63
    isopropyl acetate 228.68
    DMAc 443.17
    2-ethoxyethanol 83.73
    isopentanol 13.42
    n-heptane 16.24
    ethyl formate 95.73
    1,2-dichloroethane 672.64
    n-hexanol 25.26
    2-methoxyethanol 75.79
    isobutyl acetate 141.7
    tetrachloromethane 44.21
    n-pentyl acetate 117.1
    transcutol 711.49
    n-heptanol 13.28
    ethylbenzene 169.28
    MIBK 120.53
    2-propoxyethanol 98.22
    tert-butanol 17.79
    MTBE 126.92
    2-butoxyethanol 45.35
    propionic acid 33.79
    o-xylene 132.9
    formic acid 3.69
    diethyl ether 175.68
    m-xylene 139.39
    p-xylene 170.5
    chlorobenzene 370.76
    dimethyl carbonate 124.18
    n-octane 7.04
    formamide 18.88
    cyclopentanone 645.44
    2-pentanone 201.19
    anisole 550.04
    cyclopentyl methyl ether 326.53
    gamma-butyrolactone 575.9
    1-methoxy-2-propanol 69.31
    pyridine 835.71
    3-pentanone 260.59
    furfural 504.29
    n-dodecane 6.17
    diethylene glycol 41.36
    diisopropyl ether 61.42
    tert-amyl alcohol 27.93
    acetylacetone 481.86
    n-hexadecane 8.02
    acetophenone 368.99
    methyl propionate 264.04
    isopentyl acetate 249.96
    trichloroethylene 1619.98
    n-nonanol 22.3
    cyclohexanol 31.96
    benzyl alcohol 112.05
    2-ethylhexanol 38.47
    isooctanol 14.88
    dipropyl ether 183.9
    1,2-dichlorobenzene 340.86
    ethyl lactate 57.41
    propylene carbonate 302.89
    n-methylformamide 52.51
    2-pentanol 13.25
    n-pentane 3.8
    1-propoxy-2-propanol 99.37
    1-methoxy-2-propyl acetate 457.09
    2-(2-methoxypropoxy) propanol 152.42
    mesitylene 73.7
    ε-caprolactone 389.92
    p-cymene 85.52
    epichlorohydrin 1056.52
    1,1,1-trichloroethane 464.23
    2-aminoethanol 6.31
    morpholine-4-carbaldehyde 539.74
    sulfolane 438.16
    2,2,4-trimethylpentane 6.26
    2-methyltetrahydrofuran 509.85
    n-hexyl acetate 134.55
    isooctane 4.49
    2-(2-butoxyethoxy)ethanol 157.55
    sec-butyl acetate 187.41
    tert-butyl acetate 294.26
    decalin 24.54
    glycerin 11.01
    diglyme 516.98
    acrylic acid 32.62
    isopropyl myristate 89.5
    n-butyric acid 55.69
    acetyl acetate 278.51
    di(2-ethylhexyl) phthalate 65.49
    ethyl propionate 230.73
    nitromethane 184.53
    1,2-diethoxyethane 567.07
    benzonitrile 188.81
    trioctyl phosphate 29.32
    1-bromopropane 215.9
    gamma-valerolactone 851.44
    n-decanol 18.47
    triethyl phosphate 123.7
    4-methyl-2-pentanol 12.13
    propionitrile 63.49
    vinylene carbonate 277.01
    1,1,2-trichlorotrifluoroethane 300.18
    DMS 287.21
    cumene 79.3
    2-octanol 12.25
    2-hexanone 179.52
    octyl acetate 85.65
    limonene 122.99
    1,2-dimethoxyethane 416.3
    ethyl orthosilicate 116.32
    tributyl phosphate 55.16
    diacetone alcohol 139.65
    N,N-dimethylaniline 239.72
    acrylonitrile 94.54
    aniline 153.95
    1,3-propanediol 11.34
    bromobenzene 566.51
    dibromomethane 485.17
    1,1,2,2-tetrachloroethane 966.74
    2-methyl-cyclohexyl acetate 205.21
    tetrabutyl urea 81.17
    diisobutyl methanol 34.41
    2-phenylethanol 116.88
    styrene 258.41
    dioctyl adipate 154.85
    dimethyl sulfate 190.66
    ethyl butyrate 279.92
    methyl lactate 57.42
    butyl lactate 55.4
    diethyl carbonate 189.22
    propanediol butyl ether 38.07
    triethyl orthoformate 199.58
    p-tert-butyltoluene 84.01
    methyl 4-tert-butylbenzoate 177.76
    morpholine 627.56
    tert-butylamine 12.25
    n-dodecanol 16.57
    dimethoxymethane 277.91
    ethylene carbonate 203.68
    cyrene 158.27
    2-ethoxyethyl acetate 310.44
    2-ethylhexyl acetate 245.01
    1,2,4-trichlorobenzene 468.05
    4-methylpyridine 577.98
    dibutyl ether 150.2
    2,6-dimethyl-4-heptanol 34.41
    DEF 274.54
    dimethyl isosorbide 533.21
    tetrachloroethylene 346.76
    eugenol 126.29
    triacetin 262.28
    span 80 93.45
    1,4-butanediol 6.09
    1,1-dichloroethane 353.23
    2-methyl-1-pentanol 23.41
    methyl formate 61.85
    2-methyl-1-butanol 14.22
    n-decane 9.95
    butyronitrile 57.68
    3,7-dimethyl-1-octanol 35.9
    1-chlorooctane 52.31
    1-chlorotetradecane 25.05
    n-nonane 8.53
    undecane 7.53
    tert-butylcyclohexane 20.53
    cyclooctane 13.04
    cyclopentanol 35.32
    tetrahydropyran 542.8
    tert-amyl methyl ether 127.94
    2,5,8-trioxanonane 367.44
    1-hexene 38.25
    2-isopropoxyethanol 68.23
    2,2,2-trifluoroethanol 13.7
    methyl butyrate 246.9

    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