Diamyl phthalate

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  • Identifiers

    CAS number
    131-18-0

    Molecular formula
    C18H26O4

    SMILES
    CCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCC

    Safety labels

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Herbal 60.54%
    Floral 59.27%
    Balsamic 57.97%
    Fruity 43.03%
    Sweet 42.18%
    Green 40.65%
    Winey 30.73%
    Oily 29.6%
    Odorless 28.2%
    Jasmin 27.88%

     

    Flavor
    Herbal 34.37%
    Balsam 33.9%
    Woody 25.16%
    Floral 24.3%
    Fruity 24.11%
    Oily 23.0%
    Green 22.2%
    Sappy 22.04%
    Orchid 22.0%
    Amber 21.92%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    5.8

    pKa est.
    5.91 (weak acid)

    Molecular weight
    306.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • less than -67 °F (NTP, 1992)
    • FP: less than -55 °C

    Boiling point

    • 648 °F at 760 mmHg (NTP, 1992)
    • 342 °C

    Flash point

    • 180.12 ˚C est.
    • 357 °F (NTP, 1992)
    • 357 °F; 180 °C (Closed cup)
    • 245 dec F (118 °C) (Closed cup)

    Solubility expt.

    • less than 1 mg/mL at 68 °F (NTP, 1992)
    • Phthalate esters are soluble to various extents in many common organic solvents and oils, but have a relatively low solubility in water. /Phthalate esters/
    • Soluble in carbon tetrachloride, carbon disulfide
    • In water, 0.8 mg/L at 25 °C

  • Synonyms

    • Dipentyl phthalate
    • 131-18-0
    • DIAMYL PHTHALATE
    • Di-n-pentyl phthalate
    • Amyl phthalate
    • Amoil
    • di-n-Amyl phthalate
    • 1,2-Benzenedicarboxylic acid, dipentyl ester
    • Di-n-pentylphthalate
    • Phthalic acid, dipentyl ester
    • dipentyl benzene-1,2-dicarboxylate
    • diamylphthalate
    • Phthalic Acid Diamyl Ester
    • 1,2-Benzenedicarboxylic acid, 1,2-dipentyl ester
    • Phthalic Acid Dipentyl Ester
    • Phthalic acid, diamyl ester
    • DPNP
    • NSC 4720
    • HSDB 302
    • CHEBI:34680
    • Dipentyl 1,2-benzenedicarboxylate
    • AI3-00363 (USDA)
    • EINECS 205-017-9
    • BRN 1987323
    • DTXSID5031131
    • AI3-00363
    • 1,2-Benzenedicarboxylic acid dipentyl ester
    • 5DC92K224X
    • NSC-4720
    • MFCD00041934
    • 1,2-dipentyl benzene-1,2-dicarboxylate
    • DIAMYL PHTHALATE [HSDB]
    • DTXCID3011131
    • Phthalic acid, bis-n-pentyl ester
    • 4-09-00-03178 (Beilstein Handbook Reference)
    • dipentylphthalate
    • CAS-131-18-0
    • UNII-5DC92K224X
    • Dinpentylphthalate
    • Dinpentyl phthalate
    • 1, dipentyl ester
    • Di-N-pentyl phthalic acid
    • Epitope ID:140104
    • SCHEMBL57859
    • BIDD:ER0351
    • DI-N-PENTYL O-PHTHALATE
    • CHEMBL1503330
    • Dipentyl 1,2benzenedicarboxylate
    • NSC4720
    • DIPENTYL ESTER PHTHALIC ACID
    • Tox21_201519
    • Tox21_300304
    • AC8314
    • AKOS015888411
    • CS-W014532
    • Dipentyl phthalate, analytical standard
    • HY-W013816
    • NCGC00090765-01
    • NCGC00090765-02
    • NCGC00090765-03
    • NCGC00090765-04
    • NCGC00254010-01
    • NCGC00259069-01
    • SY026588
    • 1,2Benzenedicarboxylic acid, dipentyl ester
    • DB-042009
    • 1, 2-Benzenedicarboxylic acid dipentyl ester
    • NS00001949
    • P0291
    • 1,2-Benzenedicarboxylic acid 1,2-dipentyl ester
    • Dipentyl phthalate, Selectophore(TM), >=99.0%
    • EN300-1073404
    • Q27116218
    • F0001-0416
    • Dipentyl phthalate, certified reference material, TraceCERT(R)
    • 205-017-9

