Oxazolidine-E

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  • Identifiers

    CAS number
    7747-35-5

    Molecular formula
    C7H13NO2

    SMILES
    CCC12COCN1COC2

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Fishy 37.66%
    Nutty 32.62%
    Animal 28.92%
    Popcorn 26.8%
    Odorless 26.75%
    Roasted 26.44%
    Sweet 25.83%
    Earthy 23.4%
    Mint 22.62%
    Musty 20.83%

     

    Flavor
    Bitter 37.68%
    Roasted 33.28%
    Earthy 28.75%
    Fatty 24.45%
    Alkaline 22.38%
    Vegetable 21.97%
    Cereal 21.86%
    Shrimp 21.53%
    Cauliflower 21.44%
    Bouillon 21.31%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    0.5

    pKa est.
    7.73 (neutral)

    Molecular weight
    143.18 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Fast

    Boiling point est.
    189°C

    Flash point

    • 88.3 ˚C est.

  • Synonyms

    • Oxazolidine E
    • 7-Ethylbicyclooxazolidine
    • 5-Ethyl-1-aza-3,7-dioxabicyclo[3.3.0]octane
    • Oxaban E
    • 7a-Ethyldihydro-1H,3H,5H-oxazolo(3,4-c)oxazole
    • Oxazolidine-E
    • 7a-ethyldihydro-1h,3h,5h-oxazolo[3,4-c]oxazole
    • CCRIS 9007
    • DTXSID3029289
    • OXABAN-E
    • TRUPTAN OX-E
    • EINECS 231-810-4
    • 1H,3H,5H-Oxazolo(3,4-c)oxazole, 7a-ethyldihydro-
    • AMINE CS 1246
    • DTXCID309289
    • EC 231-810-4
    • 1-Aza-5-ethyl-3,7-dioxabicyclo(3.3.0)octane
    • 1H,3H,5H-Oxazolo[3,4-c]oxazole, 7a-ethyldihydro-
    • 5-ethyl-1-aza-3,7-dioxabicyclo(3.3.0)octane
    • 1H,3H,5H-Oxazolo(3,4-c)oxazone, 7a-ethyldihydro-
    • RefChem:857098
    • 7-ETHYLBICYCLOOXAZOLIDINE [INCI]
    • 1H,3H,5H-Oxazolo3,4-coxazole, 7a-ethyldihydro-
    • 231-810-4
    • 7747-35-5
    • 7a-Ethyltetrahydro-1H-oxazolo[3,4-c]oxazole
    • Zoldine ZE
    • Neosyn TX
    • Chemtan A 60
    • Paramel TX 50
    • Bioban CS 1246
    • MFCD00192133
    • 7a-ethyl-1,3,5,7-tetrahydro-[1,3]oxazolo[3,4-c][1,3]oxazole
    • 1H,3H,5H-Oxazolo[3,4-c]oxazole,7a-ethyldihydro-
    • 20E75SVO7A
    • 7a-ethyl-tetrahydro-1H-[1,3]oxazolo[3,4-c][1,3]oxazole
    • CS 1246
    • CAS-7747-35-5
    • UNII-20E75SVO7A
    • SCHEMBL112257
    • 7a-ethyl-1,3,5,7-tetrahydrooxazolo[3,4-c]oxazole
    • CHEMBL3183106
    • 7-ETHYL BICYCLOOXAZOLIDINE
    • ZRCMGIXRGFOXNT-UHFFFAOYSA-N
    • Tox21_201455
    • Tox21_300546
    • MSK161248
    • AKOS015912703
    • MSK161248-2000M
    • NCGC00248090-01
    • NCGC00248090-02
    • NCGC00254508-01
    • NCGC00259006-01
    • AS-49752
    • SY116545
    • CS-0187246
    • NS00008070
    • L10007
    • F626572
    • 5-ethyl-1-aza-3,7-dioxabicyclo [3,3,0] octane
    • Q27253457
    • 5-Ethyl-1-aza-3,7-dioxabicyclo[3.3.0]octane, 97%
    • 7-Ethylbicyclooxazolidine Solution in Methanol, 2000ug/mL
    • 7a-Ethyldihydro-1H,3H,5H-[1,3]oxazolo[3,4-c][1,3]oxazole
    • 7747-35-5

