2-Ethylhexyl diphenyl phosphate

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  • Identifiers

    CAS number
    1241-94-7

    Molecular formula
    C20H27O4P

    SMILES
    CCCCC(CC)COP(=O)(OC1=CC=CC=C1)OC2=CC=CC=C2

    Safety labels

    Acute Toxic
    Acute Toxic

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Floral 63.94%
    Balsamic 53.14%
    Green 52.63%
    Herbal 45.12%
    Rose 36.01%
    Fruity 31.73%
    Fresh 31.08%
    Sweet 30.76%
    Lily 26.82%
    Metallic 25.5%

     

    Flavor
    Green 38.18%
    Waxy 31.68%
    Mild 28.39%
    Herbal 27.97%
    Oily 25.08%
    Balsam 24.35%
    Sweet 23.01%
    Woody 22.92%
    Floral 21.99%
    Fruity 21.43%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    6.3

    pKa est.
    7.77 (neutral)

    Molecular weight
    362.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • -30 °C

    Boiling point

    • 375 °C
    • BP: 232 °C at 5 mm Hg

    Flash point

    • 212.0 ˚C est.
    • 224 °C (435 °F) (Open cup)

    Solubility expt.

    • Insoluble (NTP, 1992)
    • In water, 1.9 mg/L at 25 °C

  • Synonyms

    • 2-Ethylhexyl diphenyl phosphate
    • 1241-94-7
    • Octicizer
    • Phosphoric acid, 2-ethylhexyl diphenyl ester
    • Santicizer 141
    • 2-Ethylhexyldiphenylphosphate
    • (2-Ethylhexyl)-difenylfosfat
    • Diphenyl 2-ethylhexyl phosphate
    • 2-Ethylhexyl diphenylphosphate
    • DIPHENYL-2-ETHYLHEXYL PHOSPHATE
    • DTXSID1025300
    • 1-Hexanol, 2-ethyl-, ester with diphenyl phosphate
    • 4F53Z6NE1Y
    • di(2-ethylhexyl)phenylphosphate
    • Phosphoric Acid 2-Ethylhexyl Diphenyl Ester
    • DTXCID105300
    • RefChem:856052
    • 214-987-2
    • Octicizer [USAN]
    • Phosphoric acid diphenyl 2-ethylhexyl ester
    • MFCD00059949
    • Octicizer (USAN)
    • 2-Ethylhexyl Diphenyl Phosphate (90%)
    • EHDPHP
    • CCRIS 6199
    • HSDB 370
    • EINECS 214-987-2
    • (2-Ethylhexyl)-difenylfosfat [Czech]
    • BRN 2568983
    • UNII-4F53Z6NE1Y
    • AI3-16360
    • Ethylhexyl diphenyl phosphate, 2-
    • Phosflex 362
    • Phosphoric Acid Octyl Diphenyl Ester
    • OCTICIZER [HSDB]
    • 2-Ethylhexyl diphenyl phosphate (technical)
    • EC 214-987-2
    • (+/-)-OCTICIZER
    • SCHEMBL93483
    • 4-06-00-00718 (Beilstein Handbook Reference)
    • orb2945768
    • orb3026059
    • CHEMBL2105213
    • CGSLYBDCEGBZCG-UHFFFAOYSA-
    • CHEBI:188855
    • Tox21_303313
    • MSK001910
    • 2-Ethylhexyl diphenyl phosphate (technical) 100 microg/mL in Acetonitrile
    • AKOS015889797
    • HY-W009066
    • NCGC00257002-01
    • AS-15838
    • DA-16836
    • CAS-1241-94-7
    • 2-Ethylhexyl diphenyl ester phosphoric acid
    • NS00010020
    • P1021
    • 2-Ethylhexyl Diphenyl Phosphate (90per cent)
    • 2-Ethylhexyl diphenyl ester of phosphoric acid
    • D05224
    • D78379
    • 2-Ethyl-1-hexanol ester with diphenyl phosphate
    • Q27259513
    • 2-Ethylhexyl diphenyl phosphate, PESTANAL(R), analytical standard
    • InChI=1/C20H27O4P/c1-3-5-12-18(4-2)17-22-25(21,23-19-13-8-6-9-14-19)24-20-15-10-7-11-16-20/h6-11,13-16,18H,3-5,12,17H2,1-2H3
    • 1241-94-7

