Pyriproxyfen

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  • Identifiers

    CAS number
    95737-68-1

    Molecular formula
    C20H19NO3

    SMILES
    CC(COC1=CC=C(C=C1)OC2=CC=CC=C2)OC3=CC=CC=N3

    Safety labels

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Floral 68.08%
    Sweet 43.09%
    Fruity 36.88%
    Green 34.97%
    Rose 34.83%
    Balsamic 31.89%
    Animal 30.35%
    Aromatic 29.26%
    Metallic 29.03%
    Powdery 26.54%

     

    Flavor
    Bitter 62.94%
    Sweet 39.84%
    Floral 34.72%
    Green 31.96%
    Fruity 29.0%
    Balsam 27.3%
    Musty 22.73%
    Rose 21.22%
    Powdery 21.0%
    Herbal 20.96%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    4.8

    pKa est.
    7.49 (neutral)

    Molecular weight
    321.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • 47 °C
    • MP: 49.7 °C
    • 48-50 °C

    Boiling point

    • 318 °C

    Flash point

    • 184.19 ˚C est.
    • 119 °C c.c.

    Solubility expt.

    • In hexane 400, methanol 200, xylene 500 (all g/kg at 20-25 °C)
    • Solubility in water, mg/l at 20 °C: 0.101 (practically insoluble)

  • Synonyms

    • Pyriproxyfen
    • 95737-68-1
    • Admiral
    • Nylar
    • 2-((1-(4-Phenoxyphenoxy)propan-2-yl)oxy)pyridine
    • 2-[1-Methyl-2-(4-phenoxyphenoxy)ethoxy]pyridine
    • juvinal
    • Distance
    • Sumilarv
    • Esteem
    • Nemesis
    • Knack
    • Lano Tape
    • Archer IGR
    • NyGuard IGR
    • Pluto MC
    • Distance IGR
    • Tiger 10EC
    • 4-Phenoxyphenyl (RS)-2-(2-pyridyloxy)propyl ether
    • S-31183
    • 2-{[1-(4-phenoxyphenoxy)propan-2-yl]oxy}pyridine
    • OMS 3019
    • CYCLIO
    • JUVENTOX
    • SEIZE
    • 3Q9VOR705O
    • 2-(1-Methyl-2-(4-phenoxyphenoxy)ethoxy)pyridine
    • DTXSID1032640
    • Pyridine, 2-(1-methyl-2-(4-phenoxyphenoxy)ethoxy)-
    • BCP 8702
    • BCP-8702
    • OMS-3019
    • S 9138
    • S31183
    • SK-591
    • S 31183
    • Pyridine, 2-[1-methyl-2-(4-phenoxyphenoxy)ethoxy]-
    • DTXCID9012640
    • CHEBI:39260
    • VECTRA 3D COMPONENT PYRIPROXYFEN
    • VECTRA FELIS COMPONENT PYRIPROXYFEN
    • S-9318
    • S-71639
    • (+--)-pyriproxyfen
    • RefChem:870967
    • GlyTouCan:G61271CE
    • pyriproxyfen, (+--)-
    • G61271CE
    • 429-800-1
    • SK 591
    • Pyriproxifen
    • 2-[1-(4-phenoxyphenoxy)propan-2-yloxy]pyridine
    • Pyriproxyfen [ISO:BSI]
    • Pyriproxyfen [ISO]
    • HSDB 7053
    • UNII-3Q9VOR705O
    • Pyriproxyfen (Standard)
    • PYRIPROXYFEN [MI]
    • PYRIPROXYFEN [JAN]
    • EC 429-800-1
    • Cyclio [veterinary] (TN)
    • SCHEMBL26721
    • PYRIPROXYFEN [MART.]
    • (+/-)-PYRIPROXYFEN
    • orb1307824
    • CHEMBL1883234
    • SCHEMBL29370858
    • HY-B2031R
    • PYRIPROXYFEN, (+/-)-
    • HY-B2031
    • MSK20314
    • Tox21_300716
    • EBC-12898
    • s5798
    • AKOS015841821
    • CS-5218
    • FP31951
    • KS-5363
    • NCGC00163945-01
    • NCGC00163945-02
    • NCGC00163945-03
    • NCGC00163945-04
    • NCGC00164462-01
    • NCGC00254622-01
    • PYRIPROXYFEN [EMA EPAR VETERINARY]
    • Pyriproxyfen 10 microg/mL in Cyclohexane
    • Pyriproxyfen 10 microg/mL in Acetonitrile
    • CAS-95737-68-1
    • Pyriproxyfen 100 microg/mL in Acetonitrile
    • NS00009439
    • P2612
    • C18605
    • D08455
    • EN300-7359616
    • Pyriproxifen, PESTANAL(R), analytical standard
    • 737P681
    • F448716
    • Q413089
    • 2-[ 1-methyl-2-(4-phenoxyphenoxy)ethoxy]pyridine
    • 2-[1 -methyl-2-(4-phenoxyphenoxy)ethoxy]pyridine
    • 2-[1-methyl- 2-(4-phenoxyphenoxy)ethoxy]pyridine
    • 2-[1-methyl-2-(4-phenoxyphenoxy)ethoxy] pyridine
    • 2-[1-Methyl-2-(4-phenoxyphenoxy)ethoxy]pyridine #
    • Pyriproxifen, certified reference material, TraceCERT(R)
    • Z3182789033
    • 2-(1-Methyl-2-(4-phenoxyphenoxy)ethoxy)pyridine;Pyroproxifen
    • 95737-68-1

