2-Butyloxirane

Overview IFRA Request a quote

  • Identifiers

    CAS number
    1436-34-6

    Molecular formula
    C6H12O

    SMILES
    CCCCC1CO1

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Green 74.75%
    Sweet 52.39%
    Fatty 49.19%
    Fresh 45.53%
    Fruity 39.26%
    Oily 36.97%
    Herbal 32.68%
    Fermented 30.98%
    Vegetable 30.62%
    Musty 29.76%

     

    Flavor
    Sweet 47.42%
    Green 46.97%
    Herbal 39.29%
    Fatty 38.16%
    Fresh 31.67%
    Oily 30.58%
    Metallic 30.26%
    Caramel 30.19%
    Fruity 29.85%
    Coconut 29.25%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    1.9

    pKa est.
    5.7 (weak acid)

    Molecular weight
    100.16 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    120°C

    Flash point

    • 19.94 ˚C est.

  • Synonyms

    • 1,2-Epoxyhexane
    • 2-Butyloxirane
    • 1436-34-6
    • DTXSID10870872
    • RefChem:411835
    • DTXCID90818555
    • 215-864-6
    • Butyloxirane
    • Oxirane, butyl-
    • 1-Hexene oxide
    • 1,2-Hexene oxide
    • 1-Hexene epoxide
    • Epoxy-n-hexane
    • HEXANE, 1,2-EPOXY-
    • Oxirane, 2-butyl-
    • 2-Butyl-oxirane
    • MFCD00005154
    • NSC 24268
    • Hexylene oxide
    • Hexene, monooxide
    • CCRIS 3750
    • EINECS 215-864-6
    • BRN 0102568
    • butyl oxirane
    • Butyl-oxirane
    • 1,2-hexeneoxide
    • Hexane,2-epoxy-
    • Hexene 1,2-oxide
    • 1,2-Hexylene Oxide
    • racemic 1,2-epoxyhexane
    • 1,2-Epoxyhexane, 97%
    • SCHEMBL49592
    • 5-17-01-00103 (Beilstein Handbook Reference)
    • SCHEMBL229385
    • SCHEMBL1148647
    • SCHEMBL1152460
    • SCHEMBL1352902
    • SCHEMBL2909803
    • SCHEMBL3668351
    • SCHEMBL7694307
    • BB_SC-05509
    • NSC24268
    • BBL011099
    • NSC-24268
    • NSC246211
    • SBB017137
    • STK802336
    • AKOS005622591
    • NSC-246211
    • PD193096
    • SY049832
    • VS-02834
    • DB-040573
    • DB-062740
    • E0445
    • NS00044655
    • D90517
    • EN300-154749
    • F099159
    • J-640004
    • Z1020679810
    • 1436-34-6

