Phorate

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  • Identifiers

    CAS number
    298-02-2

    Molecular formula
    C7H17O2PS3

    SMILES
    CCOP(=S)(OCC)SCSCC

    Safety labels

    Acute Toxic
    Acute Toxic

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Sulfurous 70.74%
    Onion 53.84%
    Meaty 51.59%
    Roasted 45.15%
    Savory 42.19%
    Garlic 39.65%
    Tropical 37.23%
    Alliaceous 36.68%
    Fruity 34.82%
    Cooked 33.55%

     

    Flavor
    Sulfurous 51.67%
    Onion 50.18%
    Sulfury 47.29%
    Garlic 41.52%
    Cabbage 39.72%
    Green 36.0%
    Meaty 35.79%
    Fruity 32.41%
    Cooked 31.79%
    Vegetable 31.42%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    3.6

    pKa est.
    2.48 (strong acid)

    Molecular weight
    260.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very slow

    Melting point expt.

    • -45 °F (EPA, 1998)
    • <-15 °C
    • -42.9 °C
    • -45 °F

    Boiling point

    • 257 to 261 °F at 2 mmHg (EPA, 1998)
    • 75-78 °C @ 0.1 mm Hg; 118-120 °C @ 0.8 mm Hg; 125-127 °C @ 2.0 mm Hg
    • 257-261 °F

    Flash point

    • 131.37 ˚C est.
    • 320 °F (NIOSH, 2024)
    • 160 °C (Open cup)
    • 160 °C o.c.
    • 320 °F (open cup)
    • (oc) 320 °F

    Solubility expt.

    • 0.005 % (NIOSH, 2024)
    • Soluble in most organic solvents such as acetone.
    • Miscible with xylene, carbon tetrachloride, dioxane, methyl cellosolve, dibutyl phthalate, vegetable oils
    • In water, 50 mg/l @ 25 °C
    • Solubility in water: none
    • 0.005%

  • Synonyms

    • phorate
    • Thimet
    • 298-02-2
    • Granutox
    • Agrimet
    • Timet
    • Thimet 10G
    • Rampart
    • Thimenox
    • Geomet
    • Vegfru
    • Thimet 10-G
    • Vegfru foratox
    • American cyanamid 3,911
    • O,O-Diethyl S-ethylmercaptomethyl dithiophosphate
    • Foraat
    • Phorat
    • VUAgT 182
    • Caswell No. 660
    • Thimet G
    • Rcra waste number P094
    • Phorate [ISO]
    • Phorate 10G
    • Phosphorodithioic acid, O,O-diethyl S-((ethylthio)methyl) ester
    • Phorate [ANSI:BSI:ISO]
    • Thimet 10 G
    • O,O-Diethyl S-(ethylthio)methyl phosphorodithioate
    • Experimental insecticide 3911
    • CCRIS 2747
    • Thimate
    • Volphor
    • Forate
    • Phosphorodithioic acid, O,O-diethyl S-[(ethylthio)methyl] ester
    • ENT 24,042
    • AC 3911
    • HSDB 1183
    • EINECS 206-052-2
    • UNII-3W54X3W9IV
    • EI3911
    • L 11/6
    • EPA Pesticide Chemical Code 057201
    • BRN 1708517
    • 3W54X3W9IV
    • DTXSID4032459
    • CHEBI:38764
    • Phorate, 85%
    • AI3-24042
    • O,O-Diethyl ethylthiomethyl phosphorodithioate
    • PHORATE [HSDB]
    • PHORATE [MI]
    • O,O-Diethyl S-ethylthiomethyl dithiophosphonate
    • O,O-Diethyl S-ethylthiomethyl thiothionophosphate
