Dibutyl Phthalate

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  • Identifiers

    CAS number
    84-74-2

    Molecular formula
    C16H22O4

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

    Safety labels

    Health Hazard
    Health

    Environmental Hazard
    Environmental

    Retention indicies (RI)

    • Carbowax: 2684.0

  • Odor profile

    Floral 54.73%
    Balsamic 53.31%
    Herbal 53.3%
    Fruity 38.54%
    Sweet 36.02%
    Green 34.45%
    Odorless 33.84%
    Winey 32.44%
    Woody 23.68%
    Jasmin 23.61%

    Scent© AI

    Odor threshold

    • In humans, an olfactory threshold value ranging from 0.26 to 1.47 mg/cu m /was found/.

  • Properties

    XLogP3-AA
    4.7

    pKa est.
    5.72 (weak acid)

    Molecular weight
    278.34 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • -31 °F (NTP, 1992)
    • -35 °C
    • 35 °C
    • -31 °F

    Boiling point

    • 644 °F at 760 mmHg (NTP, 1992)
    • 340 °C
    • 337.00 to 340.00 °C. @ 760.00 mm Hg
    • 644 °F

    Flash point est.
    163.2 ˚C

    Flash point expt.

    • 315 °F (NTP, 1992)
    • 315 °F
    • 315 °F (157 °C) (Closed cup)
    • 157 °C c.c.

    Solubility expt.

    • less than 1 mg/mL at 68 °F (NTP, 1992)
    • More soluble in /perspiration/ than in water & increased solubility with pH rise
    • In water, 11.2 mg/L at 20 °C
    • 0.001% in water at 30 °C
    • Very soluble in acetone, benzene
    • Miscible with ethanol, ethyl ether, benzene; soluble in carbon tetrachloride
    • Soluble in most organic solvents and oils
    • 0.0112 mg/mL at 25 °C
    • Solubility in water, g/100ml at 25 °C: 0.001
    • (77 °F): 0.001%

  • Synonyms

    • dibutyl phthalate
    • 84-74-2
    • Di-n-butyl phthalate
    • n-Butyl phthalate
    • Butyl phthalate
    • Genoplast B
    • Palatinol C
    • Celluflex DPB
    • DIBUTYLPHTHALATE
    • Unimoll DB
    • Staflex DBP
    • Elaol
    • Ergoplast FDB
    • Witcizer 300
    • Kodaflex DBP
    • Dibutyl 1,2-benzenedicarboxylate
    • Hexaplas M/B
    • Dibutyl-o-phthalate
    • Phthalic acid dibutyl ester
    • dibutyl benzene-1,2-dicarboxylate
    • 1,2-Benzenedicarboxylic acid, dibutyl ester
    • DBP (ester)
    • dibutyl-phthalate
    • N-Butylphthalate
    • Ersoplast FDA
    • Uniflex DBP
    • Hatcol DBP
    • Phthalate, di-n-butyl
    • Dibutyl o-phthalate
    • RC Plasticizer DBP
    • Phthalic acid, dibutyl ester
    • Benzene-o-dicarboxylic acid di-n-butyl ester
    • o-Benzenedicarboxylic acid, dibutyl ester
    • Phthalate, dibutyl-
    • RCRA waste number U069
    • nutyl phthalate
    • Caswell No. 292
    • Monocizer dbp
    • Plasthall dbp
    • Vestinol c
    • Hatco dbp
    • Phthalate, Butyl
    • PX 104
    • Phthalic acid di-n-butyl ester
    • Phthalate, Dibutyl
    • Ruifeng vp 201
    • Corflex 440
    • NSC 6370
    • Di n Butyl Phthalate
    • ortho-Dibutyl phthalate
    • Yh-1bd2
    • CCRIS 2676
    • HSDB 922
    • Di-n-butylorthophthalate
    • Di-n-butylester kyseliny ftalove
    • DTXSID2021781
    • CHEBI:34687
    • Dibutyl-1,2-benzenedicarboxylate
    • Dibutylphthatlate
    • Palatinol DBP
    • NSC-6370
    • EINECS 201-557-4
    • di-n-butyl phthalate (DBuP)
    • EPA Pesticide Chemical Code 028001
    • UNII-2286E5R2KE
    • BRN 1914064
    • Morflex 240
    • o-Benzenedicarboxylic acid dibutyl ester
    • Uniplex 150
    • Vp-201
    • 2286E5R2KE
    • AI-3-00283
    • MFCD00009441
    • Benzenedicarboxylic acid dibutyl ester
    • 1,2-Benzenedicarboxylic acid, 1,2-dibutyl ester
    • 1,2-Benzenedicarboxylic acid dibutyl ester
    • CHEMBL272485
    • DTXCID301781
    • Benzene-o-dicarboxylic acid, di-n-butyl ester
    • NSC6370
    • EC 201-557-4
    • 1,2-dibutyl benzene-1,2-dicarboxylate
    • Dibutyl ester of 1,2-benzenedicarboxylic acid
    • DIBUTYL PHTHALATE (II)
    • DIBUTYL PHTHALATE [II]
    • DIBUTYL PHTHALATE (MART.)
    • DIBUTYL PHTHALATE [MART.]
    • DIBUTYL PHTHALATE (USP-RS)
    • DIBUTYL PHTHALATE [USP-RS]
    • dibutyl phthalate (DBP)
    • CAS-84-74-2
    • DIBUTYL PHTHALATE (EP MONOGRAPH)
    • DIBUTYL PHTHALATE [EP MONOGRAPH]
    • 201-557-4
    • RAPIDCELLtrade markP
    • Dibutyl phthalate [NF]
    • SR-05000001549
    • RCRA waste no. U069
    • Di-n-butylester kyseliny ftalove [Czech]
    • Bufa
    • Phthalic acid, bis-butyl ester
    • Ergoplast FOB
    • Synolate MD
    • Bisoflex DBP
    • Induflex DBP
    • Mollan B
    • Dibutyll phthalate
    • Ersoplast FDA.
    • Dibutyl 1,2-benzene-dicarboxylate
    • Hatcp DBP
    • Araldite 502
    • phthalsauredibutylester
    • Benzenedicarboxylic acid, dibutyl ester
    • Ftalato di n-butanolo
    • Bis-N-butyl phthalate
    • Sicol 140
    • Spectrum_001975
    • Di(1-butyl) phthalate
    • Phthalsaeure dibutylester
    • SpecPlus_000628
    • Dibutyl phthalate, 99%
    • Spectrum3_000874
    • Spectrum4_000714
    • Spectrum5_002068
    • WITICIZER 300
    • Epitope ID:138714
    • WLN: 4OVR BVO2
    • Dibutyl phthalate, >=99%

