Silthiofam

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  • Identifiers

    CAS number
    175217-20-6

    Molecular formula
    C13H21NOSSi

    SMILES
    CC1=C(SC(=C1C(=O)NCC=C)[Si](C)(C)C)C

    Safety labels

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Meaty 43.15%
    Roasted 37.81%
    Savory 33.91%
    Odorless 29.66%
    Grapefruit 28.51%
    Cooked 25.89%
    Cooling 25.83%
    Mint 25.47%
    Sulfurous 24.69%
    Citrus 23.8%

     

    Flavor
    Bitter 26.05%
    Roasted 24.4%
    Green pepper 20.82%
    Syrup 20.22%
    Taco 20.22%
    Carrot 20.02%
    Roasted peanuts 19.78%
    Broom 19.59%
    Shellfish 19.52%
    Burnt 19.47%

     

    Odor impact est.
    Medium

  • Properties

    pKa est.
    7.68 (neutral)

    Molecular weight
    267.46 g/mol

    Flash point

    • 123.51 ˚C est.

  • Synonyms

    • silthiofam
    • 175217-20-6
    • Silthiopham
    • N-allyl-4,5-dimethyl-2-(trimethylsilyl)thiophene-3-carboxamide
    • 5991I541GW
    • DTXSID1058000
    • CHEBI:83393
    • 4,5-dimethyl-N-2-propenyl-2-(trimethylsilyl)-3-thiophenecarboxamide
    • RefChem:183020
    • DTXCID0031768
    • 605-752-9
    • Silthiofam [ISO]
    • MFCD04112621
    • Latitude
    • Silthiofam 10 microg/mL in Cyclohexane
    • 4,5-dimethyl-N-prop-2-enyl-2-trimethylsilylthiophene-3-carboxamide
    • 4,5-dimethyl-N-(prop-2-en-1-yl)-2-(trimethylsilyl)thiophene-3-carboxamide
    • MON-65500
    • ilthiofam
    • UNII-5991I541GW
    • C13H21NOSSi
    • SCHEMBL22041
    • orb1705514
    • orb3025102
    • CHEMBL2288019
    • MXMXHPPIGKYTAR-UHFFFAOYSA-N
    • AHA21720
    • MSK21237
    • AKOS037621188
    • CS-12584
    • DB-044160
    • HY-123096
    • Silthiofam 100 microg/mL in Ethyl acetate
    • NS00066833
    • Silthiofam, PESTANAL(R), analytical standard
    • Q18630756
    • N-allyl-4,5-dimethyl-2-trimethylsilyl-thiophene-3-carboxamide
    • N-Allyl-4,5-Dimethyl-2-(Trimethylsilyl)-3-Thiophenecarboxamide
    • 4,5-dimethyl-N-(2-propen-1-yl)-2-(trimethylsilyl)thiophene-3-carboxamide
    • 4,5-dimethyl-N-2-propen-1-yl-2-(trimethylsilyl)-3-thiophenecarboxamide
    • 175217-20-6