  • Applications

    Oxazolidine-E is used primarily as a latent curing agent for epoxy resins in coatings, adhesives, and composite materials; upon exposure to moisture or elevated temperature it releases amine and participates in epoxy crosslinking, providing formulation stability and easy processing. It is also employed as an intermediate or building block in polymer synthesis and functional oxazolidine derivatives, enabling adjustment of network structure and material properties. In addition, Oxazolidine-E can function as an additive for surface treatment or as a curing component in plastic formulations for electronics, printing, and protective coatings. In many formulations it serves as part of two-component curing systems or as a precursor to related oxazolidine derivatives.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 347.32
    methanol 572.37
    isopropanol 209.79
    water 336.96
    ethyl acetate 266.47
    n-propanol 235.39
    acetone 210.7
    n-butanol 218.43
    acetonitrile 321.7
    DMF 334.74
    toluene 68.79
    isobutanol 161.09
    1,4-dioxane 307.86
    methyl acetate 200.42
    THF 326.67
    2-butanone 136.52
    n-pentanol 104.82
    sec-butanol 147.77
    n-hexane 4.91
    ethylene glycol 244.82
    NMP 221.54
    cyclohexane 16.01
    DMSO 308.96
    n-butyl acetate 93.93
    n-octanol 52.64
    chloroform 1179.08
    n-propyl acetate 93.17
    acetic acid 1076.55
    dichloromethane 924.8
    cyclohexanone 185.31
    propylene glycol 145.1
    isopropyl acetate 132.6
    DMAc 216.85
    2-ethoxyethanol 268.63
    isopentanol 163.15
    n-heptane 7.85
    ethyl formate 252.28
    1,2-dichloroethane 334.98
    n-hexanol 93.8
    2-methoxyethanol 512.23
    isobutyl acetate 56.75
    tetrachloromethane 217.11
    n-pentyl acetate 69.35
    transcutol 443.96
    n-heptanol 65.27
    ethylbenzene 27.78
    MIBK 91.88
    2-propoxyethanol 217.51
    tert-butanol 176.2
    MTBE 86.6
    2-butoxyethanol 145.57
    propionic acid 308.52
    o-xylene 52.88
    formic acid 1161.31
    diethyl ether 125.06
    m-xylene 59.77
    p-xylene 43.22
    chlorobenzene 165.35
    dimethyl carbonate 92.09
    n-octane 4.46
    formamide 1001.32
    cyclopentanone 233.65
    2-pentanone 133.31
    anisole 82.25
    cyclopentyl methyl ether 137.59
    gamma-butyrolactone 380.32
    1-methoxy-2-propanol 283.31
    pyridine 278.74
    3-pentanone 95.98
    furfural 435.5
    n-dodecane 4.84
    diethylene glycol 261.94
    diisopropyl ether 39.85
    tert-amyl alcohol 128.34
    acetylacetone 188.68
    n-hexadecane 5.35
    acetophenone 90.67
    methyl propionate 164.04
    isopentyl acetate 80.03
    trichloroethylene 770.96
    n-nonanol 49.47
    cyclohexanol 149.44
    benzyl alcohol 104.08
    2-ethylhexanol 53.22
    isooctanol 52.34
    dipropyl ether 52.44
    1,2-dichlorobenzene 162.83
    ethyl lactate 73.42
    propylene carbonate 227.61
    n-methylformamide 416.09
    2-pentanol 124.68
    n-pentane 11.46
    1-propoxy-2-propanol 131.12
