Pirimiphos-methyl

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  • Identifiers

    CAS number
    29232-93-7

    Molecular formula
    C11H20N3O3PS

    SMILES
    CCN(CC)C1=NC(=CC(=N1)OP(=S)(OC)OC)C

    Safety labels

    Irritant
    Irritant

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Odorless 46.98%
    Roasted 27.82%
    Meaty 26.99%
    Savory 25.5%
    Cooling 22.26%
    Grape 20.75%
    Sulfurous 20.21%
    Cooked 19.13%
    Fresh 18.67%
    Mint 18.28%

     

    Flavor
    Bitter 35.52%
    Fruity 24.8%
    Odorless 24.42%
    Bland 24.08%
    Roasted 22.8%
    Mild 22.8%
    Carrot 20.36%
    Green pepper 20.11%
    Scallion 19.96%
    Taco 19.9%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    4.2

    pKa est.
    4.32 (weak acid)

    Molecular weight
    305.34 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately slow

    Melting point expt.

    • MP: 15-18 °C /Technical/

    Boiling point

    • Decomposes on distillation
    • decomposes

    Flash point

    • 157.33 ˚C est.

    Solubility expt.

    • In water (mg/L at 20 °C): 11 (pH 5); 10 (pH 7); 9.7 (pH 9)
    • In water, 5 mg/L at 30 °C
    • Miscible with most organic solvents

  • Synonyms

    • Pirimiphos-methyl
    • 29232-93-7
    • PIRIMIPHOS METHYL
    • Pyrimiphos methyl
    • Pirimifosmethyl
    • Actellifog
    • Actelic
    • Silosan
    • pirimiphosmethyl
    • Methylpirimiphos
    • BLEX
    • Pyridimine phosphate
    • Aktellik
    • Sybol 2
    • Aktelik
    • Plant protection PP511
    • Fosforan pirimidyny
    • OMS 1424
    • DTXSID0024266
    • PP511
    • 2VQZ4PK548
    • 2-Diethylamino-6-methylpyrimidin-4-yl dimethyl phosphorothionate
    • R 33986
    • DTXCID004266
    • CHEBI:38843
    • O-(2-(Diethylamino)-6-methyl-4-pyrimidinyl)-O,O-dimethyl phosphorothioate
    • O-(2-(diethylamino)-6-methylpyrimidin-4-yl) O,O-dimethyl phosphorothioate
    • O-[2-(diethylamino)-6-methylpyrimidin-4-yl] O,O-dimethyl phosphorothioate
    • RefChem:174541
    • O-2-(DIETHYLAMINO)-6-METHYLPYRIMIDIN-4-YL O,O-DIMETHYL PHOSPHOROTHIOATE
    • O-(2-(diethylamino)-6-methyl-4-pyrimidinyl) O,O-dimethylphosphorothioate lic
    • 249-528-5
    • Actellic
    • Pyrimiphos-methyl
    • 4-dimethoxyphosphinothioyloxy-N,N-diethyl-6-methylpyrimidin-2-amine
    • ENT 27699GC
    • PP 511
    • O-(2-Diethylamino-6-methylpyrimidin-4-yl) O,O-dimethyl phosphorothioate
    • Aktel
    • Pirimiphos-methyl, 90%
    • O-[2-(diethylamino)-6-methylpyrimidin-4-yl] O,O-dimethyl thiophosphate
    • Phosphorothioic acid, O-[2-(diethylamino)-6-methyl-4-pyrimidinyl] O,O-dimethyl ester
    • Caswell No. 334B
    • Piritione
    • Primiphos-methyl
    • 4-dimethoxyphosphinothioyloxy-N,N-diethyl-6-methyl-pyrimidin-2-amine
    • Phosphorothioic acid, O-(2-(diethylamino)-6-methyl-4-pyrimidinyl) O,O-dimethyl ester
    • Fosforan pirimidyny [Polish]
    • Pyrimiphos-methyl [ISO-French]
    • HSDB 6984
    • Pirimiphos-methyl [ANSI:BSI:ISO]
    • Pirimiphos-methyl [ISO]
    • EINECS 249-528-5
    • EPA Pesticide Chemical Code 108102
    • BRN 0755726
    • UNII-2VQZ4PK548
    • Methylpyrimiphos
    • AI3-27699
    • C11H20N3O3PS
    • Pirimiphos Me
    • Pirimiphos-methyl 10 microg/mL in Cyclohexane
    • Pirimiphos-methyl 1000 microg/mL in Acetone
    • O,O-Dimethyl O-(2-(diethylamino)-6-methyl-4-pyrimidinyl) phosphorothioate
    • Plant Protection PP 511
    • Pirimiphos-methyl 100 microg/mL in Cyclohexane
    • Pirimiphos-methyl (Standard)
    • SCHEMBL26456
    • BIDD:ER0441
    • PIRIMIPHOS-METHYL [MI]
    • orb1306624
    • CHEMBL1886047
    • PIRIMIPHOS-METHYL [HSDB]
    • SCHEMBL29358873
    • HY-B1881R
    • HY-B1881
    • MSK20184
    • Tox21_300718
    • AKOS015892468
    • O-(2-(Diethylamino)-6-methyl-4-pyrimidinyl) O,O-dimethylphosphorothioate
    • FP37336
    • NCGC00163924-01
    • NCGC00163924-02
    • NCGC00163924-03
    • NCGC00163924-04
    • NCGC00254624-01
    • DA-66747
    • CAS-29232-93-7
    • CS-0013946
    • NS00010883
    • C18403
    • F82070
    • 232P937
    • A819833
    • Q415867
    • Pirimiphos-methyl, PESTANAL(R), analytical standard
    • 4-dimethoxyphosphinothioyloxy-N,N-diethyl-6-methyl-2-pyrimidinamine
    • O-(2-(Diethylamino)-6-methyl-4-pyrimidinyl)O,O-dimethyl phosphorothioate
    • o-[2-(Diethylamino)-6-methyl-4-pyrimidinyl] o,o-dimethyl thiophosphate
    • o-2-diethylamino-6-methylpyrimidin-4-yl o,o-dimethyl phosphorothioate
    • O-(2-(DIETHYLAMINO)-6-METHYL-4-PYRIMIDINYL) O,O-DIMETHYL PHOSPHOROTHIOATE
    • Phosphorothioic acid, O-[2-(diethylamino)-6-methyl-4-pyrimidinyl]O,O-dimethyl ester
    • 29232-93-7

