Phosphonous dichloride, ethyl-

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  • Identifiers

    CAS number
    1498-40-4

    Molecular formula
    C2H5Cl2P

    SMILES
    CCP(Cl)Cl

    Safety labels

    Flammable
    Flammable

    Corrosive
    Corrosive

  • Odor profile

    Fragrance
    Fishy 61.53%
    Odorless 37.34%
    Cheesy 37.1%
    Ripe 34.04%
    Sweet 24.86%
    Oily 19.72%
    Animal 19.61%
    Fresh 17.75%
    Cooling 17.59%
    Musty 17.33%

     

    Flavor
    Sulfurous 37.12%
    Meaty 31.56%
    Sulfury 30.39%
    Fishy 27.49%
    Onion 27.43%
    Odorless 25.78%
    Roasted 22.61%
    Ammoniacal 21.43%
    Bloody 20.54%
    Glue 20.41%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    1.9

    pKa est.
    9.53 (weak base)

    Molecular weight
    130.94 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    121°C

    Flash point

    • 17.37 ˚C est.

  • Synonyms

    • Ethyldichlorophosphine
    • Dichloroethylphosphine
    • 1498-40-4
    • dichloro(ethyl)phosphane
    • Ethyl phosphonous dichloride
    • Phosphine, dichloroethyl-
    • PHOSPHONOUS DICHLORIDE, ETHYL-
    • Dichlor-ethylfosfin
    • Dichlor-ethylfosfin [Czech]
    • EINECS 216-096-4
    • TL 373
    • BRN 0906709
    • DTXSID4075291
    • 4-04-00-03450 (Beilstein Handbook Reference)
    • ethylphosphonous dichloride
    • ETHYL PHOSPHONOUS DICHLORIDE, (ANHYDROUS)
    • ETHYL PHOSPHONOUS DICHLORIDE, [ANHYDROUS]
    • C2H5PCl2
    • Dichlorethylfosfin
    • MFCD00013617
    • dichloro-ethylphosphane
    • dichloroethyl-phosphine
    • ethyl dichlorophosphine
    • Phosphine, dichloroethyl
    • Dichloroethylphosphine, 95%
    • Phosphonous dichloride, ethyl
    • SCHEMBL340083
    • DTXCID6034847
    • ETHYLPHOSPHORUS DICHLORIDE
    • GEO-04496
    • AKOS015914299
    • DB-043016
    • NS00024899
    • ETHYL PHOSPHONOUS DICHLORIDE, ANHYDROUS
    • Ethyl phosphonous dichloride, anhydrous pyrophoric liquid
    • Ethyl phosphonous dichloride, anhydrous pyrophoric liquid [NA2845] [Poison]
    • 216-096-4