    1-methoxy-2-propyl acetate 122.79
    2-(2-methoxypropoxy) propanol 115.54
    mesitylene 41.09
    ε-caprolactone 200.49
    p-cymene 32.31
    epichlorohydrin 391.13
    1,1,1-trichloroethane 356.82
    2-aminoethanol 313.69
    morpholine-4-carbaldehyde 298.62
    sulfolane 281.47
    2,2,4-trimethylpentane 9.18
    2-methyltetrahydrofuran 203.78
    n-hexyl acetate 81.69
    isooctane 7.7
    2-(2-butoxyethoxy)ethanol 151.8
    sec-butyl acetate 61.54
    tert-butyl acetate 107.89
    decalin 8.01
    glycerin 288.49
    diglyme 296.81
    acrylic acid 381.77
    isopropyl myristate 34.99
    n-butyric acid 425.8
    acetyl acetate 230.13
    di(2-ethylhexyl) phthalate 45.09
    ethyl propionate 86.15
    nitromethane 940.94
    1,2-diethoxyethane 117.36
    benzonitrile 148.0
    trioctyl phosphate 31.91
    1-bromopropane 132.74
    gamma-valerolactone 328.33
    n-decanol 35.89
    triethyl phosphate 54.13
    4-methyl-2-pentanol 73.28
    propionitrile 179.54
    vinylene carbonate 270.54
    1,1,2-trichlorotrifluoroethane 431.83
    DMS 79.88
    cumene 26.99
    2-octanol 39.25
    2-hexanone 64.25
    octyl acetate 45.51
    limonene 41.08
    1,2-dimethoxyethane 223.97
    ethyl orthosilicate 51.92
    tributyl phosphate 40.95
    diacetone alcohol 131.11
    N,N-dimethylaniline 56.62
    acrylonitrile 262.94
    aniline 162.41
    1,3-propanediol 376.69
    bromobenzene 156.82
    dibromomethane 473.33
    1,1,2,2-tetrachloroethane 496.15
    2-methyl-cyclohexyl acetate 62.87
    tetrabutyl urea 43.31
    diisobutyl methanol 38.98
    2-phenylethanol 94.52
    styrene 36.6
    dioctyl adipate 53.4
    dimethyl sulfate 138.49
    ethyl butyrate 86.0
    methyl lactate 117.33
    butyl lactate 65.41
    diethyl carbonate 67.78
    propanediol butyl ether 101.16
    triethyl orthoformate 68.02
    p-tert-butyltoluene 32.2
    methyl 4-tert-butylbenzoate 91.18
    morpholine 328.86
    tert-butylamine 108.99
    n-dodecanol 27.41
    dimethoxymethane 229.21
    ethylene carbonate 212.14
    cyrene 107.59
    2-ethoxyethyl acetate 109.86
    2-ethylhexyl acetate 60.86
    1,2,4-trichlorobenzene 193.32
    4-methylpyridine 193.57
    dibutyl ether 43.02
    2,6-dimethyl-4-heptanol 38.98
    DEF 171.15
    dimethyl isosorbide 161.99
    tetrachloroethylene 423.67
    eugenol 97.5
    triacetin 99.75
    span 80 84.11
    1,4-butanediol 128.96
    1,1-dichloroethane 351.66
    2-methyl-1-pentanol 81.2
    methyl formate 324.49
    2-methyl-1-butanol 146.03
    n-decane 7.46
    butyronitrile 193.02
    3,7-dimethyl-1-octanol 53.42
    1-chlorooctane 30.26
    1-chlorotetradecane 13.26
    n-nonane 6.35
    undecane 5.79
    tert-butylcyclohexane 7.71
    cyclooctane 7.62
    cyclopentanol 177.25
    tetrahydropyran 184.42
    tert-amyl methyl ether 72.39
    2,5,8-trioxanonane 201.69
    1-hexene 18.64
    2-isopropoxyethanol 144.19
    2,2,2-trifluoroethanol 666.97
    methyl butyrate 108.46

    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