  • Applications

    2-Butyloxirane (CAS 1436-34-6) is a monoepoxide that primarily serves as an intermediate and reactive diluent in epoxy and polymer formulations. In practical applications, it is often used as a building block to prepare glycidyl ether derivatives that are used in coatings, adhesives, and plastics formulations. It can function as a reactive diluent to reduce viscosity in epoxy systems during processing of coatings and laminates. It may be used in the synthesis of specialty polymers and crosslinking agents, and could be involved in electronics encapsulation and potting materials where epoxy chemistries are common. Its use is typically subject to formulation constraints and local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1175.42
    methanol 879.97
    isopropanol 1042.78
    water 0.3
    ethyl acetate 559.09
    n-propanol 954.26
    acetone 817.86
    n-butanol 872.87
    acetonitrile 653.31
    DMF 546.87
    toluene 252.45
    isobutanol 680.26
    1,4-dioxane 1025.53
    methyl acetate 523.92
    THF 1359.6
    2-butanone 631.15
    n-pentanol 539.67
    sec-butanol 752.11
    n-hexane 120.07
    ethylene glycol 214.73
    NMP 409.9
    cyclohexane 188.1
    DMSO 871.08
    n-butyl acetate 588.71
    n-octanol 228.11
    chloroform 1887.44
    n-propyl acetate 375.83
    acetic acid 709.82
    dichloromethane 1505.28
    cyclohexanone 746.67
    propylene glycol 391.89
    isopropyl acetate 322.05
    DMAc 302.24
    2-ethoxyethanol 559.25
    isopentanol 641.94
    n-heptane 118.6
    ethyl formate 355.92
    1,2-dichloroethane 800.05
    n-hexanol 721.79
    2-methoxyethanol 903.74
    isobutyl acetate 256.54
    tetrachloromethane 298.13
    n-pentyl acetate 247.64
    transcutol 1461.24
    n-heptanol 233.55
    ethylbenzene 130.73
    MIBK 296.13
    2-propoxyethanol 866.43
    tert-butanol 866.56
    MTBE 589.23
    2-butoxyethanol 394.83
    propionic acid 582.87
    o-xylene 130.19
    formic acid 155.63
    diethyl ether 632.73
    m-xylene 153.0
    p-xylene 160.32
    chlorobenzene 390.47
    dimethyl carbonate 113.22
    n-octane 37.03
    formamide 175.95
    cyclopentanone 804.03
    2-pentanone 520.71
    anisole 277.0
    cyclopentyl methyl ether 510.82
    gamma-butyrolactone 785.0
    1-methoxy-2-propanol 724.82
    pyridine 889.38
    3-pentanone 306.49
    furfural 692.28
    n-dodecane 26.95
    diethylene glycol 596.21
    diisopropyl ether 174.7
    tert-amyl alcohol 554.63
    acetylacetone 452.77
    n-hexadecane 29.97
    acetophenone 239.35
    methyl propionate 335.56
    isopentyl acetate 441.07
    trichloroethylene 1355.21
    n-nonanol 187.36
    cyclohexanol 560.73
    benzyl alcohol 285.06
    2-ethylhexanol 334.48
    isooctanol 188.49
    dipropyl ether 439.23
    1,2-dichlorobenzene 314.97
    ethyl lactate 175.86
    propylene carbonate 448.69
    n-methylformamide 349.6
    2-pentanol 536.09
    n-pentane 128.47
    1-propoxy-2-propanol 652.19
    1-methoxy-2-propyl acetate 420.86
    2-(2-methoxypropoxy) propanol 296.06
    mesitylene 99.33
    ε-caprolactone 600.27
    p-cymene 108.11
    epichlorohydrin 977.16
    1,1,1-trichloroethane 742.64
    2-aminoethanol 462.46
    morpholine-4-carbaldehyde 584.82
    sulfolane 750.62
    2,2,4-trimethylpentane 48.95
    2-methyltetrahydrofuran 907.87
    n-hexyl acetate 331.87
    isooctane 50.35
    2-(2-butoxyethoxy)ethanol 464.12
    sec-butyl acetate 236.85
    tert-butyl acetate 321.9
    decalin 59.44
    glycerin 391.31
    diglyme 808.14
    acrylic acid 430.63
    isopropyl myristate 134.99
    n-butyric acid 847.66
    acetyl acetate 305.12
    di(2-ethylhexyl) phthalate 122.75
    ethyl propionate 268.48
    nitromethane 766.06
    1,2-diethoxyethane 492.3
    benzonitrile 416.17
    trioctyl phosphate 97.86
    1-bromopropane 691.82
    gamma-valerolactone 875.98
    n-decanol 133.53
    triethyl phosphate 125.64
    4-methyl-2-pentanol 264.68
    propionitrile 653.09
    vinylene carbonate 420.13
    1,1,2-trichlorotrifluoroethane 667.42
    DMS 220.07
    cumene 92.32
    2-octanol 154.68
    2-hexanone 388.33
    octyl acetate 161.36
    limonene 169.5
    1,2-dimethoxyethane 794.52
    ethyl orthosilicate 128.46
    tributyl phosphate 121.14
    diacetone alcohol 397.1
    N,N-dimethylaniline 149.63
    acrylonitrile 676.57
    aniline 330.76
    1,3-propanediol 598.71
    bromobenzene 426.32
    dibromomethane 1108.39
    1,1,2,2-tetrachloroethane 1022.38
    2-methyl-cyclohexyl acetate 233.43
    tetrabutyl urea 139.23
    diisobutyl methanol 189.3
    2-phenylethanol 311.04
    styrene 188.19
    dioctyl adipate 179.44
    dimethyl sulfate 154.48
    ethyl butyrate 355.52
    methyl lactate 203.25
    butyl lactate 216.08
    diethyl carbonate 212.6
    propanediol butyl ether 386.52
    triethyl orthoformate 228.15
    p-tert-butyltoluene 108.09
    methyl 4-tert-butylbenzoate 196.67
    morpholine 1149.09
    tert-butylamine 564.8
    n-dodecanol 102.03
    dimethoxymethane 405.71
    ethylene carbonate 347.85
    cyrene 214.85
    2-ethoxyethyl acetate 318.53
    2-ethylhexyl acetate 324.31
    1,2,4-trichlorobenzene 362.87
    4-methylpyridine 592.26
    dibutyl ether 278.03
    2,6-dimethyl-4-heptanol 189.3
    DEF 389.5
    dimethyl isosorbide 389.59
    tetrachloroethylene 677.2
    eugenol 215.93
    triacetin 275.1
    span 80 316.89
    1,4-butanediol 241.16
    1,1-dichloroethane 987.99
    2-methyl-1-pentanol 388.68
    methyl formate 233.63
    2-methyl-1-butanol 552.81
    n-decane 46.74
    butyronitrile 718.07
    3,7-dimethyl-1-octanol 233.38
    1-chlorooctane 151.92
    1-chlorotetradecane 61.01
    n-nonane 49.55
    undecane 33.58
    tert-butylcyclohexane 61.09
    cyclooctane 53.31
    cyclopentanol 634.13
    tetrahydropyran 1151.05
    tert-amyl methyl ether 319.63
    2,5,8-trioxanonane 484.86
    1-hexene 382.07
    2-isopropoxyethanol 406.77
    2,2,2-trifluoroethanol 158.5
    methyl butyrate 383.03

    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