    • O,O-Diethyl S-(ethylthiomethyl) phosphorodithioate
    • phosphatidylcholine O-34:2
    • o,o-Diethyl S-[(ethylsulfanyl)methyl] dithiophosphate
    • O,O-Dietil-S-(etiltio-metil)-ditiofosfato
    • DTXCID2012459
    • O,O-Diethyl S-ethylthiomethyl dithiophosphate
    • O,O-Diethyl-S-(ethylthio-methyl)-dithiofosfaat
    • O,O-Diaethyl-S-(aethylthio-methyl)-dithiophosphat
    • Dithiophosphate de O,O-diethyle et D'ethylthiomethyle
    • ENT-24042
    • AC-3911
    • EI-3911
    • O,O-diethyl S-[(ethylsulfanyl)methyl] phosphorodithioate
    • Phosphorodithioic acid, O,O-diethyl S-(ethylthio)methyl ester
    • o,o-diethyl s-ethylthiomethyl phosphorodithioate
    • Phorat [German]
    • Foraat [Dutch]
    • Phorate (ANSI:BSI:ISO)
    • Phorate-10G
    • O,O-Diethyl S-[(ethylthio)methyl] phosphorodithioate
    • O,O-DIETHYL S-((ETHYLTHIO)METHYL) PHOSPHORODITHIOATE
    • Aastar
    • suScon FuMing
    • Methanethiol, (ethylthio)-, S-ester with O,O-diethyl phosphorodithioic acid
    • American Cyanamid 3911
    • O,O-Diethyl S-((ethylsulfanyl)methyl) dithiophosphate
    • RCRA waste no. P094
    • O,O-diethyl S-((ethylsulfanyl)methyl) phosphorodithioate
    • Terrathion
    • O,O-diethyl (((ethylsulfanyl)methyl)sulfanyl)phosphonothioate
    • O,O-diethyl {[(ethylsulfanyl)methyl]sulfanyl}phosphonothioate
    • Vegfru foratox.
    • Phorate10G
    • O,O-Diethyl S-ethylmercaptomethyl dithiophosphonate
    • O,O-Diethyl-S-((ethylthio)methyl)phosphorodithioate
    • Phorate (ACGIH)
    • O,O-Dietil-S-(etiltio-metil)-ditiofosfato [Italian]
    • O,O-Diethyl-S-(ethylthio-methyl)-dithiofosfaat [Dutch]
    • Spectrum_001801
    • O,O-Diaethyl-S-(aethylthio-methyl)-dithiophosphat [German]
    • SpecPlus_000392
    • Dithiophosphate de O,O-diethyle et d'ethylthiomethyle [French]
    • Spectrum2_001860
    • Spectrum3_000816
    • Spectrum4_000656
    • Spectrum5_001942
    • Methanethiol, (ethylthio)-, S-ester with O,O-diethyl phosphorodithioate
    • Methanethiol, (ethylthio)-, S-ester with O,O-diethylphosphorodithioate
    • SCHEMBL26312
    • BSPBio_002311
    • KBioGR_001031
    • KBioSS_002294
    • DivK1c_006488
    • SPBio_001680
    • CHEMBL510014
    • KBio1_001432
    • KBio2_002292
    • KBio2_004860
    • KBio2_007428
    • KBio3_001811
    • O,ODietilS(etiltiometil)ditiofosfato
    • Phorate 100 microg/mL in Methanol
    • Tox21_300398
    • CCG-39364
    • ENT 24042
    • Phorate 10 microg/mL in Cyclohexane
    • Phorate 1000 microg/mL in Acetone
    • Phorate 1000 microg/mL in Toluene
    • Phorate 1000 microg/mL in Methanol
    • AKOS015898767
    • Phorate 100 microg/mL in Cyclohexane
    • EI 3911
    • USEPA/OPP Pesticide Code: 057201
    • NCGC00163889-01
    • NCGC00163889-02
    • NCGC00163889-03

