2-Butoxyethyl 2,4-dichlorophenoxyacetate

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  • Identifiers

    CAS number
    1929-73-3

    Molecular formula
    C14H18Cl2O4

    SMILES
    CCCCOCCOC(=O)COC1=C(C=C(C=C1)Cl)Cl

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Fruity 42.03%
    Sweet 35.68%
    Vanilla 34.03%
    Floral 29.83%
    Creamy 27.29%
    Odorless 27.21%
    Milky 24.76%
    Musk 23.48%
    Powdery 22.82%
    Grape 21.76%

     

    Flavor
    Fruity 44.61%
    Sweet 39.96%
    Bitter 38.24%
    Mild 31.8%
    Floral 28.66%
    Odorless 27.85%
    Creamy 25.46%
    Grape 25.31%
    Powdery 22.28%
    Bland 22.05%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    4.2

    pKa est.
    5.74 (weak acid)

    Molecular weight
    321.2 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • Liquid at room temperature

    Boiling point

    • 156-162 °C @ 1-1.5 mm Hg

    Flash point

    • 154.62 ˚C est.
    • Greater than 175 °F (open cup) /2,4-D esters/

    Solubility expt.

    • ESTER FORMULATIONS HAVE LOW SOLUBILITY IN WATER. /2,4-D; SRP: THEY CAN BE DISPERSED AS AQUEOUS EMULSIONS/
    • Sol in organic solvents @ 20 °C; miscible in acetone, acetonitrile, n-hexane, and methanol.
    • In water: 12 mg/l, @ 25 °C
    • Soluble in oils /2,4-D esters/

  • Synonyms

    • 1929-73-3
    • 2,4-D-butotyl
    • Brush killer 64
    • 2-Butoxyethyl 2,4-dichlorophenoxyacetate
    • Weedone LV 4
    • Bladex-B
    • 2,4-D butoxyethyl ester
    • 2,4-D butoxyethanol ester
    • 2,4-D 2-Butoxyethyl ester
    • Butoxyethyl (2,4-dichlorophenoxy)acetate
    • 2,4-D-butotyl [ISO]
    • 2,4-D-Bee
    • 2,4-DBEE
    • 2-butoxyethyl 2-(2,4-dichlorophenoxy)acetate
    • 2-Butoxyethyl-2-(2,4-dichlorophenoxy)acetate
    • Acetic acid, (2,4-dichlorophenoxy)-, 2-butoxyethyl ester
    • 2,4-D-butylglycol ester
    • (2,4-Dichlorophenoxy)acetic acid butoxyethyl ester
    • 2,4-Dichlorophenoxyacetic acid butoxyethanol ester
    • Y4OL636NHU
    • DTXSID1032309
    • Acetic acid, (2,4-dichlorophenoxy)-, butoxyethyl ester
    • Lo-Estasol
    • 2,4-Dichlorophenoxyacetic acid Butoxyethyl Ester
    • Weedone LV-6
    • (2,4-Dichlorophenoxy)acetic acid butoxyethanol ester
    • Butoxy-D 3
    • Weed-Rhap LV-4D
    • Weedone 638
    • 2,4-D butoxyethanol
    • Caswell No. 315AI
    • 2,4-D-(2-Butoxyethyl)
    • HSDB 6307
    • EINECS 217-680-1
    • Butoxyethyl 2,4-dichlorophenoxyacetate
    • UNII-Y4OL636NHU
    • EPA Pesticide Chemical Code 030053
    • BRN 1996617
    • Butoxyethanol ester of 2,4-dichlorophenoxyacetic acid
    • CCRIS 8562
    • 2,4-Dichlorophenoxyacetic acid 2-Butoxyethyl ester
    • Butoxyethanol ester of (2,4-dichlorophenoxy)acetic acid
    • BLADEX B
    • 2,4-Dichlorophenoxyacetic acid ethylene glycol butyl ether ester
    • DESORMONE LOURD D
    • DESORMONE 600
    • 4-06-00-00911 (Beilstein Handbook Reference)
    • Butoxyethanol ester of 2,4-D
    • SCHEMBL2464242
    • CHEMBL3186113
    • DTXCID9012309
    • 2,4-D-BUTOTYL [HSDB]
    • 2,4-D, BUTOXYETHYL ESTER
    • Tox21_301559
    • AKOS015913890
    • NCGC00255339-01
    • CAS-1929-73-3
    • NS00009740
    • 2,4-dichloro-phenoxyacetic acid butoxyethyl ester
    • (2,4-Dichlorophenoxy)acetic acid 2-butoxyethyl ester
    • Q22329266
    • 2,4-D butylglycol ester, PESTANAL(R), analytical standard
    • ACETIC ACID, 2-(2,4-DICHLOROPHENOXY)-, 2-BUTOXYETHYL ESTER