  • Applications

    Dibutyl phthalate (DBP, CAS 84-74-2) is a high-solvating plasticizer used to increase flexibility, processability, and bend/fatigue resistance of PVC, cellulose esters (e.g., cellulose acetate), nitrocellulose, ethyl cellulose, and synthetic rubbers; in compounding it lowers melt viscosity and facilitates calendering, film/sheet production, extrusion, and injection molding for flexible films, tubing, cable insulation, coated fabrics, artificial leather, and flooring; in paints, printing inks, and nitrocellulose lacquers it acts as a plasticizer and dispersant, improving adhesion, gloss, crack resistance, and color stability; in adhesives, sealants, and caulks DBP enhances tack, flexibility, and crack resistance; in ballpoint and heat-transfer inks it serves as a carrier/vehicle and pigment dispersant with controlled evaporation to tune viscosity and open time; in rubber compounding it functions as a plasticizer/coupling agent to reduce hysteresis and improve elasticity; in lubricant additives, metalworking fluids, and rust preventives it contributes wetting and solvency for additive packages; it has been used in cosmetics such as nail polish as a plasticizer and fragrance fixative to improve film durability and gloss; it also serves as a solvent carrier in agrochemical formulations, a vehicle for fragrances, and a processing aid for pigments, with selection driven by its strong solvating power for polar resins, pigment compatibility, and glass-transition-lowering effect.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 683.5
    methanol 804.62
    isopropanol 425.01
    water 0.45
    ethyl acetate 2332.82
    n-propanol 676.27
    acetone 2639.07
    n-butanol 601.24
    acetonitrile 2471.27
    DMF 5846.74
    toluene 1931.92
    isobutanol 521.38
    1,4-dioxane 1352.0
    methyl acetate 2267.06
    THF 2137.71
    2-butanone 2532.38
    n-pentanol 383.7
    sec-butanol 624.25
    n-hexane 84.74
    ethylene glycol 86.93
    NMP 5651.0
    cyclohexane 253.38
    DMSO 2536.8
    n-butyl acetate 1183.31
    n-octanol 157.21
    chloroform 5878.09
    n-propyl acetate 1110.45
    acetic acid 1195.39
    dichloromethane 7309.02
    cyclohexanone 3841.17
    propylene glycol 128.78
    isopropyl acetate 1325.76
    DMAc 5219.24
    2-ethoxyethanol 718.07
    isopentanol 577.62
    n-heptane 29.55
    ethyl formate 1045.46
    1,2-dichloroethane 6283.4
    n-hexanol 321.59
    2-methoxyethanol 1223.64
    isobutyl acetate 565.87
    tetrachloromethane 607.6
    n-pentyl acetate 673.82
    transcutol 1631.25
    n-heptanol 172.24
    ethylbenzene 629.11
    MIBK 978.44
    2-propoxyethanol 724.89
    tert-butanol 553.22
    MTBE 983.48
    2-butoxyethanol 443.76
    propionic acid 1025.83
    o-xylene 862.29
    formic acid 347.56
    diethyl ether 1170.2
    m-xylene 802.02
    p-xylene 850.64
    chlorobenzene 2751.06
    dimethyl carbonate 1087.04
    n-octane 18.93
    formamide 1194.09
    cyclopentanone 4008.3
    2-pentanone 2002.38
    anisole 1217.73
    cyclopentyl methyl ether 1686.62
    gamma-butyrolactone 4103.35
    1-methoxy-2-propanol 908.22
    pyridine 4251.87
    3-pentanone 1940.84
    furfural 3343.43
    n-dodecane 15.37
    diethylene glycol 404.37
    diisopropyl ether 311.32
    tert-amyl alcohol 671.7
    acetylacetone 2319.32
    n-hexadecane 18.78
    acetophenone 1424.48
    methyl propionate 2305.96
    isopentyl acetate 987.7
