Phenyldichloroarsine

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  • Identifiers

    CAS number
    696-28-6

    Molecular formula
    C6H5AsCl2

    SMILES
    C1=CC=C(C=C1)[As](Cl)Cl

  • Odor profile

    Fragrance
    Sweet 41.47%
    Floral 40.09%
    Fishy 32.07%
    Rose 28.8%
    Animal 26.98%
    Odorless 26.18%
    Balsamic 23.33%
    Bitter 22.93%
    Honey 21.24%
    Citrus 19.3%

     

  • Properties

    pKa est.
    4.37 (weak acid)

    Molecular weight
    222.93 g/mol

    Melting point expt.

    • -4 °F (EPA, 1998)
    • fp: -20 °C

    Boiling point

    • 489.9 to 495.7 °F at 760 mmHg (EPA, 1998)
    • 255 °C

    Flash point

    • 99.41 ˚C est.
    • High enough not to interfere with military use (EPA, 1998)

    Solubility expt.

    • Soluble in acetone
    • Very soluble in alcohol; soluble in ether and benzene
    • Insoluble in water.

  • Synonyms

    • Dichlorophenylarsine
    • Phenyl dichloroarsine
    • PHENYLDICHLOROARSINE
    • Phenyl dichlorarsine
    • dichloro(phenyl)arsane
    • Dichloro(phenyl)arsine
    • Arsine, dichlorophenyl-
    • Arsonous dichloride, phenyl-
    • 696-28-6
    • Phenylarsinedichloride
    • Fenyldichlorarsin
    • Arsine dichloride, phenyl-
    • Fenildicloroarsina
    • Phenylarsine dichloride
    • Dichlor-fenylarsin
    • Phenylarsonous dichloride
    • RCRA waste number P036
    • Fenyldichlorarsin [Czech]
    • Dichlor-fenylarsin [Czech]
    • TL 69
    • Fenildicloroarsina [Italian]
    • Arsonous dichloride, As-phenyl-
    • HSDB 6043
    • EINECS 211-791-9
    • KK93BBF49U
    • BRN 2935646
    • PFIFFIKUS
    • Phenylarsenic dichloride
    • DTXSID7061011
    • PHENYLDICHLOROARSINE [HSDB]
    • 4-16-00-01161 (Beilstein Handbook Reference)
    • RCRA waste no. P036
    • UNII-KK93BBF49U
    • Dichlorfenylarsin
    • Phenyldichlorarsin
    • Arsine, dichlorophenyl
    • FENILIDICLOROARSINA
    • Arsine dichloride, phenyl
    • Arsonous dichloride, phenyl
    • Phenylarsonous dichloride #
    • NA 1556 (Salt/Mix)
    • SCHEMBL873825
    • DTXCID9046528
    • ARSINE, DICHLORO(PHENYL)-
    • FENILIDICLOROARSINA (ITALIAN)
    • AKOS015891223
    • DB-221755
    • NS00079778
    • Q414342
    • 211-791-9