  • Applications

    2-Ethylhexyl diphenyl phosphate (CAS 1241-94-7) is a phosphate ester commonly used as a plasticizer and flame-retardant additive in polymer formulations. It functions as a plasticizer for PVC and other polymers to improve flexibility and processability, and as a flame retardant additive in plastics, coatings, and adhesives to enhance fire resistance. It can also serve as a processing aid or lubricant in polymer manufacturing. In electronics-related applications, it is used as a flame-retardant additive in cable insulation and other polymer components. The use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1705.44
    methanol 2359.55
    isopropanol 847.89
    water 2.21
    ethyl acetate 2024.06
    n-propanol 1418.89
    acetone 3627.93
    n-butanol 1008.76
    acetonitrile 2004.63
    DMF 7581.89
    toluene 1540.59
    isobutanol 863.17
    1,4-dioxane 2128.59
    methyl acetate 2242.75
    THF 4321.7
    2-butanone 3074.88
    n-pentanol 550.87
    sec-butanol 953.99
    n-hexane 55.88
    ethylene glycol 209.96
    NMP 5878.42
    cyclohexane 239.74
    DMSO 4513.86
    n-butyl acetate 1011.7
    n-octanol 211.62
    chloroform 7200.06
    n-propyl acetate 936.01
    acetic acid 1487.68
    dichloromethane 8824.17
    cyclohexanone 4312.63
    propylene glycol 345.37
    isopropyl acetate 1024.82
    DMAc 5481.48
    2-ethoxyethanol 829.98
    isopentanol 678.85
    n-heptane 42.97
    ethyl formate 1327.07
    1,2-dichloroethane 7179.14
    n-hexanol 468.82
    2-methoxyethanol 2046.91
    isobutyl acetate 478.23
    tetrachloromethane 469.58
    n-pentyl acetate 760.99
    transcutol 1402.78
    n-heptanol 257.54
    ethylbenzene 350.5
    MIBK 882.54
    2-propoxyethanol 924.56
    tert-butanol 675.36
    MTBE 970.46
    2-butoxyethanol 564.06
    propionic acid 1349.24
    o-xylene 547.73
    formic acid 616.78
    diethyl ether 1303.64
    m-xylene 518.71
    p-xylene 521.58
    chlorobenzene 2613.03
    dimethyl carbonate 1216.4
    n-octane 24.32
    formamide 1791.41
    cyclopentanone 5251.09
    2-pentanone 2201.83
    anisole 873.04
    cyclopentyl methyl ether 1776.27
    gamma-butyrolactone 4923.77
    1-methoxy-2-propanol 1236.7
    pyridine 4579.62
    3-pentanone 1877.64
    furfural 3219.8
    n-dodecane 21.09
    diethylene glycol 515.33
    diisopropyl ether 265.18
    tert-amyl alcohol 686.48
    acetylacetone 2028.8
    n-hexadecane 24.57
    acetophenone 948.05
    methyl propionate 2141.47
    isopentyl acetate 777.63
    trichloroethylene 10167.32
    n-nonanol 196.01
    cyclohexanol 985.07
    benzyl alcohol 668.99
    2-ethylhexanol 242.94
    isooctanol 191.13
    dipropyl ether 382.39
    1,2-dichlorobenzene 1886.51
    ethyl lactate 336.6
    propylene carbonate 2145.75
    n-methylformamide 3457.92
    2-pentanol 595.15
    n-pentane 90.09
    1-propoxy-2-propanol 550.65
    1-methoxy-2-propyl acetate 837.87
    2-(2-methoxypropoxy) propanol 353.78
    mesitylene 250.6
