Hydroxyethyl imidazolidinone

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  • Identifiers

    CAS number
    3699-54-5

    Molecular formula
    C5H10N2O2

    SMILES
    C1CN(C(=O)N1)CCO

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 56.71%
    Sweet 41.02%
    Fishy 31.23%
    Nutty 25.52%
    Popcorn 22.89%
    Savory 20.7%
    Cooling 17.0%
    Burnt 16.77%
    Roasted 16.5%
    Caramellic 15.75%

     

    Flavor
    Bitter 62.46%
    Odorless 39.87%
    Sweet-like 24.5%
    Roasted 23.48%
    Bland 21.68%
    Alkaline 21.09%
    Very mild 20.89%
    Bouillon 20.29%
    Cauliflower 20.09%
    Bread crust 20.0%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    -1.4

    pKa est.
    7.89 (neutral)

    Molecular weight
    130.15 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very slow

    Boiling point est.
    332°C

    Flash point

    • 174.89 ˚C est.

  • Synonyms

    • 3699-54-5
    • 1-(2-Hydroxyethyl)imidazolidin-2-one
    • 1-(2-Hydroxyethyl)-2-imidazolidinone
    • 2-Imidazolidinone, 1-(2-hydroxyethyl)-
    • Hydroxyethyl imidazolidinone
    • Hydroxyethylethyleneurea
    • N-(2-Hydroxyethyl)ethyleneurea
    • NSC 5775
    • 1-(Hydroxyethyl)ethyleneurea
    • EINECS 223-032-9
    • N0K8F6P8IF
    • DTXSID0029260
    • AI3-24563
    • NSC-5775
    • SARTOMER SR 511
    • DTXCID109260
    • EC 223-032-9
    • N-(2-HYDROXYETHYL)IMIDAZOLIDONE
    • N-(.BETA.-HYDROXYETHYL)-N,N'-ETHYLENE UREA
    • RefChem:789470
    • HYDROXYETHYL IMIDAZOLIDINONE [INCI]
    • N-(BETA-HYDROXYETHYL)-N,N'-ETHYLENE UREA
    • 223-032-9
    • InChI=1/C5H10N2O2/c8-4-3-7-2-1-6-5(7)9/h8H,1-4H2,(H,6,9
    • MFCD00037883
    • UNII-N0K8F6P8IF
    • 1-(2-Hydroxyethyl)-2-imidazolidinone,C5H10N2O2,3699-54-5
    • NSC5775
    • HEEU
    • hydroxyethyl-imidazoridinone
    • SCHEMBL93985
    • SCHEMBL1139752
    • SCHEMBL2819250
    • CHEMBL3188894
    • SCHEMBL11191674
    • GLXC-22664
    • STR08822
    • Tox21_200698
    • 1-(2-hydroxyethyl)2-imidazolidinone
    • SBB008288
    • AKOS000121609
    • 1-(2-hydroxyethyl)-2-oxoimidazolidine
    • 3-(2-hydroxyethyl)-2-oxoimidazolidine
    • AT18735
    • 1-(2-hydroxy-ethyl)-imidazolidin-2-one
    • NCGC00248802-01
    • NCGC00258252-01
    • AC-14505
    • SY109453
    • CAS-3699-54-5
    • CS-0077124
    • NS00001841
    • ST50828308
    • EN300-21757
    • F242516
    • Q27284354
    • Z111875094
    • 3699-54-5

