Butyl octyl phthalate

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  • Identifiers

    CAS number
    84-78-6

    Molecular formula
    C20H30O4

    SMILES
    CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Floral 64.01%
    Balsamic 60.07%
    Herbal 54.93%
    Green 45.2%
    Oily 38.25%
    Sweet 37.13%
    Fresh 33.7%
    Fruity 32.67%
    Jasmin 32.35%
    Odorless 27.58%

     

    Flavor
    Balsam 32.42%
    Herbal 32.02%
    Waxy 28.32%
    Oily 28.1%
    Fruity 25.71%
    Woody 23.37%
    Floral 22.61%
    Sappy 21.95%
    Faint 21.45%
    Warm 21.29%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    6.9

    pKa est.
    6.13 (neutral)

    Molecular weight
    334.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    405°C

    Flash point

    • 187.51 ˚C est.

  • Synonyms

    • Butyl octyl phthalate
    • Plasticizer OBP
    • Staflex BOP
    • Plasticizer BOP
    • Octyl butyl phthalate
    • Truflex OBP
    • 1,2-Benzenedicarboxylic acid, butyl octyl ester
    • PX 914
    • Phthalic acid, butyl octyl ester
    • NSC 69894
    • 1-O-butyl 2-O-octyl benzene-1,2-dicarboxylate
    • EINECS 201-562-1
    • UNII-Y52J9Q533Y
    • BRN 2289337
    • 1,2-Benzenedicarboxylic acid, 1-butyl 2-octyl ester
    • Y52J9Q533Y
    • NSC-69894
    • DTXSID2052578
    • Butyl octyl phthalic acid
    • RefChem:122285
    • Phthalic acid, butyl octyl ester (6CI,7CI,8CI)
    • DTXCID3031151
    • 201-562-1
    • MURWRBWZIMXKGC-UHFFFAOYSA-N
    • 84-78-6
    • MFCD00072261
    • 1-butyl 2-octyl benzene-1,2-dicarboxylate
    • Phthalic acid, butyloctyl ester
    • Butyl octyl phthalate(Technical)
    • 1, butyl octyl ester
    • O1-butyl O2-octyl benzene-1,2-dicarboxylate
    • SCHEMBL50451
    • 1-Butyl 2-octyl phthalate #
    • MSK1164
    • NSC69894
    • AKOS016008507
    • Butyl octyl benzene-1,2-dicarboxylate
    • AS-57441
    • CS-0134595
    • NS00022833
    • C13887
    • Q27294278
    • 84-78-6