    trichloroethylene 10335.67
    n-nonanol 151.28
    cyclohexanol 946.89
    benzyl alcohol 849.35
    2-ethylhexanol 246.69
    isooctanol 154.75
    dipropyl ether 327.49
    1,2-dichlorobenzene 2397.95
    ethyl lactate 392.73
    propylene carbonate 2110.37
    n-methylformamide 2028.97
    2-pentanol 470.8
    n-pentane 81.15
    1-propoxy-2-propanol 490.56
    1-methoxy-2-propyl acetate 999.12
    2-(2-methoxypropoxy) propanol 418.79
    mesitylene 394.37
    ε-caprolactone 2883.35
    p-cymene 221.16
    epichlorohydrin 5176.92
    1,1,1-trichloroethane 4145.87
    2-aminoethanol 272.48
    morpholine-4-carbaldehyde 2835.69
    sulfolane 4174.78
    2,2,4-trimethylpentane 54.75
    2-methyltetrahydrofuran 2027.74
    n-hexyl acetate 737.84
    isooctane 31.6
    2-(2-butoxyethoxy)ethanol 521.81
    sec-butyl acetate 783.92
    tert-butyl acetate 1149.29
    decalin 120.7
    glycerin 190.67
    diglyme 1285.51
    acrylic acid 986.86
    isopropyl myristate 226.93
    n-butyric acid 1436.68
    acetyl acetate 1448.64
    di(2-ethylhexyl) phthalate 231.06
    ethyl propionate 1137.6
    nitromethane 3686.12
    1,2-diethoxyethane 842.21
    benzonitrile 1519.31
    trioctyl phosphate 147.57
    1-bromopropane 2541.44
    gamma-valerolactone 3963.96
    n-decanol 106.17
    triethyl phosphate 331.44
    4-methyl-2-pentanol 238.92
    propionitrile 1806.42
    vinylene carbonate 1931.13
    1,1,2-trichlorotrifluoroethane 2272.19
    DMS 1012.66
    cumene 329.19
    2-octanol 135.98
    2-hexanone 988.67
    octyl acetate 309.59
    limonene 353.54
    1,2-dimethoxyethane 1472.71
    ethyl orthosilicate 293.58
    tributyl phosphate 234.46
    diacetone alcohol 951.41
    N,N-dimethylaniline 767.37
    acrylonitrile 2595.92
    aniline 1718.48
    1,3-propanediol 443.36
    bromobenzene 3169.95
    dibromomethane 4454.53
    1,1,2,2-tetrachloroethane 7655.51
    2-methyl-cyclohexyl acetate 510.18
    tetrabutyl urea 325.12
    diisobutyl methanol 148.42
    2-phenylethanol 602.8
    styrene 1021.32
    dioctyl adipate 347.06
    dimethyl sulfate 1628.84
    ethyl butyrate 696.5
    methyl lactate 698.38
    butyl lactate 421.31
    diethyl carbonate 494.77
    propanediol butyl ether 298.03
    triethyl orthoformate 401.84
    p-tert-butyltoluene 201.18
    methyl 4-tert-butylbenzoate 605.52
    morpholine 2266.15
    tert-butylamine 371.92
    n-dodecanol 80.81
    dimethoxymethane 1943.41
    ethylene carbonate 1594.46
    cyrene 573.62
    2-ethoxyethyl acetate 923.36
    2-ethylhexyl acetate 783.23
    1,2,4-trichlorobenzene 2714.72
    4-methylpyridine 4446.66
    dibutyl ether 321.44
    2,6-dimethyl-4-heptanol 148.42
    DEF 3345.35
    dimethyl isosorbide 893.83
    tetrachloroethylene 4313.68
    eugenol 535.96
    triacetin 656.41
    span 80 331.18
    1,4-butanediol 164.64
    1,1-dichloroethane 4889.48
    2-methyl-1-pentanol 467.03
    methyl formate 1302.62
    2-methyl-1-butanol 660.68
    n-decane 24.78
    butyronitrile 1434.21
    3,7-dimethyl-1-octanol 199.04
    1-chlorooctane 191.98
    1-chlorotetradecane 71.79
    n-nonane 22.04
    undecane 18.51
    tert-butylcyclohexane 76.91
    cyclooctane 62.68
    cyclopentanol 882.42
    tetrahydropyran 1824.11
    tert-amyl methyl ether 893.93
    2,5,8-trioxanonane 734.46
    1-hexene 400.85
    2-isopropoxyethanol 500.26
    2,2,2-trifluoroethanol 558.47
    methyl butyrate 1624.14

