Bis(2-ethylhexyl) phosphate

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  • Identifiers

    CAS number
    298-07-7

    Molecular formula
    C16H35O4P

    SMILES
    CCCCC(CC)COP(=O)(O)OCC(CC)CCCC

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Herbal 39.94%
    Oily 34.95%
    Fruity 30.9%
    Mint 30.39%
    Fresh 29.1%
    Odorless 27.87%
    Floral 27.54%
    Woody 24.61%
    Cooling 23.38%
    Citrus 23.35%

     

    Flavor
    Green 36.0%
    Waxy 33.66%
    Mild 32.27%
    Fatty 31.61%
    Oily 30.07%
    Bland 23.98%
    Bay oil 21.87%
    Odorless 21.85%
    Slightly waxy 21.62%
    Cultured dairy 21.27%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    5.2

    pKa est.
    7.59 (neutral)

    Molecular weight
    322.42 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • less than -76 °F (USCG, 1999)
    • -50 °C

    Boiling point

    • 155 °C at 0.015 mm Hg

    Flash point

    • 194.82 ˚C est.
    • 385 °F (USCG, 1999)
    • Flash point equals 385 °F
    • 385 °F (196 °C) (Open cup)
    • About 198 °C (closed cup)
    • 196 °C o.c.

    Solubility expt.

    • Soluble in benzene, hexane, and 4-methyl-2-pentanone
    • In water, 1.82X10+2 mg/L at 25 °C
    • Solubility in water, g/100ml at 20 °C: 0.21

  • Synonyms

    • Bis(2-ethylhexyl) hydrogen phosphate
    • 298-07-7
    • BIS(2-ETHYLHEXYL) PHOSPHATE
    • Bis(2-ethylhexyl)phosphate
    • Di(2-ethylhexyl) phosphate
    • Hdehp
    • di(2-Ethylhexyl)phosphoric acid
    • Bis(2-ethylhexyl)phosphoric acid
    • Escaid 100
    • Di-2-ethylhexyl hydrogen phosphate
    • Bis(2-ethylhexyl)hydrogen phosphate
    • Phosphoric acid, bis(2-ethylhexyl) ester
    • Di(2-ethylhexyl)orthophosphoric acid
    • Hydrogen bis(2-ethylhexyl) phosphate
    • 2-Ethyl-1-hexanol hydrogen phosphate
    • D 2EHPA
    • Di(2-ethylhexyl) phosphoric acid
    • Bis(2-ethylhexyl)orthophosphoric acid
    • HSDB 341
    • Di-2(ethylhexyl)phosphoric acid
    • di-(2-ethylhexyl)phosphoric acid
    • Di-(2-ethylhexyl) acid phosphate
    • Bis(2-ethylhexyl) phosphoric acid
    • EINECS 206-056-4
    • Kyselina di-(2-ethylhexyl)fosforecna
    • Di(2-ethylhexyl) orthophosphoric acid
    • BRN 1712988
    • DTXSID1027134
    • AI3-23072
    • 2Z4W0L3H06
    • Kyselina di-(2-ethylhexyl)fosforecna [Czech]
    • DTXCID407134
    • EC 206-056-4
    • di-(2-ethylhexyl) phosphoric acid
    • Bis-(2-ethylhexyl) phosphate
    • Phosphoric Acid Di(2-ethylhexyl) Ester
    • 2-ETHYL-1-HEXANOL HYDROGEN PHOSPHATE [HSDB]
    • CAS-298-07-7
    • MFCD00009492
    • bis-(2-Ethylhexyl)Hydrogen Phosphate
    • Bis(2-ethylhexyl)phosphoric acid ester
    • UNII-2Z4W0L3H06
    • C16H35O4P
    • Di-2-(ethylhexyl)phosphoric acid
    • Bis(isooctyl)phosphate
    • HOSTAREX PA 216
    • DP 8R
    • di-(2-ethylhexyl) phosphate
    • di-(2-Ethylhexyl)-phosphate
    • SCHEMBL116247
    • CHEMBL1902443
    • Di-(2-ethyl)hexylphosphoric acid
    • P 204 (ACID)
    • LB 58
    • bis(2-ethylhexyl) hydrogenphosphate
    • Bis(2-ethylhexyl) phosphate, 97%
    • Tox21_201622
    • Tox21_303087
    • JP 508
    • MSK002070
    • AKOS015903208
    • FE30030
    • MSK002070-100T
    • BIS(2-ETHYLHEXYL) ORTHOPHOSPHATE
    • NCGC00163976-01
    • NCGC00163976-02
    • NCGC00257178-01
    • NCGC00259171-01
    • phosphoric acid bis-(2-ethyl-hexyl) ester
    • DB-027303
    • O,O-DI(2-ETHYLHEXYL)PHOSPHORIC ACID
    • NS00005874
    • O,O-BIS(2-ETHYLHEXYL)PHOSPHORIC ACID
    • P 204
    • P0811
    • PHOSPHORIC ACID BIS(ETHYLHEXYL) ESTER
    • H11920
    • 1-HEXANOL, 2-ETHYL-, HYDROGEN PHOSPHATE
    • Q5269963
    • ORTHOPHOSPHORIC ACID 2-ETHYLHEXYL ALCOHOL DIESTER
    • Bis(2-ethylhexyl) phosphate Solution in Toluene, 100ug/mL
    • 206-056-4
    • DEPHA;Bis(2-Ethylhexyl) hydrogen phosphate;Di(2-Ethylhexyl) phosphate;Di(2-Ethylhexyl) phosphoric acid