  • Applications

    Diamyl phthalate (CAS 131-18-0) is primarily used as a plasticizer for PVC and other polymers, imparting flexibility and ease of processing to films and plastic products. It is also employed as a component in coatings and paints, as well as in inks and adhesives, to improve elasticity and film formation. Its solvent and carrier properties make it a processing aid in plastic and rubber formulations, supporting formulation and dispersion of additives. In electronics and electrical insulation, it can serve as a plasticizer in insulation and encapsulation materials. It is also used in packaging films and laminates as a flexible plasticizer component for film materials.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 576.72
    methanol 701.72
    isopropanol 367.39
    water 0.57
    ethyl acetate 2327.66
    n-propanol 624.94
    acetone 2278.17
    n-butanol 578.68
    acetonitrile 1918.26
    DMF 5601.98
    toluene 1956.1
    isobutanol 471.45
    1,4-dioxane 1273.82
    methyl acetate 2152.25
    THF 2347.32
    2-butanone 2529.02
    n-pentanol 377.12
    sec-butanol 543.16
    n-hexane 93.77
    ethylene glycol 81.78
    NMP 6279.03
    cyclohexane 262.63
    DMSO 2710.03
    n-butyl acetate 1133.51
    n-octanol 143.9
    chloroform 6059.95
    n-propyl acetate 1120.51
    acetic acid 1111.78
    dichloromethane 7770.46
    cyclohexanone 3926.68
    propylene glycol 130.15
    isopropyl acetate 1397.05
    DMAc 5469.07
    2-ethoxyethanol 726.53
    isopentanol 559.95
    n-heptane 31.32
    ethyl formate 966.85
    1,2-dichloroethane 6878.01
    n-hexanol 317.24
    2-methoxyethanol 1199.76
    isobutyl acetate 586.86
    tetrachloromethane 747.32
    n-pentyl acetate 744.62
    transcutol 1891.57
    n-heptanol 161.57
    ethylbenzene 647.28
    MIBK 1010.91
    2-propoxyethanol 735.76
    tert-butanol 487.12
    MTBE 989.59
    2-butoxyethanol 459.31
    propionic acid 965.51
    o-xylene 937.1
    formic acid 329.97
    diethyl ether 1150.57
    m-xylene 844.06
    p-xylene 851.69
    chlorobenzene 2940.42
    dimethyl carbonate 1143.99
    n-octane 17.87
    formamide 1063.15
    cyclopentanone 4073.83
    2-pentanone 2022.29
    anisole 1333.87
    cyclopentyl methyl ether 1883.78
    gamma-butyrolactone 4228.82
    1-methoxy-2-propanol 870.16
    pyridine 4109.41
    3-pentanone 2084.36
    furfural 3328.57
    n-dodecane 13.49
    diethylene glycol 399.64
    diisopropyl ether 335.07
    tert-amyl alcohol 631.0
    acetylacetone 2401.56
    n-hexadecane 16.49
    acetophenone 1550.74
    methyl propionate 2305.21
    isopentyl acetate 1014.04
    trichloroethylene 10979.5
    n-nonanol 141.59
    cyclohexanol 928.32
    benzyl alcohol 848.53
    2-ethylhexanol 239.39
    isooctanol 152.3
    dipropyl ether 357.92
    1,2-dichlorobenzene 2670.51
    ethyl lactate 421.41
    propylene carbonate 2120.37
    n-methylformamide 1959.63
    2-pentanol 446.47
    n-pentane 88.3
    1-propoxy-2-propanol 516.58
    1-methoxy-2-propyl acetate 1107.05