  • Applications

    Phosphonous dichloride, ethyl- (CAS 1498-40-4) is primarily used as a reactive intermediate in the synthesis of organophosphorus compounds. It serves as a building block for phosphonate ester compounds that act as polymer stabilizers and flame retardants in plastics and coatings; it is used to prepare phosphonyl chloride derivatives and related reagents for coatings and adhesives; it is employed in the synthesis of phosphorus-containing intermediates for pharmaceutical and agrochemical applications; in electronics-related materials it is involved in phosphonate chemistry for surface modification and bonding to metal oxides; and it is sometimes used to generate intermediates for polymerization inhibitors or crosslinking agents in polymer and resin formulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 145.05
    methanol 157.54
    isopropanol 136.34
    water 4.71
    ethyl acetate 135.94
    n-propanol 128.34
    acetone 355.67
    n-butanol 137.47
    acetonitrile 149.1
    DMF 561.44
    toluene 88.51
    isobutanol 101.53
    1,4-dioxane 285.67
    methyl acetate 183.76
    THF 436.1
    2-butanone 249.04
    n-pentanol 124.49
    sec-butanol 135.21
    n-hexane 21.69
    ethylene glycol 51.56
    NMP 579.85
    cyclohexane 37.96
    DMSO 480.13
    n-butyl acetate 192.49
    n-octanol 101.2
    chloroform 301.64
    n-propyl acetate 141.04
    acetic acid 200.62
    dichloromethane 226.87
    cyclohexanone 324.36
    propylene glycol 66.34
    isopropyl acetate 116.69
    DMAc 491.63
    2-ethoxyethanol 196.27
    isopentanol 126.76
    n-heptane 39.19
    ethyl formate 131.87
    1,2-dichloroethane 168.95
    n-hexanol 127.54
    2-methoxyethanol 242.82
    isobutyl acetate 109.27
    tetrachloromethane 88.45
    n-pentyl acetate 161.11
    transcutol 430.04
    n-heptanol 105.9
    ethylbenzene 61.11
    MIBK 145.46
    2-propoxyethanol 202.74
    tert-butanol 185.55
    MTBE 178.39
    2-butoxyethanol 171.28
    propionic acid 124.98
    o-xylene 95.32
    formic acid 86.32
    diethyl ether 140.58
    m-xylene 77.95
    p-xylene 97.89
    chlorobenzene 134.59
    dimethyl carbonate 81.12
    n-octane 22.52
    formamide 135.83
    cyclopentanone 410.82
    2-pentanone 204.12
    anisole 156.45
    cyclopentyl methyl ether 184.6
    gamma-butyrolactone 347.62
    1-methoxy-2-propanol 195.3
    pyridine 218.51
    3-pentanone 154.75
    furfural 384.47
    n-dodecane 18.06
    diethylene glycol 166.73
    diisopropyl ether 72.27
    tert-amyl alcohol 171.99
    acetylacetone 248.74
    n-hexadecane 20.01
    acetophenone 184.55
    methyl propionate 122.15
    isopentyl acetate 176.65
    trichloroethylene 336.3
    n-nonanol 94.0
    cyclohexanol 140.73
    benzyl alcohol 132.07
    2-ethylhexanol 106.89
    isooctanol 95.62
    dipropyl ether 131.87
    1,2-dichlorobenzene 150.12
    ethyl lactate 82.04
    propylene carbonate 204.54
    n-methylformamide 193.35
    2-pentanol 112.87
    n-pentane 29.45
    1-propoxy-2-propanol 185.8
    1-methoxy-2-propyl acetate 185.0
    2-(2-methoxypropoxy) propanol 178.82
    mesitylene 68.78
    ε-caprolactone 260.3
    p-cymene 83.47
    epichlorohydrin 305.4
    1,1,1-trichloroethane 207.91
    2-aminoethanol 83.33
    morpholine-4-carbaldehyde 469.06
    sulfolane 499.22
    2,2,4-trimethylpentane 27.83
    2-methyltetrahydrofuran 280.99
    n-hexyl acetate 163.73
    isooctane 21.66
    2-(2-butoxyethoxy)ethanol 215.74
    sec-butyl acetate 107.71
    tert-butyl acetate 164.45
    decalin 27.74
    glycerin 101.32
    diglyme 381.37
    acrylic acid 128.78
    isopropyl myristate 94.49
    n-butyric acid 159.46
    acetyl acetate 117.48
    di(2-ethylhexyl) phthalate 88.68
    ethyl propionate 98.78
    nitromethane 346.24
    1,2-diethoxyethane 215.92
    benzonitrile 170.37
    trioctyl phosphate 73.79
    1-bromopropane 107.52
    gamma-valerolactone 476.29
    n-decanol 76.27
    triethyl phosphate 95.77
    4-methyl-2-pentanol 82.56
    propionitrile 112.46
    vinylene carbonate 194.15
    1,1,2-trichlorotrifluoroethane 250.69
    DMS 126.01
    cumene 57.17
    2-octanol 95.09
    2-hexanone 178.68
    octyl acetate 111.02
    limonene 124.08
    1,2-dimethoxyethane 330.4
    ethyl orthosilicate 99.57
    tributyl phosphate 86.7
    diacetone alcohol 195.88
    N,N-dimethylaniline 141.0
    acrylonitrile 138.05
    aniline 123.22
    1,3-propanediol 129.14
    bromobenzene 130.24
    dibromomethane 163.01
    1,1,2,2-tetrachloroethane 279.44
    2-methyl-cyclohexyl acetate 144.87
    tetrabutyl urea 123.87
    diisobutyl methanol 90.88
    2-phenylethanol 139.1
    styrene 78.06
    dioctyl adipate 122.24
    dimethyl sulfate 166.46
    ethyl butyrate 143.96
    methyl lactate 93.39
    butyl lactate 130.12
    diethyl carbonate 98.91
    propanediol butyl ether 176.29
    triethyl orthoformate 126.72
    p-tert-butyltoluene 92.31
    methyl 4-tert-butylbenzoate 180.56
    morpholine 284.19
    tert-butylamine 124.49
    n-dodecanol 64.14
    dimethoxymethane 207.89
    ethylene carbonate 148.95
    cyrene 208.69
    2-ethoxyethyl acetate 198.16
    2-ethylhexyl acetate 156.25
    1,2,4-trichlorobenzene 192.32
    4-methylpyridine 253.42
    dibutyl ether 121.54
    2,6-dimethyl-4-heptanol 90.88
    DEF 228.64
    dimethyl isosorbide 291.86
    tetrachloroethylene 194.8
    eugenol 169.67
    triacetin 191.51
    span 80 172.77
    1,4-butanediol 81.55
    1,1-dichloroethane 178.16
    2-methyl-1-pentanol 119.12
    methyl formate 162.67
    2-methyl-1-butanol 115.24
    n-decane 27.46
    butyronitrile 132.7
    3,7-dimethyl-1-octanol 105.74
    1-chlorooctane 77.84
    1-chlorotetradecane 40.22
    n-nonane 26.42
    undecane 21.53
    tert-butylcyclohexane 28.83
    cyclooctane 20.43
    cyclopentanol 163.34
    tetrahydropyran 221.73
    tert-amyl methyl ether 158.13
    2,5,8-trioxanonane 290.28
    1-hexene 60.75
    2-isopropoxyethanol 160.36
    2,2,2-trifluoroethanol 102.41
    methyl butyrate 149.48

    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