2-Methyl-2-butenol

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    4675-87-0

    Molecular formula
    C5H10O

    SMILES
    CC=C(C)CO

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Retention indicies (RI)

    • Carbowax: 1253.0

  • Odor profile

    Fruity 82.36%
    Green 77.53%
    Herbal 62.7%
    Ethereal 51.98%
    Oily 49.71%
    Earthy 47.93%
    Alcoholic 47.85%
    Fermented 46.45%
    Pungent 45.14%
    Winey 43.33%

    Scent© AI

  • Properties

    XLogP3-AA
    1.0

    Molecular weight
    86.13 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point est.
    131°C

    Flash point est.
    44.08 ˚C

    Solubility expt.

    • Slightly soluble
    • Soluble (in ethanol)

  • Synonyms

    • 2-methylbut-2-en-1-ol
    • 2-Buten-1-ol, 2-methyl-
    • 4675-87-0
    • 2-Methyl-2-butenol
    • DTXSID2063553
    • NS00082636

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 617.56
    methanol 560.11
    isopropanol 426.62
    water 13.61
    ethyl acetate 228.57
    n-propanol 550.99
    acetone 141.45
    n-butanol 586.97
    acetonitrile 239.85
    DMF 164.5
    toluene 36.91
    isobutanol 366.36
    1,4-dioxane 441.6
    methyl acetate 215.29
    THF 471.56
    2-butanone 207.94
    n-pentanol 309.02
    sec-butanol 467.4
    n-hexane 45.12
    ethylene glycol 135.51
    NMP 177.91
    cyclohexane 47.3
    DMSO 200.43
    n-butyl acetate 236.93
    n-octanol 146.03
    chloroform 459.44
    n-propyl acetate 134.32
    acetic acid 607.84
    dichloromethane 295.78
    cyclohexanone 231.44
    propylene glycol 180.52
    isopropyl acetate 113.02
    DMAc 144.97
    2-ethoxyethanol 299.34
    isopentanol 378.85
    n-heptane 61.76
    ethyl formate 159.17
    1,2-dichloroethane 153.2
    n-hexanol 379.82
    2-methoxyethanol 480.54
    isobutyl acetate 73.91
    tetrachloromethane 150.8
    n-pentyl acetate 132.71
    transcutol 775.26
    n-heptanol 192.43
    ethylbenzene 26.28
    MIBK 93.52
    2-propoxyethanol 377.92
    tert-butanol 496.84
    MTBE 255.91
    2-butoxyethanol 274.0
    propionic acid 410.72
    o-xylene 36.45
    formic acid 265.88
    diethyl ether 278.98
    m-xylene 32.12
    p-xylene 37.71
    chlorobenzene 70.31
    dimethyl carbonate 30.58
    n-octane 19.76
    formamide 257.75
    cyclopentanone 230.96
    2-pentanone 169.77
    anisole 81.13
    cyclopentyl methyl ether 185.36
    gamma-butyrolactone 282.31
    1-methoxy-2-propanol 306.98
    pyridine 220.52
    3-pentanone 116.51
    furfural 252.5
    n-dodecane 11.55
    diethylene glycol 259.47
    diisopropyl ether 72.14
    tert-amyl alcohol 471.76
    acetylacetone 105.86
    n-hexadecane 12.0
    acetophenone 66.43
    methyl propionate 124.75
    isopentyl acetate 165.44
    trichloroethylene 289.25
    n-nonanol 128.22
    cyclohexanol 281.35
    benzyl alcohol 91.3
    2-ethylhexanol 218.23
    isooctanol 151.37
    dipropyl ether 189.79
    1,2-dichlorobenzene 65.83
    ethyl lactate 68.75
    propylene carbonate 158.04
    n-methylformamide 182.68
    2-pentanol 349.92
    n-pentane 55.88
    1-propoxy-2-propanol 319.96
    1-methoxy-2-propyl acetate 141.17
    2-(2-methoxypropoxy) propanol 175.37
    mesitylene 24.08
    ε-caprolactone 250.83
    p-cymene 40.67
    epichlorohydrin 267.18
    1,1,1-trichloroethane 198.76
    2-aminoethanol 321.67
    morpholine-4-carbaldehyde 252.19