    2-(2-methoxypropoxy) propanol 455.97
    mesitylene 406.88
    ε-caprolactone 3026.47
    p-cymene 225.33
    epichlorohydrin 5237.66
    1,1,1-trichloroethane 4450.14
    2-aminoethanol 268.93
    morpholine-4-carbaldehyde 2992.69
    sulfolane 4669.74
    2,2,4-trimethylpentane 61.98
    2-methyltetrahydrofuran 2247.29
    n-hexyl acetate 762.97
    isooctane 33.8
    2-(2-butoxyethoxy)ethanol 576.03
    sec-butyl acetate 833.7
    tert-butyl acetate 1298.66
    decalin 130.47
    glycerin 187.67
    diglyme 1374.19
    acrylic acid 929.51
    isopropyl myristate 230.27
    n-butyric acid 1399.34
    acetyl acetate 1554.18
    di(2-ethylhexyl) phthalate 246.8
    ethyl propionate 1228.14
    nitromethane 3449.44
    1,2-diethoxyethane 942.43
    benzonitrile 1461.4
    trioctyl phosphate 148.7
    1-bromopropane 2816.03
    gamma-valerolactone 4017.35
    n-decanol 97.09
    triethyl phosphate 357.09
    4-methyl-2-pentanol 247.4
    propionitrile 1572.34
    vinylene carbonate 1903.18
    1,1,2-trichlorotrifluoroethane 2534.15
    DMS 1113.03
    cumene 343.23
    2-octanol 126.08
    2-hexanone 1005.3
    octyl acetate 317.47
    limonene 375.73
    1,2-dimethoxyethane 1397.04
    ethyl orthosilicate 321.55
    tributyl phosphate 238.98
    diacetone alcohol 968.27
    N,N-dimethylaniline 859.43
    acrylonitrile 2308.83
    aniline 1840.94
    1,3-propanediol 403.76
    bromobenzene 3434.57
    dibromomethane 4811.2
    1,1,2,2-tetrachloroethane 8353.46
    2-methyl-cyclohexyl acetate 554.42
    tetrabutyl urea 336.87
    diisobutyl methanol 144.48
    2-phenylethanol 599.21
    styrene 1062.99
    dioctyl adipate 372.15
    dimethyl sulfate 1872.05
    ethyl butyrate 742.52
    methyl lactate 712.08
    butyl lactate 463.83
    diethyl carbonate 493.38
    propanediol butyl ether 307.64
    triethyl orthoformate 438.11
    p-tert-butyltoluene 206.99
    methyl 4-tert-butylbenzoate 677.97
    morpholine 2200.25
    tert-butylamine 350.05
    n-dodecanol 72.73
    dimethoxymethane 1929.12
    ethylene carbonate 1611.19
    cyrene 621.4
    2-ethoxyethyl acetate 1086.1
    2-ethylhexyl acetate 811.57
    1,2,4-trichlorobenzene 3070.05
    4-methylpyridine 4321.75
    dibutyl ether 335.0
    2,6-dimethyl-4-heptanol 144.48
    DEF 3646.95
    dimethyl isosorbide 1005.56
    tetrachloroethylene 4691.58
    eugenol 597.08
    triacetin 758.11
    span 80 346.94
    1,4-butanediol 161.0
    1,1-dichloroethane 4830.25
    2-methyl-1-pentanol 455.66
    methyl formate 1187.32
    2-methyl-1-butanol 664.92
    n-decane 22.54
    butyronitrile 1220.08
    3,7-dimethyl-1-octanol 194.7
    1-chlorooctane 193.89
    1-chlorotetradecane 69.25
    n-nonane 20.06
    undecane 16.45
    tert-butylcyclohexane 82.53
    cyclooctane 65.8
    cyclopentanol 866.09
    tetrahydropyran 1845.17
    tert-amyl methyl ether 969.13
    2,5,8-trioxanonane 809.1
    1-hexene 427.76
    2-isopropoxyethanol 505.51
    2,2,2-trifluoroethanol 543.1
    methyl butyrate 1638.6

    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