  • Applications

    Pyriproxyfen (CAS 95737-68-1) is an insect growth regulator that acts as a juvenile hormone analog and is widely used in pest management. In agriculture, it is applied to field and greenhouse crops to suppress development of pests such as whiteflies, scale insects, and certain Lepidoptera, typically as a foliar spray or soil drench. In horticulture and ornamentals, it helps manage scale insects and mealybugs on ornamental plants. In veterinary and companion-animal care, pyriproxyfen is found in products for flea control on dogs and cats. In public health and vector control, it is used as a larvicide in water-containing habitats to reduce mosquito populations. It also appears in household and consumer pest-control formulations, used under local regulatory constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 151.72
    methanol 159.93
    isopropanol 84.15
    water 0.67
    ethyl acetate 687.59
    n-propanol 107.02
    acetone 400.18
    n-butanol 94.2
    acetonitrile 761.48
    DMF 109.85
    toluene 172.57
    isobutanol 66.82
    1,4-dioxane 559.21
    methyl acetate 475.75
    THF 1102.1
    2-butanone 362.64
    n-pentanol 99.44
    sec-butanol 102.63
    n-hexane 15.71
    ethylene glycol 28.73
    NMP 80.28
    cyclohexane 36.44
    DMSO 1161.54
    n-butyl acetate 204.96
    n-octanol 45.09
    chloroform 1737.94
    n-propyl acetate 260.47
    acetic acid 319.05
    dichloromethane 2909.38
    cyclohexanone 301.07
    propylene glycol 35.86
    isopropyl acetate 218.26
    DMAc 293.81
    2-ethoxyethanol 285.2
    isopentanol 72.66
    n-heptane 22.16
    ethyl formate 319.81
    1,2-dichloroethane 1349.14
    n-hexanol 65.76
    2-methoxyethanol 288.68
    isobutyl acetate 124.4
    tetrachloromethane 88.8
    n-pentyl acetate 99.35
    transcutol 660.85
    n-heptanol 37.34
    ethylbenzene 90.41
    MIBK 117.05
    2-propoxyethanol 170.69
    tert-butanol 85.49
    MTBE 138.86
    2-butoxyethanol 97.99
    propionic acid 177.84
    o-xylene 70.61
    formic acid 92.68
    diethyl ether 326.45
    m-xylene 65.5
    p-xylene 98.77
    chlorobenzene 275.09
    dimethyl carbonate 175.75
    n-octane 10.98
    formamide 233.04
    cyclopentanone 335.1
    2-pentanone 235.69
    anisole 191.64
    cyclopentyl methyl ether 259.42
    gamma-butyrolactone 550.16
    1-methoxy-2-propanol 169.13
    pyridine 549.79
    3-pentanone 241.58
    furfural 393.4
    n-dodecane 10.25
    diethylene glycol 124.32
    diisopropyl ether 53.05
    tert-amyl alcohol 95.82
    acetylacetone 373.65
    n-hexadecane 11.39
    acetophenone 171.67
    methyl propionate 346.89
    isopentyl acetate 148.85
    trichloroethylene 1764.77
    n-nonanol 45.91
    cyclohexanol 103.51
    benzyl alcohol 126.61
    2-ethylhexanol 56.53
    isooctanol 34.53
    dipropyl ether 165.19
    1,2-dichlorobenzene 219.12
    ethyl lactate 90.17
    propylene carbonate 271.88
    n-methylformamide 140.46
    2-pentanol 67.18
    n-pentane 11.41
    1-propoxy-2-propanol 115.86