  • Applications

    Chemical name: 2-Butoxyethyl 2,4-dichlorophenoxyacetate; CAS number: 1929-73-3 is used in agriculture as an ester of 2,4-D, functioning as an herbicidal active ingredient. It also serves as a formulation component in pesticide products such as emulsifiable concentrates. In industrial manufacturing, it acts as an intermediate for the synthesis of 2,4-D–based herbicides and related agrochemical derivatives. It can function as a solvent or carrier in pesticide formulations to adjust solubility and handling properties. Additionally, it may be employed as a starting material or precursor in agrochemical research and development for new derivatives. Applications are subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 235.71
    methanol 280.64
    isopropanol 118.81
    water 0.27
    ethyl acetate 743.21
    n-propanol 178.36
    acetone 1020.79
    n-butanol 145.91
    acetonitrile 537.55
    DMF 674.45
    toluene 158.08
    isobutanol 112.74
    1,4-dioxane 664.39
    methyl acetate 635.49
    THF 1087.32
    2-butanone 575.61
    n-pentanol 142.94
    sec-butanol 141.32
    n-hexane 5.3
    ethylene glycol 52.06
    NMP 638.65
    cyclohexane 28.15
    DMSO 1468.41
    n-butyl acetate 333.25
    n-octanol 53.27
    chloroform 1740.52
    n-propyl acetate 390.31
    acetic acid 765.83
    dichloromethane 2511.92
    cyclohexanone 789.38
    propylene glycol 63.0
    isopropyl acetate 289.06
    DMAc 1023.86
    2-ethoxyethanol 480.41
    isopentanol 128.41
    n-heptane 9.99
    ethyl formate 335.59
    1,2-dichloroethane 1415.51
    n-hexanol 93.8
    2-methoxyethanol 568.58
    isobutyl acetate 184.65
    tetrachloromethane 124.28
    n-pentyl acetate 190.44
    transcutol 1425.66
    n-heptanol 53.49
    ethylbenzene 82.87
    MIBK 200.32
    2-propoxyethanol 275.63
    tert-butanol 172.49
    MTBE 208.52
    2-butoxyethanol 172.5
    propionic acid 258.49
    o-xylene 105.01
    formic acid 228.63
    diethyl ether 262.9
    m-xylene 86.97
    p-xylene 123.14
    chlorobenzene 323.51
    dimethyl carbonate 250.07
    n-octane 4.96
    formamide 531.07
    cyclopentanone 825.06
    2-pentanone 416.79
    anisole 283.87
    cyclopentyl methyl ether 378.94
    gamma-butyrolactone 967.21
    1-methoxy-2-propanol 327.25
    pyridine 703.59
    3-pentanone 356.53
    furfural 891.39
    n-dodecane 4.55
    diethylene glycol 259.17
    diisopropyl ether 57.19
    tert-amyl alcohol 175.73
    acetylacetone 742.12
    n-hexadecane 5.41
    acetophenone 341.69
    methyl propionate 480.43
    isopentyl acetate 256.47
    trichloroethylene 2575.91
    n-nonanol 52.91
    cyclohexanol 238.61
    benzyl alcohol 247.94
    2-ethylhexanol 75.32
    isooctanol 49.91
    dipropyl ether 127.19
    1,2-dichlorobenzene 317.23
    ethyl lactate 162.29
    propylene carbonate 493.68
    n-methylformamide 382.89
    2-pentanol 89.66
    n-pentane 5.31
    1-propoxy-2-propanol 196.71
    1-methoxy-2-propyl acetate 331.99
