Isobutyl acrylate

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  • Identifiers

    CAS number
    106-63-8

    Molecular formula
    C7H12O2

    SMILES
    CC(C)COC(=O)C=C

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Fruity 91.09%
    Sweet 53.56%
    Apple 50.45%
    Ethereal 49.99%
    Pungent 44.68%
    Pineapple 43.81%
    Rummy 43.56%
    Sharp 42.27%
    Caramellic 42.1%
    Winey 39.13%

     

    Flavor
    Fruity 57.66%
    Sweet 35.77%
    Berry 26.38%
    Tropical 24.75%
    Pungent 24.46%
    Caramel 23.78%
    Cheese 23.41%
    Butter 21.12%
    Strawberry 20.76%
    Sharp 20.71%

     

    Odor impact est.
    High

    Odor threshold

    • Odor Threshold Low: 0.002 [mmHg]
    • 2.00X10-3 ppm (odor detection in air, purity not specified)
    • 9.00X10-3 ppm (odor recognition in air, purity not specified)

  • Properties

    XLogP3-AA
    2.2

    pKa est.
    7.85 (neutral)

    Molecular weight
    128.17 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Melting point expt.

    • -78 °F (USCG, 1999)
    • -61 °C

    Boiling point

    • 270 °F at 760 mmHg (NTP, 1992)
    • 132 °C
    • Boiling point: 61-63 °C (51 mm Hg)

    Flash point

    • 30.46 ˚C est.
    • 86 °F (NTP, 1992)
    • 86 °F (30 °C) (open cup)

    Solubility expt.

    • Slightly soluble (NTP, 1992)
    • Soluble in ethanol, ether and methanol
    • In water, 2,000 mg/L at 25 °C

  • Synonyms

    • ISOBUTYL ACRYLATE
    • 106-63-8
    • Isobutyl 2-propenoate
    • Isobutyl propenoate
    • 2-Propenoic acid, 2-methylpropyl ester
    • Acrylic acid, isobutyl ester
    • 2-Methylpropyl acrylate
    • 2-methylpropyl prop-2-enoate
    • NSC 20949
    • Isobutylester kyseliny akrylove
    • Propenoic acid, isobutyl ester
    • CCRIS 4828
    • HSDB 610
    • 2-Propenoic acid isobutyl ester
    • iso-butyl acrylate
    • EINECS 203-417-8
    • Isobutyl acrylate, inhibited
    • UN2527
    • Isobutylester kyseliny akrylove [Czech]
    • BRN 1749388
    • DTXSID1021873
    • UNII-U02509V73F
    • AI3-15696
    • z-Methylpropyl acrylate
    • NSC-20949
    • U02509V73F
    • Acrylic Acid Isobutyl Ester
    • UN 2527 (Salt/Mix)
    • DTXCID001873
    • ISOBUTYL ACRYLATE [HSDB]
    • EC 203-417-8
    • 4-02-00-01465 (Beilstein Handbook Reference)
    • isobutylacrylate
    • Isobutylpropenoate
    • Isobutyl 2propenoate
    • MFCD00042865
    • 2Methylpropyl acrylate
    • ISOBUTYL PROPENATE
    • SCHEMBL16448
    • ISOBUTYL-2-PROPENOATE
    • 2Propenoic acid isobutyl ester
    • CHEMBL1606107
    • NSC20949
    • ISOBUTYL ACRYLATE, STABILIZED
    • Tox21_200184
    • WLN: 1Y1 & 1OV1U1
    • 2Propenoic acid, 2methylpropyl ester
    • STL280530
    • AKOS015893014
    • NCGC00091805-01
    • NCGC00091805-02
    • NCGC00257738-01
    • CAS-106-63-8
    • LS-13311
    • Isobutyl Acrylate, (stabilized with MEHQ)
    • A0747
    • NS00005811
    • Q343017
    • Isobutyl acrylate, inhibited [UN2527] [Flammable liquid]
    • Isobutyl acrylate, >=99%, contains 10-20 ppm monomethyl ether hydroquinone as inhibitor
    • 203-417-8

