Butane, 2-ethoxy-2-methyl-

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  • Identifiers

    CAS number
    919-94-8

    Molecular formula
    C7H16O

    SMILES
    CCC(C)(C)OCC

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Health Hazard
    Health

  • Odor profile

    Fragrance
    Ethereal 73.34%
    Fresh 55.16%
    Camphoreous 51.75%
    Fruity 49.53%
    Mint 49.51%
    Fermented 47.62%
    Solvent 43.1%
    Alcoholic 42.46%
    Green 32.61%
    Pungent 32.29%

     

    Flavor
    Pungent 38.54%
    Green 38.36%
    Ethereal 31.15%
    Earthy 29.95%
    Fruity 23.04%
    Sweet 22.6%
    Ether 20.33%
    Black currant 20.14%
    Catty 19.95%
    Solvent 19.9%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.0

    pKa est.
    9.29 (weak base)

    Molecular weight
    116.2 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    102°C

    Flash point

    • -7.31 ˚C est.

  • Synonyms

    • tert-Amyl Ethyl Ether
    • 2-Ethoxy-2-methylbutane
    • 919-94-8
    • Ethyl tert-pentyl ether
    • Butane, 2-ethoxy-2-methyl-
    • Ethyl tert-amyl ether
    • Ether, ethyl tert-pentyl
    • Ethyl 1,1-dimethylpropyl ether
    • BRN 1731673
    • 529VD83WPK
    • DTXSID7061279
    • EC 618-804-0
    • 3-01-00-01626 (Beilstein Handbook Reference)
    • RefChem:570758
    • DTXCID2048741
    • 618-804-0
    • 1,1-Dimethylpropyl Ethyl Ether
    • tert-Amyl-ethyl ether
    • 2-ETHOXY-2-METHYL-BUTANE
    • MFCD01727266
    • Trimethylather
    • 2-Ethyl-2-ethoxypropane
    • 2-Ethoxy-2-methylbutane #
    • UNII-529VD83WPK
    • SCHEMBL133652
    • SCHEMBL208586
    • SCHEMBL1134050
    • SCHEMBL3295226
    • MSK168990
    • AKOS015838721
    • BS-29651
    • NS00006706
    • D78478
    • Q28941824
    • 919-94-8