  • Applications

    Butyl octyl phthalate (CAS 84-78-6) is primarily used as a plasticizer for PVC and other polymers to impart flexibility and processability. It is also employed as a softening additive in coatings, paints, and inks to improve elasticity and handling characteristics. In industry, it often serves as a plasticizer for adhesives and bonding systems, and is incorporated into synthetic elastomers and other flexible materials to maintain softness. Additionally, it can be used in the production of flexible films and packaging materials, as well as in electrical insulation related formulations for cables and related components, depending on local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1234.19
    methanol 1467.07
    isopropanol 785.12
    water 0.75
    ethyl acetate 4033.25
    n-propanol 1300.65
    acetone 3757.85
    n-butanol 1094.93
    acetonitrile 2800.34
    DMF 6992.29
    toluene 2612.96
    isobutanol 960.97
    1,4-dioxane 1982.52
    methyl acetate 3519.97
    THF 3405.85
    2-butanone 4300.72
    n-pentanol 654.43
    sec-butanol 1135.9
    n-hexane 96.0
    ethylene glycol 108.09
    NMP 8260.35
    cyclohexane 340.28
    DMSO 3753.87
    n-butyl acetate 1683.22
    n-octanol 233.92
    chloroform 7431.93
    n-propyl acetate 1935.55
    acetic acid 1646.54
    dichloromethane 10582.76
    cyclohexanone 6467.97
    propylene glycol 195.81
    isopropyl acetate 2272.37
    DMAc 7439.58
    2-ethoxyethanol 1229.78
    isopentanol 989.24
    n-heptane 34.74
    ethyl formate 1434.91
    1,2-dichloroethane 9186.51
    n-hexanol 461.27
    2-methoxyethanol 1898.33
    isobutyl acetate 976.65
    tetrachloromethane 962.91
    n-pentyl acetate 1258.92
    transcutol 3090.92
    n-heptanol 266.26
    ethylbenzene 829.92
    MIBK 1570.31
    2-propoxyethanol 1059.24
    tert-butanol 906.16
    MTBE 1657.29
    2-butoxyethanol 783.08
    propionic acid 1660.71
    o-xylene 1217.71
    formic acid 429.96
    diethyl ether 1977.46
    m-xylene 1084.19
    p-xylene 1089.85
    chlorobenzene 3449.93
    dimethyl carbonate 1465.25
    n-octane 22.32
    formamide 1429.35
    cyclopentanone 6187.01
    2-pentanone 3357.89
    anisole 1696.79
    cyclopentyl methyl ether 2933.65
    gamma-butyrolactone 6113.06
    1-methoxy-2-propanol 1408.67
    pyridine 6001.47
    3-pentanone 3182.67
    furfural 4204.75
    n-dodecane 17.07
    diethylene glycol 486.31
    diisopropyl ether 486.52
    tert-amyl alcohol 1143.88
    acetylacetone 3442.28
    n-hexadecane 21.04
    acetophenone 1971.79
    methyl propionate 3575.37
    isopentyl acetate 1489.42
    trichloroethylene 13292.54
    n-nonanol 232.2
    cyclohexanol 1609.14
    benzyl alcohol 1140.55
    2-ethylhexanol 329.71
    isooctanol 253.36
    dipropyl ether 525.99
    1,2-dichlorobenzene 3073.14
    ethyl lactate 616.86
    propylene carbonate 2873.22
    n-methylformamide 2953.11
    2-pentanol 834.82
    n-pentane 100.7
    1-propoxy-2-propanol 763.14
    1-methoxy-2-propyl acetate 1613.83
    2-(2-methoxypropoxy) propanol 609.37
    mesitylene 515.68
    ε-caprolactone 4889.41
    p-cymene 267.37
    epichlorohydrin 7595.16
    1,1,1-trichloroethane 5741.67
    2-aminoethanol 425.69
    morpholine-4-carbaldehyde 4002.72
    sulfolane 6221.74
    2,2,4-trimethylpentane 77.24
    2-methyltetrahydrofuran 3704.96
    n-hexyl acetate 1216.66
    isooctane 39.03
    2-(2-butoxyethoxy)ethanol 863.17
    sec-butyl acetate 1359.69
    tert-butyl acetate 2061.82
    decalin 149.33
    glycerin 256.52
    diglyme 2139.1
    acrylic acid 1389.14
    isopropyl myristate 345.45
    n-butyric acid 2425.31
    acetyl acetate 2223.79
    di(2-ethylhexyl) phthalate 335.68
    ethyl propionate 1990.47
    nitromethane 4806.59
    1,2-diethoxyethane 1498.89
    benzonitrile 1939.82
    trioctyl phosphate 212.38
    1-bromopropane 4044.36
    gamma-valerolactone 6342.01
    n-decanol 152.02
    triethyl phosphate 481.77
    4-methyl-2-pentanol 390.23
    propionitrile 2509.2
    vinylene carbonate 2539.53
    1,1,2-trichlorotrifluoroethane 3259.66
    DMS 1455.18
    cumene 405.71
    2-octanol 209.83
    2-hexanone 1658.78
    octyl acetate 478.3
    limonene 486.68
    1,2-dimethoxyethane 2150.77
    ethyl orthosilicate 433.06
    tributyl phosphate 323.95
    diacetone alcohol 1508.75
    N,N-dimethylaniline 1023.88
    acrylonitrile 3390.0
    aniline 2421.34
    1,3-propanediol 664.92
    bromobenzene 3905.31
    dibromomethane 6274.64
    1,1,2,2-tetrachloroethane 10148.35
    2-methyl-cyclohexyl acetate 799.16
    tetrabutyl urea 460.48
    diisobutyl methanol 194.69
    2-phenylethanol 768.99
    styrene 1287.63
    dioctyl adipate 545.49
    dimethyl sulfate 2256.83
    ethyl butyrate 1138.79
    methyl lactate 1036.38
    butyl lactate 748.65
    diethyl carbonate 709.31
    propanediol butyl ether 485.05
    triethyl orthoformate 624.76
    p-tert-butyltoluene 244.25
    methyl 4-tert-butylbenzoate 953.29
    morpholine 3617.0
    tert-butylamine 579.7
    n-dodecanol 108.18
    dimethoxymethane 2859.17
    ethylene carbonate 2222.51
    cyrene 795.57
    2-ethoxyethyl acetate 1796.31
    2-ethylhexyl acetate 1163.12
    1,2,4-trichlorobenzene 3608.08
    4-methylpyridine 6161.25
    dibutyl ether 532.63
    2,6-dimethyl-4-heptanol 194.69
    DEF 5611.7
    dimethyl isosorbide 1314.73
    tetrachloroethylene 5952.36
    eugenol 816.38
    triacetin 1197.69
    span 80 494.22
    1,4-butanediol 247.45
    1,1-dichloroethane 6607.41
    2-methyl-1-pentanol 742.32
    methyl formate 1631.01
    2-methyl-1-butanol 1201.17
    n-decane 30.76
    butyronitrile 1974.88
    3,7-dimethyl-1-octanol 295.43
    1-chlorooctane 291.29
    1-chlorotetradecane 89.69
    n-nonane 27.43
    undecane 21.19
    tert-butylcyclohexane 92.6
    cyclooctane 76.4
    cyclopentanol 1517.56
    tetrahydropyran 3136.09
    tert-amyl methyl ether 1523.53
    2,5,8-trioxanonane 1122.5
    1-hexene 560.8
    2-isopropoxyethanol 828.87
    2,2,2-trifluoroethanol 747.83
    methyl butyrate 2717.99

    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