  • Applications

    Bis(2-ethylhexyl) phosphate (CAS number: 298-07-7) is primarily used as a plasticizer for polymers, especially PVC, to improve flexibility and processability; it also serves as a phosphorus-containing flame retardant additive in coatings, textiles, and plastics; it can function as a lubricant or lubricant additive in industrial oils and metalworking fluids; it may be used as an intermediate in the synthesis of other phosphorus-containing esters and surfactants; and it can act as a processing aid in coatings and inks.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 748.2
    methanol 815.52
    isopropanol 633.02
    water 0.84
    ethyl acetate 643.62
    n-propanol 663.31
    acetone 1046.69
    n-butanol 528.94
    acetonitrile 404.41
    DMF 1896.51
    toluene 420.51
    isobutanol 501.16
    1,4-dioxane 866.21
    methyl acetate 615.27
    THF 2067.54
    2-butanone 866.73
    n-pentanol 400.93
    sec-butanol 571.41
    n-hexane 57.34
    ethylene glycol 106.89
    NMP 2177.75
    cyclohexane 169.18
    DMSO 1686.92
    n-butyl acetate 663.27
    n-octanol 239.45
    chloroform 1728.34
    n-propyl acetate 530.63
    acetic acid 483.97
    dichloromethane 1782.68
    cyclohexanone 1649.09
    propylene glycol 245.13
    isopropyl acetate 525.38
    DMAc 1705.15
    2-ethoxyethanol 557.31
    isopentanol 457.77
    n-heptane 41.99
    ethyl formate 404.76
    1,2-dichloroethane 1477.57
    n-hexanol 400.83
    2-methoxyethanol 885.8
    isobutyl acetate 379.59
    tetrachloromethane 257.35
    n-pentyl acetate 600.57
    transcutol 1166.26
    n-heptanol 283.38
    ethylbenzene 185.75
    MIBK 532.0
    2-propoxyethanol 633.71
    tert-butanol 690.72
    MTBE 649.04
    2-butoxyethanol 539.84
    propionic acid 560.5
    o-xylene 284.87
    formic acid 193.14
    diethyl ether 509.89
    m-xylene 273.64
    p-xylene 285.85
    chlorobenzene 625.23
    dimethyl carbonate 271.07
    n-octane 27.6
    formamide 415.2
    cyclopentanone 2028.29
    2-pentanone 775.93
    anisole 362.31
    cyclopentyl methyl ether 876.1
    gamma-butyrolactone 1813.79
    1-methoxy-2-propanol 760.38
    pyridine 1057.31
    3-pentanone 595.08
    furfural 1234.76
    n-dodecane 20.33
    diethylene glycol 364.75
    diisopropyl ether 203.87
    tert-amyl alcohol 606.89
    acetylacetone 834.72
    n-hexadecane 23.82
    acetophenone 476.32
    methyl propionate 567.63
    isopentyl acetate 617.31
    trichloroethylene 2272.16
    n-nonanol 214.56
    cyclohexanol 625.44
    benzyl alcohol 334.98
    2-ethylhexanol 242.94
    isooctanol 240.09
    dipropyl ether 264.34
    1,2-dichlorobenzene 604.32
    ethyl lactate 232.25
    propylene carbonate 934.62
    n-methylformamide 808.14
    2-pentanol 404.08
    n-pentane 63.62
    1-propoxy-2-propanol 490.78
    1-methoxy-2-propyl acetate 571.43
    2-(2-methoxypropoxy) propanol 363.18
    mesitylene 180.09
    ε-caprolactone 1263.85