  • Applications

    Pirimiphos-methyl is used as the active ingredient in pesticide formulations such as emulsifiable concentrates and granules for real-world applications including protecting stored products and grain from pests in warehouses, silos, and milling facilities; safeguarding food-processing facilities and cold-storage rooms from storage pests; providing structural pest control in industrial or commercial buildings through surface or residual treatments; and supporting public health vector-control programs via indoor residual spraying or space spraying against mosquitoes in malaria-control campaigns. CAS number 29232-93-7.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 29.61
    methanol 43.85
    isopropanol 16.17
    water 4.07
    ethyl acetate 35.49
    n-propanol 22.87
    acetone 49.4
    n-butanol 20.56
    acetonitrile 36.25
    DMF 210.41
    toluene 9.07
    isobutanol 16.78
    1,4-dioxane 41.41
    methyl acetate 51.54
    THF 81.89
    2-butanone 42.64
    n-pentanol 17.52
    sec-butanol 19.42
    n-hexane 0.38
    ethylene glycol 28.91
    NMP 386.18
    cyclohexane 1.33
    DMSO 256.54
    n-butyl acetate 31.74
    n-octanol 6.8
    chloroform 250.4
    n-propyl acetate 28.83
    acetic acid 245.34
    dichloromethane 245.61
    cyclohexanone 103.35
    propylene glycol 36.79
    isopropyl acetate 21.07
    DMAc 266.44
    2-ethoxyethanol 61.79
    isopentanol 17.25
    n-heptane 0.56
    ethyl formate 64.0
    1,2-dichloroethane 105.32
    n-hexanol 15.35
    2-methoxyethanol 99.16
    isobutyl acetate 18.08
    tetrachloromethane 22.88
    n-pentyl acetate 26.39
    transcutol 72.97
    n-heptanol 11.24
    ethylbenzene 4.59
    MIBK 17.22
    2-propoxyethanol 58.54
    tert-butanol 19.32
    MTBE 9.27
    2-butoxyethanol 41.36
    propionic acid 84.43
    o-xylene 9.78
    formic acid 199.68
    diethyl ether 8.24
    m-xylene 7.62
    p-xylene 8.47
    chlorobenzene 44.2
    dimethyl carbonate 43.15
    n-octane 0.27
    formamide 209.65
    cyclopentanone 139.54
    2-pentanone 27.5
    anisole 17.22
    cyclopentyl methyl ether 27.06
    gamma-butyrolactone 217.38
    1-methoxy-2-propanol 57.74
    pyridine 73.17
    3-pentanone 25.05
    furfural 258.94
    n-dodecane 0.28
    diethylene glycol 71.46
    diisopropyl ether 2.88
    tert-amyl alcohol 23.64
    acetylacetone 56.59
    n-hexadecane 0.34
    acetophenone 42.55
    methyl propionate 45.88
    isopentyl acetate 28.28
    trichloroethylene 327.34
    n-nonanol 7.23
    cyclohexanol 26.56
    benzyl alcohol 41.24
    2-ethylhexanol 10.69
    isooctanol 9.84
    dipropyl ether 6.74
    1,2-dichlorobenzene 56.41
    ethyl lactate 37.75
    propylene carbonate 135.28
    n-methylformamide 113.21
    2-pentanol 10.69
    n-pentane 0.55
    1-propoxy-2-propanol 38.94
    1-methoxy-2-propyl acetate 43.85
    2-(2-methoxypropoxy) propanol 44.65
