2,2'-Thiodipyridine

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  • Identifiers

    CAS number
    4262-06-0

    Molecular formula
    C10H8N2S

    SMILES
    C1=CC=NC(=C1)SC2=CC=CC=N2

    Safety labels

  • Odor profile

    Fragrance
    Meaty 59.89%
    Sulfurous 54.71%
    Burnt 52.25%
    Nutty 49.84%
    Roasted 48.99%
    Vegetable 45.84%
    Earthy 43.3%
    Coffee 41.37%
    Musty 34.43%
    Mushroom 32.98%

     

    Flavor
    Roasted 48.17%
    Nutty 41.93%
    Coffee 40.73%
    Meaty 35.32%
    Vegetable 33.92%
    Bitter 33.01%
    Sulfury 32.22%
    Cooked 27.52%
    Chocolate 24.31%
    Scallion 23.71%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    2.5

    pKa est.
    3.47 (weak acid)

    Molecular weight
    188.25 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    354°C

    Flash point

    • 152.26 ˚C est.

  • Synonyms

    • 2,2'-Thiodipyridine
    • 4262-06-0
    • 2-pyridin-2-ylsulfanylpyridine
    • Pyridine, 2,2'-thiobis-
    • 2-Pyridinyl sulfide
    • azinyl sulfide
    • pyridyl sulfide
    • 2-pyridyl sulfide
    • di-2-pyridyl sulfide
    • 2-(PYRIDIN-2-YLSULFANYL)PYRIDINE
    • 2,2'-Sulfanediyldipyridine
    • SCHEMBL301719
    • 2-(2-pyridylsulfanyl)pyridine
    • 2-(2-Pyridinylsulfanyl)pyridine
    • DTXSID00334554
    • 2-(2-Pyridinylsulfanyl)pyridine #
    • AKOS006229056
    • FT147004
    • DB-082432
    • NS00096271
    • 262T060
    • 4262-06-0