    ε-caprolactone 2789.06
    p-cymene 156.5
    epichlorohydrin 6232.91
    1,1,1-trichloroethane 3252.38
    2-aminoethanol 689.74
    morpholine-4-carbaldehyde 3025.64
    sulfolane 4652.26
    2,2,4-trimethylpentane 45.88
    2-methyltetrahydrofuran 2564.53
    n-hexyl acetate 763.4
    isooctane 26.64
    2-(2-butoxyethoxy)ethanol 527.29
    sec-butyl acetate 537.9
    tert-butyl acetate 856.06
    decalin 60.53
    glycerin 396.42
    diglyme 1219.64
    acrylic acid 1287.28
    isopropyl myristate 218.73
    n-butyric acid 1709.56
    acetyl acetate 1113.52
    di(2-ethylhexyl) phthalate 241.58
    ethyl propionate 851.46
    nitromethane 4125.04
    1,2-diethoxyethane 730.35
    benzonitrile 1278.13
    trioctyl phosphate 166.13
    1-bromopropane 2833.49
    gamma-valerolactone 5084.22
    n-decanol 138.48
    triethyl phosphate 233.66
    4-methyl-2-pentanol 256.85
    propionitrile 1810.01
    vinylene carbonate 2102.34
    1,1,2-trichlorotrifluoroethane 2362.26
    DMS 931.16
    cumene 174.97
    2-octanol 174.39
    2-hexanone 927.43
    octyl acetate 327.91
    limonene 266.38
    1,2-dimethoxyethane 1518.96
    ethyl orthosilicate 206.28
    tributyl phosphate 211.46
    diacetone alcohol 760.29
    N,N-dimethylaniline 489.29
    acrylonitrile 2580.09
    aniline 1497.38
    1,3-propanediol 887.59
    bromobenzene 3010.7
    dibromomethane 5450.37
    1,1,2,2-tetrachloroethane 7453.08
    2-methyl-cyclohexyl acetate 397.61
    tetrabutyl urea 333.2
    diisobutyl methanol 128.59
    2-phenylethanol 533.19
    styrene 632.84
    dioctyl adipate 333.49
    dimethyl sulfate 1739.28
    ethyl butyrate 578.99
    methyl lactate 751.39
    butyl lactate 479.76
    diethyl carbonate 388.12
    propanediol butyl ether 394.21
    triethyl orthoformate 329.63
    p-tert-butyltoluene 143.27
    methyl 4-tert-butylbenzoate 513.63
    morpholine 3336.14
    tert-butylamine 431.61
    n-dodecanol 103.73
    dimethoxymethane 2690.92
    ethylene carbonate 1768.6
    cyrene 462.68
    2-ethoxyethyl acetate 1016.35
    2-ethylhexyl acetate 619.38
    1,2,4-trichlorobenzene 2088.14
    4-methylpyridine 3924.85
    dibutyl ether 300.46
    2,6-dimethyl-4-heptanol 128.59
    DEF 2916.91
    dimethyl isosorbide 757.02
    tetrachloroethylene 3832.06
    eugenol 488.68
    triacetin 616.48
    span 80 362.97
    1,4-butanediol 259.06
    1,1-dichloroethane 4722.29
    2-methyl-1-pentanol 410.01
    methyl formate 2087.16
    2-methyl-1-butanol 774.52
    n-decane 33.0
    butyronitrile 1531.86
    3,7-dimethyl-1-octanol 203.71
    1-chlorooctane 214.77
    1-chlorotetradecane 78.87
    n-nonane 29.38
    undecane 25.27
    tert-butylcyclohexane 40.16
    cyclooctane 50.68
    cyclopentanol 1348.59
    tetrahydropyran 2870.07
    tert-amyl methyl ether 712.5
    2,5,8-trioxanonane 657.77
    1-hexene 315.05
    2-isopropoxyethanol 442.63
    2,2,2-trifluoroethanol 603.25
    methyl butyrate 1248.29

    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