Clethodim

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  • Identifiers

    CAS number
    99129-21-2

    Molecular formula
    C17H26ClNO3S

    SMILES
    CCC(=NOC/C=C/Cl)C1=C(CC(CC1=O)CC(C)SCC)O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Roasted 52.81%
    Meaty 52.54%
    Savory 33.78%
    Nutty 29.97%
    Cooked 27.17%
    Sulfurous 23.74%
    Grapefruit 23.06%
    Spicy 21.91%
    Onion 21.36%
    Sweet 21.04%

     

    Flavor
    Bitter 32.97%
    Roasted 27.35%
    Cooked 20.39%
    Taco 19.67%
    Cedarleaf 19.47%
    Odorless 19.46%
    Matches 19.41%
    Leaves 19.22%
    Lovage 19.02%
    Acrid 19.02%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    3.8

    pKa est.
    7.32 (neutral)

    Molecular weight
    359.9 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point

    • Decomposes below boiling point

    Flash point

    • 175.18 ˚C est.
    • 162 °F (72 °C) (Closed cup) /Select Max Herbicide/

    Solubility expt.

    • Soluble in most organic solvents

  • Synonyms

    • DTXSID3034458
    • Volunteer
    • Select
    • Ogive
    • Prism
    • 05SB62IB6F
    • CHEBI:70721
    • Trigger
    • 2-((1E)-N-(((2E)-3-chloro-2-propen-1-yl)oxy)propanimidoyl)-5-(2-(ethylsulfanyl)propyl)-3-hydroxy-2-cyclohexen-1-one
    • RefChem:577713
    • DTXCID701478312
    • 2-(N-(((2E)-3-chloroprop-2-en-1-yl)oxy)propanimidoyl)-5-(2-(ethylsulfanyl)propyl)-3-hydroxycyclohex-2-en-1-one
    • 2-(N-{[(2E)-3-chloroprop-2-en-1-yl]oxy}propanimidoyl)-5-[2-(ethylsulfanyl)propyl]-3-hydroxycyclohex-2-en-1-one
    • RE-45601
    • 619-396-7
    • 2-Cyclohexen-1-one, 2-(1-(((3-chloro-2-propenyl)oxy)imino)propyl)-5-(2-(ethylthio)propyl)-3-hydroxy-
    • 99129-21-2
    • Centurion
    • Clethodim
    • SCHEMBL336563
    • SCHEMBL10768649
    • SILSDTWXNBZOGF-JWGBMQLESA-N
    • NS00019754
    • Q2642646
    • 2-[N-[(E)-3-chloroprop-2-enoxy]-C-ethylcarbonimidoyl]-5-(2-ethylsulfanylpropyl)-3-hydroxycyclohex-2-en-1-one
    • 99129-21-2