    sulfolane 224.31
    2,2,4-trimethylpentane 32.35
    2-methyltetrahydrofuran 411.76
    n-hexyl acetate 154.22
    isooctane 23.96
    2-(2-butoxyethoxy)ethanol 275.26
    sec-butyl acetate 86.23
    tert-butyl acetate 124.9
    decalin 20.13
    glycerin 229.27
    diglyme 418.88
    acrylic acid 283.41
    isopropyl myristate 58.98
    n-butyric acid 536.38
    acetyl acetate 97.09
    di(2-ethylhexyl) phthalate 54.81
    ethyl propionate 96.75
    nitromethane 367.19
    1,2-diethoxyethane 247.31
    benzonitrile 105.83
    trioctyl phosphate 47.57
    1-bromopropane 141.44
    gamma-valerolactone 303.19
    n-decanol 88.77
    triethyl phosphate 60.29
    4-methyl-2-pentanol 155.82
    propionitrile 227.16
    vinylene carbonate 137.36
    1,1,2-trichlorotrifluoroethane 258.54
    DMS 65.47
    cumene 29.56
    2-octanol 115.78
    2-hexanone 132.57
    octyl acetate 79.09
    limonene 75.39
    1,2-dimethoxyethane 295.58
    ethyl orthosilicate 67.71
    tributyl phosphate 53.68
    diacetone alcohol 184.04
    N,N-dimethylaniline 56.1
    acrylonitrile 205.32
    aniline 121.55
    1,3-propanediol 438.02
    bromobenzene 52.9
    dibromomethane 211.94
    1,1,2,2-tetrachloroethane 247.46
    2-methyl-cyclohexyl acetate 102.95
    tetrabutyl urea 58.05
    diisobutyl methanol 101.55
    2-phenylethanol 119.93
    styrene 31.38
    dioctyl adipate 77.44
    dimethyl sulfate 46.39
    ethyl butyrate 163.23
    methyl lactate 78.57
    butyl lactate 112.83
    diethyl carbonate 87.55
    propanediol butyl ether 198.75
    triethyl orthoformate 115.09
    p-tert-butyltoluene 40.77
    methyl 4-tert-butylbenzoate 97.99
    morpholine 547.99
    tert-butylamine 334.59
    n-dodecanol 64.88
    dimethoxymethane 114.37
    ethylene carbonate 123.95
    cyrene 111.06
    2-ethoxyethyl acetate 140.81
    2-ethylhexyl acetate 129.22
    1,2,4-trichlorobenzene 81.51
    4-methylpyridine 147.32
    dibutyl ether 131.11
    2,6-dimethyl-4-heptanol 101.55
    DEF 164.01
    dimethyl isosorbide 213.74
    tetrachloroethylene 213.34
    eugenol 116.97
    triacetin 109.27
    span 80 183.47
    1,4-butanediol 152.13
    1,1-dichloroethane 189.84
    2-methyl-1-pentanol 257.17
    methyl formate 97.84
    2-methyl-1-butanol 405.04
    n-decane 21.67
    butyronitrile 266.69
    3,7-dimethyl-1-octanol 131.74
    1-chlorooctane 66.08
    1-chlorotetradecane 24.65
    n-nonane 22.33
    undecane 15.03
    tert-butylcyclohexane 25.56
    cyclooctane 17.1
    cyclopentanol 303.7
    tetrahydropyran 407.17
    tert-amyl methyl ether 186.06
    2,5,8-trioxanonane 270.68
    1-hexene 113.8
    2-isopropoxyethanol 199.55
    2,2,2-trifluoroethanol 179.19
    methyl butyrate 141.21

    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
Narcissus tazetta (var. chinensis) 8023-75-4 Narcissus tazetta L., var. chinensis, fam. Amaryllidaceae 0.09%
Narcissus tazetta (var. chinensis) headspace 8023-75-4 Narcissus tazetta L., var. chinensis, fam. Amarillidaceae 0.16%
Roman chamomile 8015-92-7 Anthemis nobilis L., fam. Asteraceae (Compositae) 8.4%
Mullilam leaf (India) Zanthoxylum rhetsa D.C. syn. Z. limonella (Dennst.) Alston, fam. Rutaceae 0.01%
Bacuri fruit (Brazil) Platonia insignis M., fam. Guttiferae 0.05%
Genipap fruit (Brazil) Genipa americana L., fam. Rubiaceae 0.1%
Carob bean extract 1 9000-40-2 Ceratonia siliqua L., fam. Leguminoseae 0.01%