    mesitylene 4.73
    ε-caprolactone 112.67
    p-cymene 6.78
    epichlorohydrin 183.74
    1,1,1-trichloroethane 79.0
    2-aminoethanol 41.27
    morpholine-4-carbaldehyde 197.03
    sulfolane 322.83
    2,2,4-trimethylpentane 0.69
    2-methyltetrahydrofuran 50.86
    n-hexyl acetate 23.43
    isooctane 0.33
    2-(2-butoxyethoxy)ethanol 45.41
    sec-butyl acetate 16.33
    tert-butyl acetate 22.11
    decalin 0.87
    glycerin 88.4
    diglyme 80.03
    acrylic acid 130.15
    isopropyl myristate 8.84
    n-butyric acid 81.32
    acetyl acetate 47.06
    di(2-ethylhexyl) phthalate 26.05
    ethyl propionate 23.28
    nitromethane 313.15
    1,2-diethoxyethane 17.49
    benzonitrile 52.74
    trioctyl phosphate 15.52
    1-bromopropane 21.58
    gamma-valerolactone 221.73
    n-decanol 5.48
    triethyl phosphate 27.91
    4-methyl-2-pentanol 6.94
    propionitrile 26.61
    vinylene carbonate 161.56
    1,1,2-trichlorotrifluoroethane 278.22
    DMS 41.34
    cumene 4.26
    2-octanol 6.31
    2-hexanone 22.64
    octyl acetate 14.7
    limonene 8.43
    1,2-dimethoxyethane 55.61
    ethyl orthosilicate 22.1
    tributyl phosphate 19.82
    diacetone alcohol 41.58
    N,N-dimethylaniline 16.88
    acrylonitrile 56.67
    aniline 33.74
    1,3-propanediol 50.21
    bromobenzene 38.47
    dibromomethane 107.77
    1,1,2,2-tetrachloroethane 241.41
    2-methyl-cyclohexyl acetate 30.87
    tetrabutyl urea 25.55
    diisobutyl methanol 5.87
    2-phenylethanol 37.34
    styrene 6.32
    dioctyl adipate 23.91
    dimethyl sulfate 117.36
    ethyl butyrate 25.18
    methyl lactate 61.23
    butyl lactate 37.6
    diethyl carbonate 27.86
    propanediol butyl ether 38.74
    triethyl orthoformate 23.52
    p-tert-butyltoluene 6.21
    methyl 4-tert-butylbenzoate 42.4
    morpholine 63.95
    tert-butylamine 7.29
    n-dodecanol 4.1
    dimethoxymethane 52.93
    ethylene carbonate 108.08
    cyrene 93.72
    2-ethoxyethyl acetate 43.69
    2-ethylhexyl acetate 24.72
    1,2,4-trichlorobenzene 89.58
    4-methylpyridine 64.42
    dibutyl ether 4.18
    2,6-dimethyl-4-heptanol 5.87
    DEF 63.71
    dimethyl isosorbide 80.82
    tetrachloroethylene 134.94
    eugenol 49.3
    triacetin 46.47
    span 80 40.89
    1,4-butanediol 28.11
    1,1-dichloroethane 67.41
    2-methyl-1-pentanol 17.68
    methyl formate 109.7
    2-methyl-1-butanol 18.98
    n-decane 0.4
    butyronitrile 24.23
    3,7-dimethyl-1-octanol 7.78
    1-chlorooctane 3.13
    1-chlorotetradecane 1.49
    n-nonane 0.31
    undecane 0.33
    tert-butylcyclohexane 0.65
    cyclooctane 0.44
    cyclopentanol 40.54
    tetrahydropyran 26.44
    tert-amyl methyl ether 11.38
    2,5,8-trioxanonane 61.37
    1-hexene 1.84
    2-isopropoxyethanol 36.86
    2,2,2-trifluoroethanol 161.43
    methyl butyrate 37.01

    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