Diphenyl cresyl phosphate

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  • Identifiers

    CAS number
    26444-49-5

    Molecular formula
    C19H17O4P

    SMILES
    CC1=CC=CC=C1OP(=O)(OC2=CC=CC=C2)OC3=CC=CC=C3

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Floral 67.32%
    Green 64.06%
    Balsamic 52.14%
    Rose 44.68%
    Metallic 37.64%
    Herbal 34.64%
    Fruity 32.32%
    Phenolic 31.95%
    Geranium 31.05%
    Leafy 28.1%

     

    Flavor
    Sweet 47.05%
    Balsam 39.3%
    Herbal 37.87%
    Bitter 35.65%
    Floral 30.74%
    Honey 26.38%
    Balsamic 25.89%
    Phenolic 25.62%
    Powdery 23.1%
    Mild 22.91%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    5.3

    pKa est.
    8.41 (weak base)

    Molecular weight
    340.3 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • Freezing point: -38 °C

    Boiling point

    • 390 °C at 760 mm Hg

    Flash point

    • 219.16 ˚C est.
    • 450 °F (232 °C) (Closed cup)

    Solubility expt.

    • In water, 2.4 mg/L at 25 °C
    • In water, 2.6 mg/L at 25 °C
    • Insoluble in glycerol; soluble in most organic solvents except glycerol

  • Synonyms

    • Diphenylcresyl phosphate
    • Disflamoll DPK
    • Phosphoric acid, methylphenyl diphenyl ester
    • o-Tolyldiphenylphosphate
    • Diphenyl tolyl phosphate
    • Tolyl diphenyl phosphate
    • Cresyldiphenyl phosphate
    • Phosphoric acid, diphenyl tolyl ester
    • Phosphoric acid, methylphenyldiphenyle
    • 4P1854YU14
    • CCRIS 4773
    • HSDB 6096
    • EINECS 247-693-8
    • AI3-07853
    • DTXSID3024861
    • RefChem:588820
    • DTXCID501323298
    • PHOSPHORIC ACID, METHYLPHENYL DIPHENYL ESTER(9CI)
    • PHOSPHORIC ACID, METHYLPHENYL DIPHENYL ESTER (9CI)
    • 26444-49-5
    • Cresyl diphenyl phosphate
    • Diphenyl cresyl phosphate
    • Phosphoric acid, 2-methylphenyl diphenyl ester
    • 2-Methylphenyl diphenyl phosphate
    • 5254-12-6
    • diphenyl o-tolyl phosphate
    • (2-methylphenyl) diphenyl phosphate
    • Cresol diphenyl phosphate
    • CDPhP
    • Diphenyl-o-tolyl phoshate
    • Kronitex CDP
    • Santicizer 140
    • Phosflex 112
    • Cresyl diphenylphosphate
    • Phenyl o-tolyl phosphate
    • Diphenyl cresol phosphate
    • o-Cresyl diphenylphosphate
    • o-tolyl diphenyl phosphate
    • Diphenyl-o-tolyl phosphate
    • Kronitex CDP (Salt/Mix)
    • o-Cresyl diphenyl phosphate
    • Disflamoll DPK (Salt/Mix)
    • Phosflex 112 (Salt/Mix)
    • Santicizer 140 (Salt/Mix)
    • SCHEMBL866536
    • Methylphenyl diphenyl phosphate
    • Mono-o-cresyl diphenyl phosphate
    • SCHEMBL29583483
    • UNII-4P1854YU14
    • DTXSID70200530
    • AKOS028108687
    • Phosphoric acid, diphenyl o-tolyl ester
    • NS00019488
    • D97372
    • Q21547024
    • 26444-49-5