  • Applications

    2,2'-Thiodipyridine (CAS number: 4262-06-0) is primarily used as a chemical intermediate and a coordinating ligand in industrial synthesis. It serves as a building block for pyridine-containing compounds and related ligands that support metal-catalyzed processes. In polymers and plastics, it may be employed as a chelating or stabilizing additive in formulations to manage trace metals and improve processing stability. In coatings and inks, it can function as a chelating agent or coupling component to enhance formulation performance. In electronics-related materials, it may be explored as a precursor or ligand in coordination-based materials and conductive formulations. In cleaning applications, it may be used as a metal-sequestering chelating agent to improve stain and deposition control. The use and limits are subject to local regulations and formulation constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 67.87
    methanol 62.77
    isopropanol 35.04
    water 0.04
    ethyl acetate 184.75
    n-propanol 52.63
    acetone 323.27
    n-butanol 44.1
    acetonitrile 138.91
    DMF 1014.24
    toluene 210.41
    isobutanol 36.74
    1,4-dioxane 421.67
    methyl acetate 190.44
    THF 811.44
    2-butanone 256.08
    n-pentanol 37.62
    sec-butanol 33.63
    n-hexane 4.5
    ethylene glycol 28.56
    NMP 810.86
    cyclohexane 25.54
    DMSO 1083.72
    n-butyl acetate 108.85
    n-octanol 20.6
    chloroform 654.33
    n-propyl acetate 88.18
    acetic acid 123.61
    dichloromethane 785.09
    cyclohexanone 468.81
    propylene glycol 33.82
    isopropyl acetate 86.0
    DMAc 775.91
    2-ethoxyethanol 98.79
    isopentanol 37.17
    n-heptane 10.85
    ethyl formate 166.16
    1,2-dichloroethane 521.84
    n-hexanol 42.27
    2-methoxyethanol 208.02
    isobutyl acetate 58.24
    tetrachloromethane 50.38
    n-pentyl acetate 61.63
    transcutol 319.09
    n-heptanol 22.49
    ethylbenzene 54.82
    MIBK 78.27
    2-propoxyethanol 104.92
    tert-butanol 44.19
    MTBE 55.29
    2-butoxyethanol 58.46
    propionic acid 93.77
    o-xylene 81.49
    formic acid 36.53
    diethyl ether 99.98
    m-xylene 76.52
    p-xylene 65.91
    chlorobenzene 248.19
    dimethyl carbonate 131.02
    n-octane 3.68
    formamide 102.23
    cyclopentanone 724.58
    2-pentanone 170.69
    anisole 129.08
    cyclopentyl methyl ether 224.44
    gamma-butyrolactone 733.3
    1-methoxy-2-propanol 122.69
    pyridine 674.5
    3-pentanone 169.07
    furfural 674.01
    n-dodecane 3.81
    diethylene glycol 97.63
    diisopropyl ether 24.41
    tert-amyl alcohol 37.82
    acetylacetone 256.72
    n-hexadecane 4.53
    acetophenone 136.01
    methyl propionate 189.5
    isopentyl acetate 88.52
    trichloroethylene 1021.63
    n-nonanol 21.44
    cyclohexanol 76.4
    benzyl alcohol 100.36
    2-ethylhexanol 38.56
    isooctanol 19.74
    dipropyl ether 72.7
    1,2-dichlorobenzene 189.71
    ethyl lactate 48.29
    propylene carbonate 306.39
    n-methylformamide 274.07
    2-pentanol 25.56
    n-pentane 5.31
    1-propoxy-2-propanol 76.56
    1-methoxy-2-propyl acetate 120.32
    2-(2-methoxypropoxy) propanol 71.42
    mesitylene 39.54
    ε-caprolactone 303.34
    p-cymene 38.36
    epichlorohydrin 742.53
    1,1,1-trichloroethane 266.86
    2-aminoethanol 45.03
    morpholine-4-carbaldehyde 529.16
    sulfolane 835.98
    2,2,4-trimethylpentane 4.47
    2-methyltetrahydrofuran 356.61
    n-hexyl acetate 69.69
    isooctane 2.97
    2-(2-butoxyethoxy)ethanol 96.03
    sec-butyl acetate 55.63
    tert-butyl acetate 78.88
    decalin 12.02
    glycerin 64.03
    diglyme 235.41
    acrylic acid 110.39
    isopropyl myristate 34.18
    n-butyric acid 122.59
    acetyl acetate 126.68
    di(2-ethylhexyl) phthalate 40.92
    ethyl propionate 85.79
    nitromethane 382.61
    1,2-diethoxyethane 122.78
    benzonitrile 170.42
    trioctyl phosphate 27.14
    1-bromopropane 168.58
    gamma-valerolactone 683.41
    n-decanol 18.09
    triethyl phosphate 51.58
    4-methyl-2-pentanol 17.96
    propionitrile 121.04
    vinylene carbonate 308.62
    1,1,2-trichlorotrifluoroethane 363.19
    DMS 104.52
    cumene 32.09
    2-octanol 14.39
    2-hexanone 91.34
    octyl acetate 44.12
    limonene 57.22
    1,2-dimethoxyethane 246.83
    ethyl orthosilicate 45.27
    tributyl phosphate 34.96
    diacetone alcohol 90.2
    N,N-dimethylaniline 81.11
    acrylonitrile 202.3
    aniline 186.48
    1,3-propanediol 61.03
    bromobenzene 287.93
    dibromomethane 432.52
    1,1,2,2-tetrachloroethane 648.99
    2-methyl-cyclohexyl acetate 72.98
    tetrabutyl urea 55.92
    diisobutyl methanol 25.83
    2-phenylethanol 83.71
    styrene 92.48
    dioctyl adipate 59.3
    dimethyl sulfate 230.5
    ethyl butyrate 92.18
    methyl lactate 96.23
    butyl lactate 52.5
    diethyl carbonate 70.5
    propanediol butyl ether 49.42
    triethyl orthoformate 65.19
    p-tert-butyltoluene 34.58
    methyl 4-tert-butylbenzoate 82.02
    morpholine 404.13
    tert-butylamine 26.45
    n-dodecanol 16.01
    dimethoxymethane 360.36
    ethylene carbonate 232.74
    cyrene 109.59
    2-ethoxyethyl acetate 106.11
    2-ethylhexyl acetate 74.48
    1,2,4-trichlorobenzene 237.32
    4-methylpyridine 437.29
    dibutyl ether 48.73
    2,6-dimethyl-4-heptanol 25.83
    DEF 279.56
    dimethyl isosorbide 169.7
    tetrachloroethylene 358.89
    eugenol 82.93
    triacetin 88.82
    span 80 61.45
    1,4-butanediol 26.88
    1,1-dichloroethane 293.8
    2-methyl-1-pentanol 36.39
    methyl formate 265.16
    2-methyl-1-butanol 35.81
    n-decane 5.16
    butyronitrile 109.29
    3,7-dimethyl-1-octanol 26.81
    1-chlorooctane 25.92
    1-chlorotetradecane 13.53
    n-nonane 4.34
    undecane 4.36
    tert-butylcyclohexane 8.06
    cyclooctane 7.34
    cyclopentanol 113.84
    tetrahydropyran 345.54
    tert-amyl methyl ether 53.78
    2,5,8-trioxanonane 155.61
    1-hexene 24.55
    2-isopropoxyethanol 59.14
    2,2,2-trifluoroethanol 55.39
    methyl butyrate 124.49

    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