    2-(2-methoxypropoxy) propanol 245.05
    mesitylene 53.55
    ε-caprolactone 603.77
    p-cymene 62.4
    epichlorohydrin 1407.64
    1,1,1-trichloroethane 812.27
    2-aminoethanol 112.6
    morpholine-4-carbaldehyde 782.49
    sulfolane 1011.08
    2,2,4-trimethylpentane 7.73
    2-methyltetrahydrofuran 594.67
    n-hexyl acetate 188.12
    isooctane 3.93
    2-(2-butoxyethoxy)ethanol 306.69
    sec-butyl acetate 218.79
    tert-butyl acetate 288.55
    decalin 14.02
    glycerin 118.97
    diglyme 793.95
    acrylic acid 275.33
    isopropyl myristate 74.91
    n-butyric acid 388.32
    acetyl acetate 536.15
    di(2-ethylhexyl) phthalate 88.28
    ethyl propionate 299.97
    nitromethane 1712.49
    1,2-diethoxyethane 451.92
    benzonitrile 308.54
    trioctyl phosphate 56.15
    1-bromopropane 392.36
    gamma-valerolactone 974.89
    n-decanol 38.73
    triethyl phosphate 155.78
    4-methyl-2-pentanol 54.64
    propionitrile 259.37
    vinylene carbonate 463.28
    1,1,2-trichlorotrifluoroethane 927.44
    DMS 293.0
    cumene 53.12
    2-octanol 39.8
    2-hexanone 313.9
    octyl acetate 95.56
    limonene 97.16
    1,2-dimethoxyethane 767.14
    ethyl orthosilicate 138.62
    tributyl phosphate 87.75
    diacetone alcohol 299.47
    N,N-dimethylaniline 174.84
    acrylonitrile 414.5
    aniline 250.98
    1,3-propanediol 186.0
    bromobenzene 367.93
    dibromomethane 1217.98
    1,1,2,2-tetrachloroethane 1611.47
    2-methyl-cyclohexyl acetate 194.83
    tetrabutyl urea 114.23
    diisobutyl methanol 50.36
    2-phenylethanol 168.0
    styrene 135.18
    dioctyl adipate 159.86
    dimethyl sulfate 452.0
    ethyl butyrate 288.71
    methyl lactate 196.21
    butyl lactate 147.79
    diethyl carbonate 226.23
    propanediol butyl ether 154.59
    triethyl orthoformate 196.21
    p-tert-butyltoluene 57.18
    methyl 4-tert-butylbenzoate 216.88
    morpholine 771.95
    tert-butylamine 82.39
    n-dodecanol 30.84
    dimethoxymethane 585.27
    ethylene carbonate 384.43
    cyrene 277.2
    2-ethoxyethyl acetate 346.79
    2-ethylhexyl acetate 201.82
    1,2,4-trichlorobenzene 427.11
    4-methylpyridine 561.7
    dibutyl ether 112.82
    2,6-dimethyl-4-heptanol 50.36
    DEF 532.18
    dimethyl isosorbide 428.05
    tetrachloroethylene 932.65
    eugenol 198.09
    triacetin 326.33
    span 80 169.8
    1,4-butanediol 101.75
    1,1-dichloroethane 861.43
    2-methyl-1-pentanol 135.75
    methyl formate 342.63
    2-methyl-1-butanol 132.88
    n-decane 7.41
    butyronitrile 231.79
    3,7-dimethyl-1-octanol 64.06
    1-chlorooctane 49.6
    1-chlorotetradecane 19.34
    n-nonane 6.71
    undecane 5.53
    tert-butylcyclohexane 10.31
    cyclooctane 7.4
    cyclopentanol 236.86
    tetrahydropyran 577.69
    tert-amyl methyl ether 181.29
    2,5,8-trioxanonane 518.94
    1-hexene 43.42
    2-isopropoxyethanol 268.13
    2,2,2-trifluoroethanol 302.12
    methyl butyrate 438.31

    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