  • Applications

    Butane, 2-ethoxy-2-methyl-, CAS 919-94-8, is used primarily as a fuel oxygenate additive in gasoline to raise octane and improve combustion, with MTBE replacement in some markets; it also serves as a specialty solvent in industrial manufacturing for coatings, inks, and adhesives, offering good solvency with moderate volatility; it is used as a cleaning and degreasing solvent in maintenance and electronics cleaning formulations; it can function as an intermediate in organic synthesis for the production of other specialty chemicals; use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1217.32
    methanol 1261.45
    isopropanol 1118.4
    water 6.87
    ethyl acetate 786.97
    n-propanol 1227.36
    acetone 555.0
    n-butanol 1278.2
    acetonitrile 562.01
    DMF 538.48
    toluene 630.3
    isobutanol 1001.09
    1,4-dioxane 1335.27
    methyl acetate 675.73
    THF 1424.2
    2-butanone 789.08
    n-pentanol 816.39
    sec-butanol 1371.48
    n-hexane 1121.02
    ethylene glycol 240.54
    NMP 800.87
    cyclohexane 997.27
    DMSO 456.84
    n-butyl acetate 787.67
    n-octanol 797.52
    chloroform 2318.53
    n-propyl acetate 438.73
    acetic acid 561.39
    dichloromethane 1570.78
    cyclohexanone 1199.92
    propylene glycol 432.61
    isopropyl acetate 535.75
    DMAc 697.76
    2-ethoxyethanol 708.13
    isopentanol 1024.29
    n-heptane 893.73
    ethyl formate 403.03
    1,2-dichloroethane 842.67
    n-hexanol 1596.72
    2-methoxyethanol 1040.63
    isobutyl acetate 328.78
    tetrachloromethane 903.14
    n-pentyl acetate 595.76
    transcutol 1594.9
    n-heptanol 708.99
    ethylbenzene 400.08
    MIBK 439.64
    2-propoxyethanol 1308.06
    tert-butanol 1401.55
    MTBE 1298.43
    2-butoxyethanol 699.63
    propionic acid 685.64
    o-xylene 508.89
    formic acid 206.3
    diethyl ether 1362.72
    m-xylene 438.63
    p-xylene 486.46
    chlorobenzene 593.84
    dimethyl carbonate 148.66
    n-octane 294.98
    formamide 173.39
    cyclopentanone 898.92
    2-pentanone 659.2
    anisole 507.73
    cyclopentyl methyl ether 1115.69
    gamma-butyrolactone 838.67
    1-methoxy-2-propanol 874.59
    pyridine 761.31
    3-pentanone 642.27
    furfural 645.28
    n-dodecane 181.26
    diethylene glycol 707.11
    diisopropyl ether 544.64
    tert-amyl alcohol 1544.89
    acetylacetone 454.19
    n-hexadecane 194.5
    acetophenone 382.53
    methyl propionate 552.64
    isopentyl acetate 673.41
    trichloroethylene 1228.6
    n-nonanol 670.25
    cyclohexanol 1361.25
    benzyl alcohol 425.26
    2-ethylhexanol 1052.63
    isooctanol 547.53
    dipropyl ether 1028.74
    1,2-dichlorobenzene 571.91
    ethyl lactate 252.61
    propylene carbonate 515.91
    n-methylformamide 345.67
    2-pentanol 1062.06
    n-pentane 855.14
    1-propoxy-2-propanol 1066.54
    1-methoxy-2-propyl acetate 580.87
    2-(2-methoxypropoxy) propanol 565.38
    mesitylene 309.47
    ε-caprolactone 1034.99
    p-cymene 379.61
    epichlorohydrin 910.96
    1,1,1-trichloroethane 1263.26
    2-aminoethanol 535.48
    morpholine-4-carbaldehyde 839.39
    sulfolane 836.53
    2,2,4-trimethylpentane 388.87
    2-methyltetrahydrofuran 1642.5
    n-hexyl acetate 919.8
    isooctane 243.77
    2-(2-butoxyethoxy)ethanol 728.89
    sec-butyl acetate 403.68
    tert-butyl acetate 587.8
    decalin 409.27
    glycerin 466.12
    diglyme 1067.66
    acrylic acid 444.56
    isopropyl myristate 380.85
    n-butyric acid 861.93
    acetyl acetate 396.42
    di(2-ethylhexyl) phthalate 270.06
    ethyl propionate 447.35
    nitromethane 481.12
    1,2-diethoxyethane 768.33
    benzonitrile 478.17
    trioctyl phosphate 240.54
    1-bromopropane 1144.71
    gamma-valerolactone 974.99
    n-decanol 481.45
    triethyl phosphate 270.13
    4-methyl-2-pentanol 581.62
    propionitrile 730.8
    vinylene carbonate 432.89
    1,1,2-trichlorotrifluoroethane 765.19
    DMS 354.99
    cumene 337.05
    2-octanol 584.42
    2-hexanone 542.86
    octyl acetate 448.18
    limonene 694.92
    1,2-dimethoxyethane 1034.43
    ethyl orthosilicate 310.05
    tributyl phosphate 283.05
    diacetone alcohol 584.11
    N,N-dimethylaniline 398.13
    acrylonitrile 570.56
    aniline 629.81
    1,3-propanediol 646.96
    bromobenzene 652.03
    dibromomethane 1417.14
    1,1,2,2-tetrachloroethane 1316.01
    2-methyl-cyclohexyl acetate 502.27
    tetrabutyl urea 307.76
    diisobutyl methanol 497.25
    2-phenylethanol 569.93
    styrene 419.05
    dioctyl adipate 383.97
    dimethyl sulfate 210.64
    ethyl butyrate 524.55
    methyl lactate 280.64
    butyl lactate 406.72
    diethyl carbonate 306.02
    propanediol butyl ether 588.31
    triethyl orthoformate 441.42
    p-tert-butyltoluene 385.27
    methyl 4-tert-butylbenzoate 465.45
    morpholine 1419.87
    tert-butylamine 1220.16
    n-dodecanol 375.84
    dimethoxymethane 477.59
    ethylene carbonate 419.35
    cyrene 365.17
    2-ethoxyethyl acetate 544.54
    2-ethylhexyl acetate 629.78
    1,2,4-trichlorobenzene 669.76
    4-methylpyridine 843.23
    dibutyl ether 861.59
    2,6-dimethyl-4-heptanol 497.25
    DEF 734.23
    dimethyl isosorbide 690.85
    tetrachloroethylene 1010.74
    eugenol 386.54
    triacetin 524.6
    span 80 624.54
    1,4-butanediol 329.22
    1,1-dichloroethane 1169.57
    2-methyl-1-pentanol 779.31
    methyl formate 227.07
    2-methyl-1-butanol 1139.11
    n-decane 320.92
    butyronitrile 776.7
    3,7-dimethyl-1-octanol 737.27
    1-chlorooctane 641.96
    1-chlorotetradecane 273.43
    n-nonane 380.23
    undecane 228.17
    tert-butylcyclohexane 465.37
    cyclooctane 407.9
    cyclopentanol 1122.76
    tetrahydropyran 1715.49
    tert-amyl methyl ether 1178.17
    2,5,8-trioxanonane 685.76
    1-hexene 1270.3
    2-isopropoxyethanol 604.54
    2,2,2-trifluoroethanol 215.17
    methyl butyrate 525.63

    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