  • Applications

    Diphenyl cresyl phosphate is a phosphorus ester used as a flame-retardant additive in polymers and coatings. It can also function as a plasticizer or processing aid in certain resin systems, improving flexibility and processability. In PVC formulations it is used as a stabilizer and processing additive to enhance fire performance and manufacturability. It is employed as an additive in coatings, paints, and adhesives to impart flame retardancy. As an intermediate, it may serve in the synthesis of other phosphorus-containing flame retardants. It may also be evaluated for use in electronic resin formulations (epoxy systems) to improve flame performance.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 275.12
    methanol 340.63
    isopropanol 128.62
    water 0.47
    ethyl acetate 364.9
    n-propanol 215.79
    acetone 667.23
    n-butanol 181.66
    acetonitrile 359.92
    DMF 2395.66
    toluene 278.84
    isobutanol 120.3
    1,4-dioxane 605.66
    methyl acetate 423.48
    THF 1569.27
    2-butanone 578.65
    n-pentanol 85.24
    sec-butanol 138.25
    n-hexane 13.99
    ethylene glycol 39.47
    NMP 1363.48
    cyclohexane 51.89
    DMSO 1097.05
    n-butyl acetate 190.66
    n-octanol 51.4
    chloroform 1381.95
    n-propyl acetate 138.31
    acetic acid 243.88
    dichloromethane 1459.14
    cyclohexanone 796.16
    propylene glycol 50.93
    isopropyl acetate 181.13
    DMAc 1604.57
    2-ethoxyethanol 143.9
    isopentanol 111.09
    n-heptane 17.38
    ethyl formate 280.81
    1,2-dichloroethane 1193.07
    n-hexanol 107.73
    2-methoxyethanol 490.58
    isobutyl acetate 77.88
    tetrachloromethane 62.56
    n-pentyl acetate 131.99
    transcutol 278.79
    n-heptanol 58.96
    ethylbenzene 75.51
    MIBK 168.56
    2-propoxyethanol 243.54
    tert-butanol 109.98
    MTBE 152.89
    2-butoxyethanol 127.8
    propionic acid 200.61
    o-xylene 102.11
    formic acid 109.82
    diethyl ether 296.14
    m-xylene 92.68
    p-xylene 90.78
    chlorobenzene 471.58
    dimethyl carbonate 287.79
    n-octane 9.13
    formamide 340.36
    cyclopentanone 1230.43
    2-pentanone 413.73
    anisole 184.8
    cyclopentyl methyl ether 391.75
    gamma-butyrolactone 1071.19
    1-methoxy-2-propanol 280.81
    pyridine 1184.47
    3-pentanone 386.06
    furfural 839.98
    n-dodecane 8.83
    diethylene glycol 136.14
    diisopropyl ether 48.9
    tert-amyl alcohol 105.53
    acetylacetone 422.16
    n-hexadecane 9.97
    acetophenone 181.05
    methyl propionate 416.51
    isopentyl acetate 144.36
    trichloroethylene 1818.97
    n-nonanol 52.62
    cyclohexanol 157.02
    benzyl alcohol 121.9
    2-ethylhexanol 59.76
    isooctanol 43.27
    dipropyl ether 108.39
    1,2-dichlorobenzene 337.0
    ethyl lactate 67.38
    propylene carbonate 437.25
    n-methylformamide 729.71
    2-pentanol 93.01
    n-pentane 20.06
    1-propoxy-2-propanol 144.37
    1-methoxy-2-propyl acetate 201.94
    2-(2-methoxypropoxy) propanol 111.3
    mesitylene 47.09
    ε-caprolactone 494.6
    p-cymene 41.95
    epichlorohydrin 1456.69
    1,1,1-trichloroethane 435.51
    2-aminoethanol 114.92
    morpholine-4-carbaldehyde 719.71
    sulfolane 1011.99
    2,2,4-trimethylpentane 9.31
    2-methyltetrahydrofuran 551.3
    n-hexyl acetate 141.9
    isooctane 5.99
    2-(2-butoxyethoxy)ethanol 147.38
    sec-butyl acetate 89.27
    tert-butyl acetate 151.42
    decalin 15.02
    glycerin 76.76
    diglyme 305.7
    acrylic acid 214.02
    isopropyl myristate 61.8
    n-butyric acid 284.04
    acetyl acetate 216.89
    di(2-ethylhexyl) phthalate 64.24
    ethyl propionate 162.03
    nitromethane 798.38
    1,2-diethoxyethane 155.09
    benzonitrile 243.05
    trioctyl phosphate 46.91
    1-bromopropane 480.44
    gamma-valerolactone 1143.97
    n-decanol 40.33
    triethyl phosphate 65.87
    4-methyl-2-pentanol 45.36
    propionitrile 325.87
    vinylene carbonate 465.35
    1,1,2-trichlorotrifluoroethane 475.0
    DMS 204.88
    cumene 37.22
    2-octanol 40.04
    2-hexanone 164.06
    octyl acetate 82.08
    limonene 60.88
    1,2-dimethoxyethane 401.89
    ethyl orthosilicate 57.23
    tributyl phosphate 56.86
    diacetone alcohol 154.92
    N,N-dimethylaniline 109.78
    acrylonitrile 502.81
    aniline 282.65
    1,3-propanediol 170.32
    bromobenzene 501.63
    dibromomethane 923.26
    1,1,2,2-tetrachloroethane 1305.54
    2-methyl-cyclohexyl acetate 89.42
    tetrabutyl urea 98.44
    diisobutyl methanol 35.23
    2-phenylethanol 129.92
    styrene 121.22
    dioctyl adipate 89.62
    dimethyl sulfate 392.77
    ethyl butyrate 133.15
    methyl lactate 163.81
    butyl lactate 95.4
    diethyl carbonate 96.97
    propanediol butyl ether 83.42
    triethyl orthoformate 84.61
    p-tert-butyltoluene 38.75
    methyl 4-tert-butylbenzoate 128.43
    morpholine 797.22
    tert-butylamine 69.58
    n-dodecanol 32.55
    dimethoxymethane 828.09
    ethylene carbonate 364.93
    cyrene 114.82
    2-ethoxyethyl acetate 186.47
    2-ethylhexyl acetate 119.11
    1,2,4-trichlorobenzene 370.01
    4-methylpyridine 809.41
    dibutyl ether 75.21
    2,6-dimethyl-4-heptanol 35.23
    DEF 633.48
    dimethyl isosorbide 228.96
    tetrachloroethylene 638.97
    eugenol 126.46
    triacetin 127.61
    span 80 100.34
    1,4-butanediol 37.38
    1,1-dichloroethane 657.67
    2-methyl-1-pentanol 69.94
    methyl formate 525.71
    2-methyl-1-butanol 120.49
    n-decane 12.47
    butyronitrile 285.63
    3,7-dimethyl-1-octanol 48.53
    1-chlorooctane 52.61
    1-chlorotetradecane 25.86
    n-nonane 11.0
    undecane 10.01
    tert-butylcyclohexane 10.17
    cyclooctane 13.16
    cyclopentanol 231.9
    tetrahydropyran 650.04
    tert-amyl methyl ether 131.57
    2,5,8-trioxanonane 205.15
    1-hexene 63.32
    2-isopropoxyethanol 77.31
    2,2,2-trifluoroethanol 95.93
    methyl butyrate 225.78

    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