  • Applications

    Phenyldichloroarsine (CAS 696-28-6) is a highly toxic organoarsenic vesicant. Because of its extreme hazard and regulatory controls, practical applications are extremely limited and typically confined to controlled research and niche synthesis. In such settings, it may be used as an intermediate precursor in the synthesis of other organoarsenic compounds, and it is employed in specialized studies of vesicant properties, toxicology, and hazard assessment to inform safety protocols and regulatory compliance. Outside regulated facilities, it is not used in consumer products or standard industrial formulations; any handling requires strict containment, trained personnel, and compliance with local laws.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 61.15
    methanol 38.3
    isopropanol 63.13
    water 0.2
    ethyl acetate 179.96
    n-propanol 68.26
    acetone 300.62
    n-butanol 78.09
    acetonitrile 93.67
    DMF 534.1
    toluene 260.28
    isobutanol 63.95
    1,4-dioxane 482.2
    methyl acetate 208.05
    THF 791.61
    2-butanone 268.79
    n-pentanol 79.09
    sec-butanol 75.12
    n-hexane 17.08
    ethylene glycol 19.74
    NMP 576.63
    cyclohexane 43.82
    DMSO 307.56
    n-butyl acetate 195.64
    n-octanol 92.69
    chloroform 466.85
    n-propyl acetate 166.31
    acetic acid 103.07
    dichloromethane 356.79
    cyclohexanone 495.68
    propylene glycol 31.69
    isopropyl acetate 151.77
    DMAc 422.95
    2-ethoxyethanol 147.24
    isopentanol 81.47
    n-heptane 38.87
    ethyl formate 135.76
    1,2-dichloroethane 267.16
    n-hexanol 112.96
    2-methoxyethanol 185.72
    isobutyl acetate 137.8
    tetrachloromethane 94.62
    n-pentyl acetate 175.8
    transcutol 451.25
    n-heptanol 85.47
    ethylbenzene 118.67
    MIBK 177.34
    2-propoxyethanol 212.66
    tert-butanol 101.19
    MTBE 173.84
    2-butoxyethanol 157.99
    propionic acid 77.63
    o-xylene 159.44
    formic acid 24.86
    diethyl ether 161.55
    m-xylene 160.35
    p-xylene 145.39
    chlorobenzene 275.09
    dimethyl carbonate 137.6
    n-octane 21.51
    formamide 59.56
    cyclopentanone 615.15
    2-pentanone 236.98
    anisole 286.77
    cyclopentyl methyl ether 338.87
    gamma-butyrolactone 479.56
    1-methoxy-2-propanol 166.84
    pyridine 438.25
    3-pentanone 206.0
    furfural 580.82
    n-dodecane 18.27
    diethylene glycol 137.65
    diisopropyl ether 81.46
    tert-amyl alcohol 106.74
    acetylacetone 351.81
    n-hexadecane 21.12
    acetophenone 277.57
    methyl propionate 175.52
    isopentyl acetate 181.36
    trichloroethylene 626.96
    n-nonanol 89.63
    cyclohexanol 148.38
    benzyl alcohol 191.88
    2-ethylhexanol 104.5
    isooctanol 80.46
    dipropyl ether 141.97
    1,2-dichlorobenzene 254.35
    ethyl lactate 87.91
    propylene carbonate 280.92
    n-methylformamide 147.95
    2-pentanol 74.04
    n-pentane 20.71
    1-propoxy-2-propanol 181.05
    1-methoxy-2-propyl acetate 237.45
    2-(2-methoxypropoxy) propanol 180.24
    mesitylene 109.0
    ε-caprolactone 379.46
    p-cymene 105.4
    epichlorohydrin 563.13
    1,1,1-trichloroethane 313.46
    2-aminoethanol 39.07
    morpholine-4-carbaldehyde 637.65
    sulfolane 588.37
    2,2,4-trimethylpentane 20.42
    2-methyltetrahydrofuran 454.91
    n-hexyl acetate 197.68
    isooctane 17.44
    2-(2-butoxyethoxy)ethanol 225.02
    sec-butyl acetate 133.37
    tert-butyl acetate 209.66
    decalin 33.21
    glycerin 53.67
    diglyme 443.31
    acrylic acid 84.02
    isopropyl myristate 104.66
    n-butyric acid 125.08
    acetyl acetate 160.61
    di(2-ethylhexyl) phthalate 99.1
    ethyl propionate 139.5
    nitromethane 253.03
    1,2-diethoxyethane 251.55
    benzonitrile 254.6
    trioctyl phosphate 78.4
    1-bromopropane 148.87
    gamma-valerolactone 738.08
    n-decanol 72.88
    triethyl phosphate 96.8
    4-methyl-2-pentanol 62.17
    propionitrile 102.77
    vinylene carbonate 284.98
    1,1,2-trichlorotrifluoroethane 357.39
    DMS 184.38
    cumene 81.57
    2-octanol 78.03
    2-hexanone 198.95
    octyl acetate 119.59
    limonene 142.97
    1,2-dimethoxyethane 363.47
    ethyl orthosilicate 95.74
    tributyl phosphate 85.86
    diacetone alcohol 221.9
    N,N-dimethylaniline 199.82
    acrylonitrile 142.36
    aniline 216.24
    1,3-propanediol 64.32
    bromobenzene 310.34
    dibromomethane 244.52
    1,1,2,2-tetrachloroethane 462.21
    2-methyl-cyclohexyl acetate 164.25
    tetrabutyl urea 134.14
    diisobutyl methanol 80.1
    2-phenylethanol 203.3
    styrene 161.51
    dioctyl adipate 134.61
    dimethyl sulfate 238.86
    ethyl butyrate 156.61
    methyl lactate 103.0
    butyl lactate 125.63
    diethyl carbonate 106.35
    propanediol butyl ether 148.06
    triethyl orthoformate 131.71
    p-tert-butyltoluene 109.27
    methyl 4-tert-butylbenzoate 210.02
    morpholine 433.77
    tert-butylamine 70.38
    n-dodecanol 61.73
    dimethoxymethane 315.41
    ethylene carbonate 212.43
    cyrene 257.56
    2-ethoxyethyl acetate 252.68
    2-ethylhexyl acetate 165.81
    1,2,4-trichlorobenzene 312.37
    4-methylpyridine 432.63
    dibutyl ether 125.01
    2,6-dimethyl-4-heptanol 80.1
    DEF 285.94
    dimethyl isosorbide 395.04
    tetrachloroethylene 306.28
    eugenol 222.19
    triacetin 211.79
    span 80 173.09
    1,4-butanediol 42.28
    1,1-dichloroethane 237.87
    2-methyl-1-pentanol 84.66
    methyl formate 165.7
    2-methyl-1-butanol 76.91
    n-decane 27.68
    butyronitrile 125.63
    3,7-dimethyl-1-octanol 98.77
    1-chlorooctane 87.46
    1-chlorotetradecane 45.15
    n-nonane 26.17
    undecane 21.76
    tert-butylcyclohexane 30.57
    cyclooctane 24.58
    cyclopentanol 165.44
    tetrahydropyran 385.81
    tert-amyl methyl ether 162.16
    2,5,8-trioxanonane 329.71
    1-hexene 61.09
    2-isopropoxyethanol 138.3
    2,2,2-trifluoroethanol 60.18
    methyl butyrate 185.42

    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