Fluroxypyr

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  • Identifiers

    CAS number
    69377-81-7

    Molecular formula
    C7H5Cl2FN2O3

    SMILES
    C(C(=O)O)OC1=NC(=C(C(=C1Cl)N)Cl)F

    Safety labels

  • Odor profile

    Fragrance
    Odorless 74.85%
    Savory 20.23%
    Milky 19.21%
    Animal 15.86%
    Bitter 15.71%
    Burnt 15.6%
    Fatty 15.59%
    Cooked 15.56%
    Meaty 15.24%
    Dairy 15.12%

     

    Flavor
    Odorless 60.09%
    Bitter 52.96%
    Mild 36.59%
    Bland 30.75%
    Very mild 25.62%
    Sweet-like 22.87%
    Yeast 20.25%
    Bread crust 19.77%
    Scallion 19.58%
    Orange flower 19.51%

     

    Odor impact est.
    Odorless

  • Properties

    XLogP3-AA
    1.8

    pKa est.
    5.61 (weak acid)

    Molecular weight
    255.03 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very slow

    Boiling point est.
    330°C

    Melting point expt.

    • 232 °C
    • Stable in acidic media. Fluroxypyr is acidic, and reacts with alkalis to form salts. DT50 /half-life/ in water 185 days (pH 9, 20 °C). Stable at temperatures up to melting point. Stable in visible light.

    Flash point

    • 203.65 ˚C est.

    Solubility expt.

    • Water solubility = 0.091 g/L at 20 °C
    • In acetone 51.0, methanol 34.6, ethyl acetate 10.6, isopropanol 9.2, dichloromethane 0.1, toluene 0.8, xylene 0.3 (all in g/L, 20 °C)
    • In water at 20 °C, 5700 mg/L (pH 5.0), 7300 mg/L (pH 9.2)

  • Synonyms

    • Fluroxypyr
    • 69377-81-7
    • Advance
    • 4-Amino-3,5-dichloro-6-fluoro-2-pyridyloxyacetic acid
    • 2-((4-Amino-3,5-dichloro-6-fluoropyridin-2-yl)oxy)acetic acid
    • EF 689
    • FF4014
    • ACETIC ACID, ((4-AMINO-3,5-DICHLORO-6-FLUORO-2-PYRIDINYL)OXY)-
    • TRASTAN
    • ((4-Amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy)acetic acid
    • [(4-amino-3,5-dichloro-6-fluoropyridin-2-yl)oxy]acetic acid
    • BARCLAY HURLER
    • DTXSID2034627
    • 8O40SHO197
    • 4,5-Amino-3,5-dichloro-6-fluoro-2-pyridinyloxyacetic acid
    • DTXCID0014627
    • CHEBI:82017
    • Acetic acid, [(4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy]-
    • 2-[(4-amino-3,5-dichloro-6-fluoropyridin-2-yl)oxy]acetic acid
    • ((4-Amino-3,5-dichloro-6-fluoropyridin-2-yl)oxy)acetic acid
    • RefChem:141049
    • Acetic acid, 2-((4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy)-
    • Starane
    • MFCD01311822
    • 2-(4-amino-3,5-dichloro-6-fluoropyridin-2-yl)oxyacetic acid
    • Shuangzhiling; Starane Advanced;EF 689
    • 2-[(4-Amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy]acetic Acid
    • Dauko 433
    • Fluroxypyr [BSI:ISO]
    • HSDB 6655
    • Fluroxypyr acid
    • UNII-8O40SHO197
    • EINECS Annex I Index 607-255-00-2
    • 2-((4-AMINO-3,5-DICHLORO-6-FLUORO-2-PYRIDINYL)OXY)ACETIC ACID
    • EF-689
    • fluroxypyr-meptyl TP3
    • FLUROXYPYR [MI]
    • Fluroxypyr 100 microg/mL in Acetonitrile
    • FLUROXYPYR [ISO]
    • FLUROXYPYR [HSDB]
    • SCHEMBL23545
    • orb1705825
    • orb3025525
    • CHEMBL1895005
    • SCHEMBL29396793
    • HY-B1842
    • MSK22204
    • Tox21_301096
    • AKOS015916307
    • Fluroxypyr 1000 microg/mL in Acetone
    • NCGC00163805-01
    • NCGC00163805-02
    • NCGC00163805-03
    • NCGC00254996-01
    • CAS-69377-81-7
    • DB-055264
    • CS-0013911
    • NS00001734
    • Fluroxypyr, PESTANAL(R), analytical standard
    • C18858
    • 377F817
    • Q13416874
    • 69377-81-7