  • Applications

    Isobutyl acrylate (CAS 106-63-8) is a reactive acrylate monomer used to synthesize acrylic polymers and copolymers for a range of industrial applications. In coatings and paints, it participates in waterborne and solvent-based acrylic emulsions to improve flexibility and adhesion. In adhesives and sealants, it contributes to tack, weather resistance, and performance of formulations such as pressure-sensitive adhesives and sealants. In inks and printing formulations, it serves as a monomer in acrylic resins to enhance clarity and flexibility of printed films. In polymer and plastics production, it acts as a comonomer to tailor glass transition temperature and hardness in packaging, coatings, and related materials.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 180.24
    methanol 196.4
    isopropanol 160.43
    water 0.64
    ethyl acetate 98.3
    n-propanol 147.44
    acetone 151.36
    n-butanol 162.41
    acetonitrile 106.11
    DMF 228.62
    toluene 83.8
    isobutanol 137.15
    1,4-dioxane 174.87
    methyl acetate 120.49
    THF 273.58
    2-butanone 172.52
    n-pentanol 162.55
    sec-butanol 176.55
    n-hexane 42.92
    ethylene glycol 41.48
    NMP 239.48
    cyclohexane 39.99
    DMSO 180.45
    n-butyl acetate 239.96
    n-octanol 143.11
    chloroform 345.82
    n-propyl acetate 112.98
    acetic acid 151.4
    dichloromethane 299.75
    cyclohexanone 223.95
    propylene glycol 72.09
    isopropyl acetate 78.66
    DMAc 246.47
    2-ethoxyethanol 151.72
    isopentanol 167.41
    n-heptane 40.29
    ethyl formate 118.51
    1,2-dichloroethane 169.76
    n-hexanol 235.32
    2-methoxyethanol 181.92
    isobutyl acetate 90.9
    tetrachloromethane 53.1
    n-pentyl acetate 123.46
    transcutol 355.1
    n-heptanol 118.08
    ethylbenzene 94.1
    MIBK 100.63
    2-propoxyethanol 219.58
    tert-butanol 215.77
    MTBE 162.82
    2-butoxyethanol 150.69
    propionic acid 116.07
    o-xylene 87.26
    formic acid 46.36
    diethyl ether 97.85
    m-xylene 77.89
    p-xylene 124.95
    chlorobenzene 131.37
    dimethyl carbonate 38.08
    n-octane 21.58
    formamide 51.22
    cyclopentanone 231.28
    2-pentanone 127.16
    anisole 145.14
    cyclopentyl methyl ether 125.62
    gamma-butyrolactone 213.59
    1-methoxy-2-propanol 151.21
    pyridine 185.22
    3-pentanone 94.02
    furfural 268.76
    n-dodecane 23.23
    diethylene glycol 139.64
    diisopropyl ether 44.8
    tert-amyl alcohol 229.47
    acetylacetone 118.9
    n-hexadecane 25.02
    acetophenone 158.88
    methyl propionate 85.0
    isopentyl acetate 228.41
    trichloroethylene 338.36
    n-nonanol 121.81
    cyclohexanol 142.58
    benzyl alcohol 128.85
    2-ethylhexanol 180.01
    isooctanol 98.64
    dipropyl ether 112.85
    1,2-dichlorobenzene 133.07
    ethyl lactate 76.32
    propylene carbonate 175.89
    n-methylformamide 100.67
    2-pentanol 128.35
    n-pentane 32.64
    1-propoxy-2-propanol 198.16
    1-methoxy-2-propyl acetate 150.24
    2-(2-methoxypropoxy) propanol 196.13
    mesitylene 58.17
    ε-caprolactone 209.5
    p-cymene 92.69
    epichlorohydrin 255.62
    1,1,1-trichloroethane 180.08
    2-aminoethanol 81.12
    morpholine-4-carbaldehyde 223.25
    sulfolane 257.92
    2,2,4-trimethylpentane 29.42
    2-methyltetrahydrofuran 240.19
    n-hexyl acetate 189.22
    isooctane 21.46
    2-(2-butoxyethoxy)ethanol 205.85
    sec-butyl acetate 89.56
    tert-butyl acetate 103.19
    decalin 39.13
    glycerin 81.37
    diglyme 301.69
    acrylic acid 103.83
    isopropyl myristate 92.1
    n-butyric acid 164.32
    acetyl acetate 68.42
    di(2-ethylhexyl) phthalate 105.63
    ethyl propionate 85.91
    nitromethane 164.67
    1,2-diethoxyethane 155.63
    benzonitrile 173.22
    trioctyl phosphate 81.8
    1-bromopropane 139.05
    gamma-valerolactone 264.43
    n-decanol 96.76
    triethyl phosphate 80.54
    4-methyl-2-pentanol 94.19
    propionitrile 113.16
    vinylene carbonate 166.36
    1,1,2-trichlorotrifluoroethane 195.49
    DMS 101.13
    cumene 79.48
    2-octanol 96.62
    2-hexanone 154.23
    octyl acetate 123.11
    limonene 131.47
    1,2-dimethoxyethane 257.9
    ethyl orthosilicate 77.79
    tributyl phosphate 94.76
    diacetone alcohol 142.72
    N,N-dimethylaniline 122.91
    acrylonitrile 132.7
    aniline 97.93
    1,3-propanediol 117.57
    bromobenzene 133.78
    dibromomethane 219.79
    1,1,2,2-tetrachloroethane 290.61
    2-methyl-cyclohexyl acetate 159.16
    tetrabutyl urea 122.51
    diisobutyl methanol 98.86
    2-phenylethanol 158.15
    styrene 104.49
    dioctyl adipate 141.26
    dimethyl sulfate 63.22
    ethyl butyrate 151.34
    methyl lactate 67.66
    butyl lactate 120.09
    diethyl carbonate 106.68
    propanediol butyl ether 166.33
    triethyl orthoformate 101.3
    p-tert-butyltoluene 86.25
    methyl 4-tert-butylbenzoate 153.74
    morpholine 203.38
    tert-butylamine 163.09
    n-dodecanol 79.79
    dimethoxymethane 105.17
    ethylene carbonate 119.97
    cyrene 150.89
    2-ethoxyethyl acetate 129.32
    2-ethylhexyl acetate 188.74
    1,2,4-trichlorobenzene 162.55
    4-methylpyridine 212.58
    dibutyl ether 119.98
    2,6-dimethyl-4-heptanol 98.86
    DEF 143.98
    dimethyl isosorbide 260.95
    tetrachloroethylene 172.97
    eugenol 161.43
    triacetin 145.7
    span 80 186.64
    1,4-butanediol 78.12
    1,1-dichloroethane 189.97
    2-methyl-1-pentanol 178.07
    methyl formate 83.15
    2-methyl-1-butanol 156.71
    n-decane 32.13
    butyronitrile 159.06
    3,7-dimethyl-1-octanol 149.54
    1-chlorooctane 95.26
    1-chlorotetradecane 50.24
    n-nonane 30.76
    undecane 26.58
    tert-butylcyclohexane 42.96
    cyclooctane 17.9
    cyclopentanol 146.47
    tetrahydropyran 186.73
    tert-amyl methyl ether 147.44
    2,5,8-trioxanonane 245.68
    1-hexene 117.18
    2-isopropoxyethanol 127.01
    2,2,2-trifluoroethanol 44.89
    methyl butyrate 141.81

    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