  • Applications

    Silthiofam (CAS 175217-20-6) is used primarily as a fungicidal active ingredient in crop protection formulations. In agricultural settings, it is commonly applied to a range of crops—including field cereals, vegetables, and fruits—via foliar sprays, soil drenches, or seed treatments to help control fungal diseases. It is formulated for use in sprayable formats such as emulsifiable concentrates (EC) and wettable powders (WP), supporting integration into standard pest management programs. As a seed treatment, it protects seeds and emerging seedlings against soil‑borne and seedborne pathogens, while in greenhouse and field applications it contributes to disease suppression during crop development. Given its role as a fungicide, its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 45.87
    methanol 44.07
    isopropanol 50.02
    water 0.16
    ethyl acetate 62.94
    n-propanol 56.04
    acetone 105.71
    n-butanol 56.67
    acetonitrile 30.77
    DMF 330.56
    toluene 67.45
    isobutanol 47.29
    1,4-dioxane 127.34
    methyl acetate 71.31
    THF 305.12
    2-butanone 115.7
    n-pentanol 53.28
    sec-butanol 57.22
    n-hexane 6.45
    ethylene glycol 17.44
    NMP 274.75
    cyclohexane 9.2
    DMSO 137.1
    n-butyl acetate 76.65
    n-octanol 49.27
    chloroform 151.27
    n-propyl acetate 60.35
    acetic acid 27.55
    dichloromethane 109.17
    cyclohexanone 199.97
    propylene glycol 29.45
    isopropyl acetate 56.51
    DMAc 274.97
    2-ethoxyethanol 71.62
    isopentanol 49.86
    n-heptane 7.99
    ethyl formate 49.09
    1,2-dichloroethane 97.94
    n-hexanol 76.41
    2-methoxyethanol 102.47
    isobutyl acetate 59.43
    tetrachloromethane 22.23
    n-pentyl acetate 79.85
    transcutol 73.35
    n-heptanol 54.98
    ethylbenzene 44.63
    MIBK 77.89
    2-propoxyethanol 126.32
    tert-butanol 56.78
    MTBE 64.5
    2-butoxyethanol 90.07
    propionic acid 39.69
    o-xylene 45.64
    formic acid 12.51
    diethyl ether 55.67
    m-xylene 54.96
    p-xylene 53.72
    chlorobenzene 89.44
    dimethyl carbonate 49.15
    n-octane 7.0
    formamide 21.54
    cyclopentanone 278.49
    2-pentanone 101.17
    anisole 83.95
    cyclopentyl methyl ether 116.51
    gamma-butyrolactone 202.65
    1-methoxy-2-propanol 102.84
    pyridine 124.21
    3-pentanone 83.28
    furfural 173.73
    n-dodecane 6.81
    diethylene glycol 80.34
    diisopropyl ether 23.37
    tert-amyl alcohol 57.84
    acetylacetone 111.73
    n-hexadecane 7.83
    acetophenone 97.27
    methyl propionate 74.97
    isopentyl acetate 83.69
    trichloroethylene 179.99
    n-nonanol 48.1
    cyclohexanol 62.44
    benzyl alcohol 73.89
    2-ethylhexanol 50.05
    isooctanol 46.95
    dipropyl ether 43.8
    1,2-dichlorobenzene 87.82
    ethyl lactate 47.84
    propylene carbonate 115.54
    n-methylformamide 78.3
    2-pentanol 44.77
    n-pentane 7.01
    1-propoxy-2-propanol 93.02
    1-methoxy-2-propyl acetate 96.79
    2-(2-methoxypropoxy) propanol 71.78
    mesitylene 34.37
    ε-caprolactone 137.62
    p-cymene 36.68
    epichlorohydrin 200.48
    1,1,1-trichloroethane 84.35
    2-aminoethanol 33.93
    morpholine-4-carbaldehyde 211.11
    sulfolane 237.13
    2,2,4-trimethylpentane 5.73
    2-methyltetrahydrofuran 144.33
    n-hexyl acetate 86.36
    isooctane 5.08
    2-(2-butoxyethoxy)ethanol 81.13
    sec-butyl acetate 52.07
    tert-butyl acetate 68.49
    decalin 9.56
    glycerin 43.17
    diglyme 127.84
    acrylic acid 38.02
    isopropyl myristate 43.12
    n-butyric acid 54.88
    acetyl acetate 42.26
    di(2-ethylhexyl) phthalate 52.95
    ethyl propionate 55.02
    nitromethane 65.46
    1,2-diethoxyethane 55.09
    benzonitrile 92.04
    trioctyl phosphate 41.37
    1-bromopropane 61.27
    gamma-valerolactone 280.01
    n-decanol 38.08
    triethyl phosphate 38.05
    4-methyl-2-pentanol 34.24
    propionitrile 48.12
    vinylene carbonate 100.01
    1,1,2-trichlorotrifluoroethane 118.81
    DMS 69.5
    cumene 34.49
    2-octanol 47.69
    2-hexanone 87.52
    octyl acetate 54.77
    limonene 45.99
    1,2-dimethoxyethane 130.68
    ethyl orthosilicate 37.43
    tributyl phosphate 39.42
    diacetone alcohol 86.7
    N,N-dimethylaniline 72.31
    acrylonitrile 58.92
    aniline 62.65
    1,3-propanediol 44.97
    bromobenzene 90.49
    dibromomethane 83.27
    1,1,2,2-tetrachloroethane 153.81
    2-methyl-cyclohexyl acetate 71.45
    tetrabutyl urea 63.32
    diisobutyl methanol 31.84
    2-phenylethanol 92.41
    styrene 50.03
    dioctyl adipate 53.27
    dimethyl sulfate 84.78
    ethyl butyrate 55.95
    methyl lactate 57.21
    butyl lactate 66.82
    diethyl carbonate 36.4
    propanediol butyl ether 70.29
    triethyl orthoformate 45.95
    p-tert-butyltoluene 36.0
    methyl 4-tert-butylbenzoate 92.95
    morpholine 144.5
    tert-butylamine 33.26
    n-dodecanol 30.54
    dimethoxymethane 145.02
    ethylene carbonate 80.26
    cyrene 112.92
    2-ethoxyethyl acetate 88.67
    2-ethylhexyl acetate 73.26
    1,2,4-trichlorobenzene 98.99
    4-methylpyridine 141.23
    dibutyl ether 38.21
    2,6-dimethyl-4-heptanol 31.84
    DEF 112.64
    dimethyl isosorbide 141.6
    tetrachloroethylene 91.33
    eugenol 103.26
    triacetin 69.98
    span 80 72.38
    1,4-butanediol 30.26
    1,1-dichloroethane 85.47
    2-methyl-1-pentanol 51.18
    methyl formate 67.7
    2-methyl-1-butanol 51.7
    n-decane 10.63
    butyronitrile 57.72
    3,7-dimethyl-1-octanol 43.01
    1-chlorooctane 37.31
    1-chlorotetradecane 19.35
    n-nonane 9.03
    undecane 8.36
    tert-butylcyclohexane 9.34
    cyclooctane 4.87
    cyclopentanol 76.49
    tetrahydropyran 119.46
    tert-amyl methyl ether 56.61
    2,5,8-trioxanonane 95.81
    1-hexene 26.76
    2-isopropoxyethanol 65.49
    2,2,2-trifluoroethanol 20.25
    methyl butyrate 75.54

    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