  • Applications

    Clethodim (CAS 99129-21-2) is a selective herbicide in the acylcyclohexanedione family, used primarily in agriculture to control grassy weeds in broadleaf crops; it is typically applied post-emergence and formulated as an emulsifiable concentrate (EC) or suspension (ME), with common use in crops such as soybean, peanut, cotton, and certain vegetables, and it is also employed in turf and landscape management and ornamental horticulture to maintain weed-free grassy areas.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 138.45
    methanol 128.21
    isopropanol 90.69
    water 0.06
    ethyl acetate 276.98
    n-propanol 115.51
    acetone 690.14
    n-butanol 104.16
    acetonitrile 204.05
    DMF 960.39
    toluene 241.34
    isobutanol 85.97
    1,4-dioxane 370.27
    methyl acetate 249.52
    THF 1079.32
    2-butanone 375.62
    n-pentanol 88.36
    sec-butanol 80.07
    n-hexane 2.02
    ethylene glycol 19.47
    NMP 1018.98
    cyclohexane 9.59
    DMSO 1307.09
    n-butyl acetate 155.58
    n-octanol 30.95
    chloroform 1305.53
    n-propyl acetate 163.24
    acetic acid 421.53
    dichloromethane 1419.65
    cyclohexanone 848.36
    propylene glycol 47.04
    isopropyl acetate 168.59
    DMAc 863.41
    2-ethoxyethanol 182.91
    isopentanol 94.87
    n-heptane 1.75
    ethyl formate 180.19
    1,2-dichloroethane 916.73
    n-hexanol 64.04
    2-methoxyethanol 296.26
    isobutyl acetate 100.6
    tetrachloromethane 83.6
    n-pentyl acetate 131.24
    transcutol 614.73
    n-heptanol 34.74
    ethylbenzene 65.34
    MIBK 193.97
    2-propoxyethanol 188.82
    tert-butanol 99.69
    MTBE 82.63
    2-butoxyethanol 116.89
    propionic acid 156.65
    o-xylene 96.03
    formic acid 92.57
    diethyl ether 95.71
    m-xylene 118.71
    p-xylene 89.9
    chlorobenzene 440.33
    dimethyl carbonate 160.04
    n-octane 1.1
    formamide 170.83
    cyclopentanone 1120.51
    2-pentanone 337.15
    anisole 173.58
    cyclopentyl methyl ether 340.56
    gamma-butyrolactone 1058.7
    1-methoxy-2-propanol 235.49
    pyridine 669.29
    3-pentanone 219.21
    furfural 872.03
    n-dodecane 1.28
    diethylene glycol 151.69
    diisopropyl ether 22.44
    tert-amyl alcohol 79.86
    acetylacetone 574.76
    n-hexadecane 1.62
    acetophenone 242.67
    methyl propionate 248.5
    isopentyl acetate 140.99
    trichloroethylene 2057.29
    n-nonanol 31.07
    cyclohexanol 170.06
    benzyl alcohol 186.77
    2-ethylhexanol 45.19
    isooctanol 32.01
    dipropyl ether 43.94
    1,2-dichlorobenzene 356.79
    ethyl lactate 89.97
    propylene carbonate 485.78
    n-methylformamide 298.54
    2-pentanol 58.15
    n-pentane 2.21
    1-propoxy-2-propanol 134.91
    1-methoxy-2-propyl acetate 222.61
    2-(2-methoxypropoxy) propanol 140.22
    mesitylene 53.99
    ε-caprolactone 561.35
    p-cymene 36.69
    epichlorohydrin 1289.1
    1,1,1-trichloroethane 629.95
    2-aminoethanol 59.83
    morpholine-4-carbaldehyde 762.25
    sulfolane 1379.38
    2,2,4-trimethylpentane 2.62
    2-methyltetrahydrofuran 499.66
    n-hexyl acetate 146.94
    isooctane 1.94
    2-(2-butoxyethoxy)ethanol 172.09
    sec-butyl acetate 98.73
    tert-butyl acetate 186.9
    decalin 6.22
    glycerin 84.82
    diglyme 368.6
    acrylic acid 180.42
    isopropyl myristate 46.88
    n-butyric acid 268.66
    acetyl acetate 251.9
    di(2-ethylhexyl) phthalate 77.36
    ethyl propionate 129.79
    nitromethane 807.85
    1,2-diethoxyethane 150.36
    benzonitrile 278.16
    trioctyl phosphate 44.83
    1-bromopropane 248.29
    gamma-valerolactone 1259.43
    n-decanol 22.11
    triethyl phosphate 67.44
    4-methyl-2-pentanol 39.44
    propionitrile 141.09
    vinylene carbonate 435.17
    1,1,2-trichlorotrifluoroethane 780.73
    DMS 174.8
    cumene 37.53
    2-octanol 24.08
    2-hexanone 177.37
    octyl acetate 68.38
    limonene 54.39
    1,2-dimethoxyethane 290.2
    ethyl orthosilicate 58.08
    tributyl phosphate 59.2
    diacetone alcohol 242.51
    N,N-dimethylaniline 113.5
    acrylonitrile 242.8
    aniline 285.05
    1,3-propanediol 109.2
    bromobenzene 470.53
    dibromomethane 742.04
    1,1,2,2-tetrachloroethane 1322.96
    2-methyl-cyclohexyl acetate 119.86
    tetrabutyl urea 88.74
    diisobutyl methanol 26.58
    2-phenylethanol 150.73
    styrene 105.55
    dioctyl adipate 100.44
    dimethyl sulfate 352.85
    ethyl butyrate 113.46
    methyl lactate 149.05
    butyl lactate 111.77
    diethyl carbonate 80.94
    propanediol butyl ether 119.84
    triethyl orthoformate 79.08
    p-tert-butyltoluene 33.13
    methyl 4-tert-butylbenzoate 167.13
    morpholine 529.47
    tert-butylamine 38.95
    n-dodecanol 16.03
    dimethoxymethane 396.6
    ethylene carbonate 329.57
    cyrene 218.12
    2-ethoxyethyl acetate 223.97
    2-ethylhexyl acetate 107.59
    1,2,4-trichlorobenzene 471.2
    4-methylpyridine 642.01
    dibutyl ether 39.45
    2,6-dimethyl-4-heptanol 26.58
    DEF 357.46
    dimethyl isosorbide 318.51
    tetrachloroethylene 671.26
    eugenol 163.3
    triacetin 199.83
    span 80 126.7
    1,4-butanediol 52.16
    1,1-dichloroethane 662.37
    2-methyl-1-pentanol 83.04
    methyl formate 268.61
    2-methyl-1-butanol 90.45
    n-decane 2.19
    butyronitrile 164.87
    3,7-dimethyl-1-octanol 38.82
    1-chlorooctane 24.78
    1-chlorotetradecane 8.34
    n-nonane 1.77
    undecane 1.61
    tert-butylcyclohexane 4.31
    cyclooctane 2.53
    cyclopentanol 215.42
    tetrahydropyran 416.01
    tert-amyl methyl ether 70.41
    2,5,8-trioxanonane 234.64
    1-hexene 19.93
    2-isopropoxyethanol 123.3
    2,2,2-trifluoroethanol 164.12
    methyl butyrate 194.52

    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