    p-cymene 142.03
    epichlorohydrin 1785.92
    1,1,1-trichloroethane 1022.38
    2-aminoethanol 337.79
    morpholine-4-carbaldehyde 1340.87
    sulfolane 2364.73
    2,2,4-trimethylpentane 47.29
    2-methyltetrahydrofuran 1289.3
    n-hexyl acetate 603.62
    isooctane 34.0
    2-(2-butoxyethoxy)ethanol 530.03
    sec-butyl acetate 378.33
    tert-butyl acetate 606.64
    decalin 62.71
    glycerin 275.7
    diglyme 959.85
    acrylic acid 444.35
    isopropyl myristate 200.63
    n-butyric acid 725.71
    acetyl acetate 402.6
    di(2-ethylhexyl) phthalate 215.7
    ethyl propionate 407.51
    nitromethane 984.53
    1,2-diethoxyethane 498.65
    benzonitrile 508.84
    trioctyl phosphate 165.28
    1-bromopropane 697.17
    gamma-valerolactone 2074.32
    n-decanol 156.27
    triethyl phosphate 176.8
    4-methyl-2-pentanol 253.8
    propionitrile 425.9
    vinylene carbonate 738.8
    1,1,2-trichlorotrifluoroethane 1030.81
    DMS 433.54
    cumene 135.52
    2-octanol 220.96
    2-hexanone 533.66
    octyl acetate 268.61
    limonene 228.09
    1,2-dimethoxyethane 764.95
    ethyl orthosilicate 175.34
    tributyl phosphate 192.32
    diacetone alcohol 625.83
    N,N-dimethylaniline 285.54
    acrylonitrile 535.46
    aniline 467.71
    1,3-propanediol 488.69
    bromobenzene 689.53
    dibromomethane 1192.44
    1,1,2,2-tetrachloroethane 2083.02
    2-methyl-cyclohexyl acetate 361.83
    tetrabutyl urea 281.5
    diisobutyl methanol 166.3
    2-phenylethanol 353.37
    styrene 238.19
    dioctyl adipate 284.24
    dimethyl sulfate 533.76
    ethyl butyrate 367.35
    methyl lactate 322.98
    butyl lactate 456.19
    diethyl carbonate 221.54
    propanediol butyl ether 470.07
    triethyl orthoformate 259.51
    p-tert-butyltoluene 150.16
    methyl 4-tert-butylbenzoate 438.0
    morpholine 1281.35
    tert-butylamine 439.57
    n-dodecanol 114.22
    dimethoxymethane 772.5
    ethylene carbonate 713.22
    cyrene 392.74
    2-ethoxyethyl acetate 658.22
    2-ethylhexyl acetate 483.75
    1,2,4-trichlorobenzene 708.7
    4-methylpyridine 991.2
    dibutyl ether 248.45
    2,6-dimethyl-4-heptanol 166.3
    DEF 966.62
    dimethyl isosorbide 627.94
    tetrachloroethylene 1196.62
    eugenol 396.23
    triacetin 471.81
    span 80 391.09
    1,4-butanediol 213.16
    1,1-dichloroethane 1103.92
    2-methyl-1-pentanol 343.94
    methyl formate 443.17
    2-methyl-1-butanol 426.45
    n-decane 35.12
    butyronitrile 443.96
    3,7-dimethyl-1-octanol 241.94
    1-chlorooctane 181.7
    1-chlorotetradecane 67.39
    n-nonane 33.16
    undecane 25.73
    tert-butylcyclohexane 52.85
    cyclooctane 49.14
    cyclopentanol 775.07
    tetrahydropyran 1175.35
    tert-amyl methyl ether 470.28
    2,5,8-trioxanonane 538.23
    1-hexene 202.59
    2-isopropoxyethanol 399.51
    2,2,2-trifluoroethanol 228.66
    methyl butyrate 600.71

    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