  • Applications

    Fluroxypyr (CAS 69377-81-7) is used primarily in agriculture as a selective, systemic herbicide for post-emergence control of broadleaf weeds in cereals and certain other crops. It is commonly deployed as the active ingredient in crop-protection formulations (for example emulsifiable concentrates and suspension concentrates) and is often included in tank mixes with other herbicides to broaden the weed-control spectrum and support resistance management. In practical weed-management programs, it enables targeted control of troublesome species within crop systems and may be evaluated for use in turf or managed landscapes where permitted by label. Its use is subject to local regulations and product-label restrictions, which guide application timing, rates, and crop-rotation considerations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 95.4
    methanol 129.42
    isopropanol 41.55
    water 2.54
    ethyl acetate 25.74
    n-propanol 46.81
    acetone 89.22
    n-butanol 37.36
    acetonitrile 21.89
    DMF 245.0
    toluene 1.54
    isobutanol 20.24
    1,4-dioxane 14.9
    methyl acetate 27.0
    THF 128.7
    2-butanone 62.83
    n-pentanol 21.58
    sec-butanol 32.09
    n-hexane 0.8
    ethylene glycol 32.32
    NMP 238.81
    cyclohexane 0.49
    DMSO 631.81
    n-butyl acetate 20.98
    n-octanol 5.11
    chloroform 3.62
    n-propyl acetate 18.8
    acetic acid 43.0
    dichloromethane 7.18
    cyclohexanone 34.42
    propylene glycol 29.65
    isopropyl acetate 14.88
    DMAc 236.54
    2-ethoxyethanol 88.42
    isopentanol 22.49
    n-heptane 1.42
    ethyl formate 37.71
    1,2-dichloroethane 8.89
    n-hexanol 17.23
    2-methoxyethanol 186.72
    isobutyl acetate 4.36
    tetrachloromethane 1.07
    n-pentyl acetate 9.0
    transcutol 55.76
    n-heptanol 7.74
    ethylbenzene 1.51
    MIBK 17.92
    2-propoxyethanol 70.83
    tert-butanol 34.57
    MTBE 14.03
    2-butoxyethanol 26.49
    propionic acid 23.0
    o-xylene 2.01
    formic acid 77.07
    diethyl ether 19.98
    m-xylene 1.58
    p-xylene 1.52
    chlorobenzene 1.04
    dimethyl carbonate 18.98
    n-octane 0.42
    formamide 147.75
    cyclopentanone 77.8
    2-pentanone 48.57
    anisole 9.02
    cyclopentyl methyl ether 22.15
    gamma-butyrolactone 78.53
    1-methoxy-2-propanol 106.77
    pyridine 14.87
    3-pentanone 28.0
    furfural 64.43
    n-dodecane 0.22
    diethylene glycol 70.72
    diisopropyl ether 3.47
    tert-amyl alcohol 30.79
    acetylacetone 42.67
    n-hexadecane 0.24
    acetophenone 15.33
    methyl propionate 31.44
    isopentyl acetate 12.28
    trichloroethylene 9.24
    n-nonanol 4.89
    cyclohexanol 11.55
    benzyl alcohol 10.88
    2-ethylhexanol 8.35
    isooctanol 4.92
    dipropyl ether 14.23
    1,2-dichlorobenzene 1.28
    ethyl lactate 22.76
    propylene carbonate 30.54
    n-methylformamide 143.13
    2-pentanol 19.7
    n-pentane 1.23