  • Applications

    Hydroxyethyl imidazolidinone (CAS 3699-54-5) is primarily used as a polar solvent/co-solvent and as a reactive intermediate in polymer and resin synthesis. It serves as a processing additive in coatings, inks, and adhesives, helping to solubilize components and adjust rheology, and can act as a plasticizer or coupling agent in certain plastics formulations. In cosmetics and personal care, it may function as a solvent or humectant and viscosity modifier in formulations. It can also serve as a building block for specialty chemicals and intermediates in chemical synthesis, subject to formulation limits and local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 201.69
    methanol 667.46
    isopropanol 72.7
    water 1638.39
    ethyl acetate 12.88
    n-propanol 92.75
    acetone 25.97
    n-butanol 58.2
    acetonitrile 39.73
    DMF 641.62
    toluene 2.8
    isobutanol 55.08
    1,4-dioxane 33.1
    methyl acetate 15.06
    THF 47.64
    2-butanone 14.18
    n-pentanol 30.73
    sec-butanol 41.0
    n-hexane 0.26
    ethylene glycol 316.93
    NMP 265.95
    cyclohexane 0.3
    DMSO 581.92
    n-butyl acetate 7.89
    n-octanol 9.16
    chloroform 40.4
    n-propyl acetate 6.51
    acetic acid 353.58
    dichloromethane 60.2
    cyclohexanone 32.25
    propylene glycol 196.78
    isopropyl acetate 7.31
    DMAc 306.0
    2-ethoxyethanol 136.82
    isopentanol 33.57
    n-heptane 0.35
    ethyl formate 70.72
    1,2-dichloroethane 25.97
    n-hexanol 16.34
    2-methoxyethanol 370.65
    isobutyl acetate 4.0
    tetrachloromethane 8.93
    n-pentyl acetate 8.77
    transcutol 73.32
    n-heptanol 11.83
    ethylbenzene 1.73
    MIBK 9.37
    2-propoxyethanol 67.22
    tert-butanol 46.29
    MTBE 7.39
    2-butoxyethanol 43.99
    propionic acid 92.93
    o-xylene 4.02
    formic acid 1409.99
    diethyl ether 5.06
    m-xylene 3.9
    p-xylene 2.66
    chlorobenzene 8.85
    dimethyl carbonate 13.71
    n-octane 0.27
    formamide 856.64
    cyclopentanone 58.34
    2-pentanone 13.48
    anisole 8.58
    cyclopentyl methyl ether 12.28
    gamma-butyrolactone 108.44
    1-methoxy-2-propanol 141.87
    pyridine 37.72
    3-pentanone 7.39
    furfural 196.86
    n-dodecane 0.3
    diethylene glycol 131.72
    diisopropyl ether 1.6
    tert-amyl alcohol 35.97
    acetylacetone 19.75
    n-hexadecane 0.33
    acetophenone 14.5
    methyl propionate 17.34
    isopentyl acetate 7.87
    trichloroethylene 52.97
    n-nonanol 8.11
    cyclohexanol 19.91
    benzyl alcohol 28.25
    2-ethylhexanol 7.06
    isooctanol 9.19
    dipropyl ether 3.27
    1,2-dichlorobenzene 12.09
    ethyl lactate 19.51
    propylene carbonate 47.49
    n-methylformamide 457.19
    2-pentanol 17.07
    n-pentane 0.39
    1-propoxy-2-propanol 30.24
    1-methoxy-2-propyl acetate 15.24
    2-(2-methoxypropoxy) propanol 29.34
    mesitylene 2.81
    ε-caprolactone 39.01
    p-cymene 2.94
    epichlorohydrin 88.09
    1,1,1-trichloroethane 13.33
    2-aminoethanol 377.39
    morpholine-4-carbaldehyde 198.98
    sulfolane 165.84
    2,2,4-trimethylpentane 0.48
    2-methyltetrahydrofuran 20.91
    n-hexyl acetate 10.32
    isooctane 0.31
    2-(2-butoxyethoxy)ethanol 38.15
    sec-butyl acetate 3.75
    tert-butyl acetate 7.34
    decalin 0.38
    glycerin 369.92
    diglyme 67.91
    acrylic acid 139.64
    isopropyl myristate 3.77
    n-butyric acid 96.73
    acetyl acetate 11.94
    di(2-ethylhexyl) phthalate 10.71
    ethyl propionate 6.58
    nitromethane 294.63
    1,2-diethoxyethane 8.71
    benzonitrile 26.82
    trioctyl phosphate 7.39
    1-bromopropane 6.86
    gamma-valerolactone 131.09
    n-decanol 5.68
    triethyl phosphate 7.3
    4-methyl-2-pentanol 9.76
    propionitrile 25.53
    vinylene carbonate 62.38
    1,1,2-trichlorotrifluoroethane 171.18
    DMS 10.07
    cumene 2.13
    2-octanol 6.59
    2-hexanone 6.15
    octyl acetate 6.15
    limonene 3.35
    1,2-dimethoxyethane 78.67
    ethyl orthosilicate 6.18
    tributyl phosphate 7.48
    diacetone alcohol 28.18
    N,N-dimethylaniline 9.54
    acrylonitrile 61.63
    aniline 19.87
    1,3-propanediol 280.26
    bromobenzene 6.22
    dibromomethane 21.55
    1,1,2,2-tetrachloroethane 40.12
    2-methyl-cyclohexyl acetate 7.25
    tetrabutyl urea 12.17
    diisobutyl methanol 4.35
    2-phenylethanol 18.44
    styrene 2.08
    dioctyl adipate 7.66
    dimethyl sulfate 53.29
    ethyl butyrate 6.92
    methyl lactate 52.89
    butyl lactate 16.95
    diethyl carbonate 5.55
    propanediol butyl ether 45.76
    triethyl orthoformate 6.6
    p-tert-butyltoluene 2.77
    methyl 4-tert-butylbenzoate 20.34
    morpholine 61.78
    tert-butylamine 15.24
    n-dodecanol 3.99
    dimethoxymethane 74.41
    ethylene carbonate 39.13
    cyrene 48.47
    2-ethoxyethyl acetate 13.69
    2-ethylhexyl acetate 5.65
    1,2,4-trichlorobenzene 14.82
    4-methylpyridine 31.78
    dibutyl ether 2.84
    2,6-dimethyl-4-heptanol 4.35
    DEF 51.34
    dimethyl isosorbide 38.49
    tetrachloroethylene 32.44
    eugenol 28.82
    triacetin 13.58
    span 80 26.11
    1,4-butanediol 124.09
    1,1-dichloroethane 16.13
    2-methyl-1-pentanol 20.47
    methyl formate 246.67
    2-methyl-1-butanol 37.39
    n-decane 0.45
    butyronitrile 30.06
    3,7-dimethyl-1-octanol 8.12
    1-chlorooctane 2.21
    1-chlorotetradecane 0.98
    n-nonane 0.4
    undecane 0.36
    tert-butylcyclohexane 0.4
    cyclooctane 0.21
    cyclopentanol 44.58
    tetrahydropyran 10.34
    tert-amyl methyl ether 7.2
    2,5,8-trioxanonane 49.4
    1-hexene 1.22
    2-isopropoxyethanol 45.03
    2,2,2-trifluoroethanol 217.51
    methyl butyrate 12.96

    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