    1-methoxy-2-propyl acetate 169.66
    2-(2-methoxypropoxy) propanol 126.92
    mesitylene 34.95
    ε-caprolactone 287.41
    p-cymene 44.76
    epichlorohydrin 1154.0
    1,1,1-trichloroethane 545.21
    2-aminoethanol 55.02
    morpholine-4-carbaldehyde 195.25
    sulfolane 419.84
    2,2,4-trimethylpentane 7.76
    2-methyltetrahydrofuran 440.71
    n-hexyl acetate 122.27
    isooctane 4.03
    2-(2-butoxyethoxy)ethanol 170.49
    sec-butyl acetate 146.81
    tert-butyl acetate 148.39
    decalin 16.96
    glycerin 59.5
    diglyme 417.85
    acrylic acid 150.23
    isopropyl myristate 61.0
    n-butyric acid 242.63
    acetyl acetate 373.67
    di(2-ethylhexyl) phthalate 55.21
    ethyl propionate 267.02
    nitromethane 765.51
    1,2-diethoxyethane 300.74
    benzonitrile 204.13
    trioctyl phosphate 35.89
    1-bromopropane 483.9
    gamma-valerolactone 366.11
    n-decanol 36.57
    triethyl phosphate 94.34
    4-methyl-2-pentanol 36.55
    propionitrile 343.49
    vinylene carbonate 273.65
    1,1,2-trichlorotrifluoroethane 348.36
    DMS 158.71
    cumene 47.61
    2-octanol 28.79
    2-hexanone 179.22
    octyl acetate 75.91
    limonene 56.71
    1,2-dimethoxyethane 508.86
    ethyl orthosilicate 84.95
    tributyl phosphate 56.53
    diacetone alcohol 120.69
    N,N-dimethylaniline 91.47
    acrylonitrile 403.94
    aniline 159.74
    1,3-propanediol 97.38
    bromobenzene 341.64
    dibromomethane 1568.37
    1,1,2,2-tetrachloroethane 1137.15
    2-methyl-cyclohexyl acetate 111.37
    tetrabutyl urea 68.51
    diisobutyl methanol 36.62
    2-phenylethanol 92.64
    styrene 129.38
    dioctyl adipate 107.03
    dimethyl sulfate 215.77
    ethyl butyrate 224.8
    methyl lactate 98.24
    butyl lactate 72.6
    diethyl carbonate 181.03
    propanediol butyl ether 74.33
    triethyl orthoformate 137.27
    p-tert-butyltoluene 35.04
    methyl 4-tert-butylbenzoate 110.28
    morpholine 474.04
    tert-butylamine 48.44
    n-dodecanol 31.56
    dimethoxymethane 323.06
    ethylene carbonate 254.68
    cyrene 110.08
    2-ethoxyethyl acetate 176.44
    2-ethylhexyl acetate 118.2
    1,2,4-trichlorobenzene 229.8
    4-methylpyridine 279.31
    dibutyl ether 131.41
    2,6-dimethyl-4-heptanol 36.62
    DEF 213.75
    dimethyl isosorbide 217.7
    tetrachloroethylene 603.51
    eugenol 100.76
    triacetin 169.96
    span 80 81.12
    1,4-butanediol 58.03
    1,1-dichloroethane 786.76
    2-methyl-1-pentanol 87.92
    methyl formate 170.99
    2-methyl-1-butanol 75.4
    n-decane 16.21
    butyronitrile 294.0
    3,7-dimethyl-1-octanol 46.24
    1-chlorooctane 56.08
    1-chlorotetradecane 25.55
    n-nonane 15.02
    undecane 12.48
    tert-butylcyclohexane 10.54
    cyclooctane 11.27
    cyclopentanol 111.5
    tetrahydropyran 478.2
    tert-amyl methyl ether 118.5
    2,5,8-trioxanonane 271.2
    1-hexene 72.05
    2-isopropoxyethanol 156.2
    2,2,2-trifluoroethanol 122.09
    methyl butyrate 291.73

    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