  • Applications

    Phorate is an organophosphate insecticide used primarily in agriculture to control soil-dwelling pests in the root zone. Common applications include soil treatment and root drench to manage pests such as wireworms and root weevils in crops like corn, potatoes and sugar beets; formulated as granular or emulsifiable concentrate (EC) products and applied by soil incorporation or root irrigation for field and greenhouse crops; used in professional greenhouse and field crop protection programs; and often integrated into broader pest management plans, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 562.4
    methanol 686.04
    isopropanol 417.91
    water 2.53
    ethyl acetate 607.9
    n-propanol 513.46
    acetone 1023.4
    n-butanol 446.88
    acetonitrile 782.75
    DMF 2416.03
    toluene 696.1
    isobutanol 391.09
    1,4-dioxane 1462.29
    methyl acetate 724.59
    THF 2074.78
    2-butanone 826.05
    n-pentanol 381.88
    sec-butanol 430.77
    n-hexane 89.54
    ethylene glycol 223.05
    NMP 2493.68
    cyclohexane 383.55
    DMSO 2066.34
    n-butyl acetate 648.45
    n-octanol 315.26
    chloroform 3365.54
    n-propyl acetate 555.28
    acetic acid 929.03
    dichloromethane 2866.57
    cyclohexanone 2003.94
    propylene glycol 249.73
    isopropyl acetate 414.38
    DMAc 1643.65
    2-ethoxyethanol 568.88
    isopentanol 351.4
    n-heptane 125.52
    ethyl formate 631.41
    1,2-dichloroethane 1684.31
    n-hexanol 402.27
    2-methoxyethanol 910.92
    isobutyl acetate 388.31
    tetrachloromethane 593.04
    n-pentyl acetate 617.68
    transcutol 965.29
    n-heptanol 277.86
    ethylbenzene 317.51
    MIBK 407.15
    2-propoxyethanol 639.22
    tert-butanol 476.2
    MTBE 511.25
    2-butoxyethanol 468.52
    propionic acid 565.5
    o-xylene 412.36
    formic acid 356.4
    diethyl ether 563.01
    m-xylene 383.48
    p-xylene 418.37
    chlorobenzene 1124.31
    dimethyl carbonate 380.84
    n-octane 70.96
    formamide 528.43
    cyclopentanone 2086.84
    2-pentanone 650.4
    anisole 601.18
    cyclopentyl methyl ether 969.43
    gamma-butyrolactone 2101.2
    1-methoxy-2-propanol 572.99
    pyridine 1717.99
    3-pentanone 614.9
    furfural 2160.98
    n-dodecane 60.12
    diethylene glycol 511.77
    diisopropyl ether 200.99
    tert-amyl alcohol 423.49
    acetylacetone 792.76
    n-hexadecane 68.22
    acetophenone 686.41
    methyl propionate 583.13
    isopentyl acetate 556.55
    trichloroethylene 3004.01
    n-nonanol 281.99
    cyclohexanol 752.26
    benzyl alcohol 565.46
    2-ethylhexanol 314.74
    isooctanol 235.88
    dipropyl ether 419.5
    1,2-dichlorobenzene 1003.15
    ethyl lactate 273.31
    propylene carbonate 1130.1
    n-methylformamide 956.94
    2-pentanol 309.82
    n-pentane 120.48
    1-propoxy-2-propanol 488.3
    1-methoxy-2-propyl acetate 557.8
    2-(2-methoxypropoxy) propanol 361.39
    mesitylene 260.49
    ε-caprolactone 1457.41
    p-cymene 259.52
    epichlorohydrin 1974.9
    1,1,1-trichloroethane 1546.05
    2-aminoethanol 338.23
    morpholine-4-carbaldehyde 1968.56
    sulfolane 2609.57
    2,2,4-trimethylpentane 70.42
    2-methyltetrahydrofuran 1344.03
    n-hexyl acetate 661.01
    isooctane 47.72
    2-(2-butoxyethoxy)ethanol 498.48
    sec-butyl acetate 354.61
    tert-butyl acetate 457.22
    decalin 135.89
    glycerin 376.4
    diglyme 996.84
    acrylic acid 599.08
    isopropyl myristate 282.93
    n-butyric acid 712.31
    acetyl acetate 521.74
    di(2-ethylhexyl) phthalate 288.43
    ethyl propionate 427.17
    nitromethane 1705.49
    1,2-diethoxyethane 584.99
    benzonitrile 978.16
    trioctyl phosphate 222.58
    1-bromopropane 891.19
    gamma-valerolactone 2598.13
    n-decanol 213.28
    triethyl phosphate 281.57
    4-methyl-2-pentanol 183.65
    propionitrile 683.69
    vinylene carbonate 1202.94
    1,1,2-trichlorotrifluoroethane 1430.86
    DMS 490.26
    cumene 207.05
    2-octanol 247.92
    2-hexanone 549.98
    octyl acetate 351.17
    limonene 410.62
    1,2-dimethoxyethane 1088.63
    ethyl orthosilicate 271.53
    tributyl phosphate 269.14
    diacetone alcohol 458.21
    N,N-dimethylaniline 457.0
    acrylonitrile 877.08
    aniline 698.0
    1,3-propanediol 435.19
    bromobenzene 1247.33
    dibromomethane 1983.46
    1,1,2,2-tetrachloroethane 2464.53
    2-methyl-cyclohexyl acetate 496.15
    tetrabutyl urea 388.82
    diisobutyl methanol 208.61
    2-phenylethanol 532.56
    styrene 471.06
    dioctyl adipate 393.09
    dimethyl sulfate 676.87
    ethyl butyrate 487.74
    methyl lactate 348.8
    butyl lactate 416.81
    diethyl carbonate 366.23
    propanediol butyl ether 432.87
    triethyl orthoformate 397.53
    p-tert-butyltoluene 250.62
    methyl 4-tert-butylbenzoate 513.1
    morpholine 1538.47
    tert-butylamine 314.02
    n-dodecanol 173.76
    dimethoxymethane 923.17
    ethylene carbonate 1029.82
    cyrene 605.44
    2-ethoxyethyl acetate 670.07
    2-ethylhexyl acetate 516.46
    1,2,4-trichlorobenzene 1151.7
    4-methylpyridine 1546.3
    dibutyl ether 415.65
    2,6-dimethyl-4-heptanol 208.61
    DEF 966.21
    dimethyl isosorbide 834.78
    tetrachloroethylene 1555.92
    eugenol 506.36
    triacetin 587.91
    span 80 446.06
    1,4-butanediol 240.28
    1,1-dichloroethane 1410.47
    2-methyl-1-pentanol 329.22
    methyl formate 815.05
    2-methyl-1-butanol 366.76
    n-decane 96.63
    butyronitrile 737.45
    3,7-dimethyl-1-octanol 268.55
    1-chlorooctane 318.49
    1-chlorotetradecane 142.34
    n-nonane 96.13
    undecane 72.91
    tert-butylcyclohexane 97.55
    cyclooctane 128.55
    cyclopentanol 797.69
    tetrahydropyran 1413.11
    tert-amyl methyl ether 421.63
    2,5,8-trioxanonane 682.87
    1-hexene 263.42
    2-isopropoxyethanol 399.82
    2,2,2-trifluoroethanol 407.95
    methyl butyrate 617.01

    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