    1-propoxy-2-propanol 43.55
    1-methoxy-2-propyl acetate 29.76
    2-(2-methoxypropoxy) propanol 27.08
    mesitylene 1.14
    ε-caprolactone 33.36
    p-cymene 2.77
    epichlorohydrin 56.4
    1,1,1-trichloroethane 3.03
    2-aminoethanol 51.69
    morpholine-4-carbaldehyde 94.71
    sulfolane 164.02
    2,2,4-trimethylpentane 0.46
    2-methyltetrahydrofuran 41.04
    n-hexyl acetate 8.67
    isooctane 0.27
    2-(2-butoxyethoxy)ethanol 29.8
    sec-butyl acetate 8.58
    tert-butyl acetate 17.02
    decalin 0.29
    glycerin 48.9
    diglyme 55.53
    acrylic acid 21.27
    isopropyl myristate 3.62
    n-butyric acid 32.29
    acetyl acetate 10.47
    di(2-ethylhexyl) phthalate 4.85
    ethyl propionate 19.18
    nitromethane 104.48
    1,2-diethoxyethane 15.69
    benzonitrile 5.6
    trioctyl phosphate 4.29
    1-bromopropane 6.03
    gamma-valerolactone 89.53
    n-decanol 3.72
    triethyl phosphate 9.57
    4-methyl-2-pentanol 8.02
    propionitrile 16.47
    vinylene carbonate 17.38
    1,1,2-trichlorotrifluoroethane 52.42
    DMS 8.67
    cumene 1.28
    2-octanol 4.52
    2-hexanone 26.34
    octyl acetate 5.39
    limonene 4.35
    1,2-dimethoxyethane 102.62
    ethyl orthosilicate 7.42
    tributyl phosphate 5.66
    diacetone alcohol 49.05
    N,N-dimethylaniline 9.7
    acrylonitrile 21.75
    aniline 6.05
    1,3-propanediol 69.3
    bromobenzene 0.72
    dibromomethane 4.88
    1,1,2,2-tetrachloroethane 8.86
    2-methyl-cyclohexyl acetate 10.02
    tetrabutyl urea 12.2
    diisobutyl methanol 4.91
    2-phenylethanol 11.77
    styrene 1.44
    dioctyl adipate 6.55
    dimethyl sulfate 52.43
    ethyl butyrate 19.33
    methyl lactate 41.05
    butyl lactate 15.31
    diethyl carbonate 11.23
    propanediol butyl ether 21.36
    triethyl orthoformate 11.54
    p-tert-butyltoluene 2.68
    methyl 4-tert-butylbenzoate 14.92
    morpholine 42.01
    tert-butylamine 12.65
    n-dodecanol 2.62
    dimethoxymethane 107.58
    ethylene carbonate 14.49
    cyrene 40.93
    2-ethoxyethyl acetate 13.95
    2-ethylhexyl acetate 8.5
    1,2,4-trichlorobenzene 2.15
    4-methylpyridine 14.06
    dibutyl ether 4.98
    2,6-dimethyl-4-heptanol 4.91
    DEF 72.03
    dimethyl isosorbide 53.79
    tetrachloroethylene 5.9
    eugenol 17.28
    triacetin 9.61
    span 80 14.15
    1,4-butanediol 24.62
    1,1-dichloroethane 4.7
    2-methyl-1-pentanol 13.62
    methyl formate 85.33
    2-methyl-1-butanol 21.9
    n-decane 0.39
    butyronitrile 19.01
    3,7-dimethyl-1-octanol 4.46
    1-chlorooctane 1.42
    1-chlorotetradecane 0.54
    n-nonane 0.39
    undecane 0.29
    tert-butylcyclohexane 0.3
    cyclooctane 0.28
    cyclopentanol 23.7
    tetrahydropyran 14.42
    tert-amyl methyl ether 16.11
    2,5,8-trioxanonane 39.13
    1-hexene 3.17
    2-isopropoxyethanol 34.08
    2,2,2-trifluoroethanol 24.91
    methyl butyrate 31.56

    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