    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

Botanical

Name CAS Botanical Proportion
Cassie absolute (blossom) 8023-82-3 Acacia farnesiana (L.) Willd., fam. Mimosaceae (Leguminosae) 0.01%
Linden blossom flower Tilia cordata Mill. (Tilia glabra Vent.), fam. Tiliaceae 0.25%
Osmanthus concrete 1 (China) 68917-05-5 Osmanthus fragrans, variety Thunbergii (Mak.), fam. Oleaceae 1.6%
Osmanthus concrete 2 (China) 68917-05-5 Osmanthus fragrans, variety Latifolius Mak., fam. Oleaceae 4.2%
Osmanthus concrete 3 (China) 68917-05-5 Osmanthus fragrans, variety Aurantiacus (Mak.), fam. Oleaceae 0.6%
Osmanthus concentrate 1 (Sukhumi-Abkhasia) 68917-05-5 Osmanthus fragrans (Thunb.) Lour., fam. Oleaceae 0.68%
Osmanthus concentrate 2 (Sukhumi-Abkhasia) 68917-05-5 Osmanthus fragrans (Thunb.) Lour., fam. Oleaceae 0.39%
Rose (Bulgaria) 2 8007-01-0 Rosa damascena Mill., fam. Rosaceae 0.2%
Mustard seed (China) 1 8007-40-7 Brassica juncea (L.) Czern. et Coss., fam. Brassicaceae (Crucifereae) 0.53%
Lemon leaf (petitgrain) (Russia) 84929-31-7 Citrus limon (L.) Burm. f., fam. Rutaceae 0.08%
Meyer lemon leaf (Russia) 1 Citrus limon x Citrus sinensis, fam. Rutaceae 0.09%
Meyer lemon leaf (Russia) 2 Citrus limon x Citrus sinensis, fam. Rutaceae 0.54%
Laurel leaf (Russia) 8006-78-8 Laurus nobilis L., fam. Lauraceae 0.22%
Ylang Ylang (Thailand) 8006-81-3 Cananga odorata (Lamk.) Hook. f. et Thomson forma genuina, fam. Annonaceae 0.55%
Jasmine (China) 1 8022-96-6 Jasminum officinale var. grandiflorum L., fam. Oleaceae 4.76%
Rue (China) 2 8014-29-7 Ruta graveolens L., fam. Rutaceae 0.25%