1,1-Ethanediol

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  • Identifiers

    CAS number
    4433-56-1

    Molecular formula
    C2H6O2

    SMILES
    CC(O)O

    Safety labels

  • Odor profile

    Fragrance
    Odorless 47.65%
    Fruity 37.43%
    Alcoholic 35.68%
    Ethereal 31.85%
    Green 31.4%
    Pungent 28.74%
    Sharp 28.55%
    Fresh 26.77%
    Fermented 22.99%
    Sweet 19.74%

     

    Flavor
    Odorless 57.62%
    Bitter 55.45%
    Pungent 37.02%
    Alcoholic 36.8%
    Sweet 25.71%
    Very slight 24.38%
    Musty 23.96%
    Vinegar 23.66%
    Sweet-like 23.11%
    Alcohol 22.65%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    -0.6

    pKa est.
    10.02 (weak base)

    Molecular weight
    62.07 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point est.
    133°C

    Flash point

    • 73.67 ˚C est.

  • Synonyms

    • 1,1-Ethanediol
    • Acetaldehyde hydrate
    • 4433-56-1
    • DTXSID90196143
    • RefChem:71132
    • DTXCID00118634
    • ethane-1,1-diol
    • SCHEMBL3401
    • SCHEMBL33633
    • SCHEMBL48111
    • SCHEMBL51846
    • SCHEMBL330804
    • SCHEMBL1497948
    • SCHEMBL3305252
    • SCHEMBL4553654
    • SCHEMBL8389375
    • 4433-56-1

  • Applications

    1,1-Ethanediol (CAS 4433-56-1) is a versatile building block and solvent with broad practical relevance across industries: it serves as a precursor for polyester resins and PET; it acts as a solvent and processing aid in coatings, inks, and cleaning formulations; it functions as an antifreeze and heat-transfer fluid in automotive and industrial cooling systems; it serves as a humectant and solvent in cosmetics and personal care; and it may be used as a solvent or intermediate in pharmaceutical manufacturing, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 560.36
    methanol 1205.87
    isopropanol 370.03
    water 5595.76
    ethyl acetate 50.18
    n-propanol 313.87
    acetone 266.36
    n-butanol 184.98
    acetonitrile 159.1
    DMF 1166.5
    toluene 6.08
    isobutanol 170.13
    1,4-dioxane 197.17
    methyl acetate 98.05
    THF 212.4
    2-butanone 94.77
    n-pentanol 104.45
    sec-butanol 178.8
    n-hexane 8.99
    ethylene glycol 1298.67
    NMP 404.11
    cyclohexane 7.88
    DMSO 491.09
    n-butyl acetate 27.8
    n-octanol 47.4
    chloroform 22.62
    n-propyl acetate 39.83
    acetic acid 736.35
    dichloromethane 24.09
    cyclohexanone 82.22
    propylene glycol 908.04
    isopropyl acetate 29.72
    DMAc 648.36
    2-ethoxyethanol 336.92
    isopentanol 98.53
    n-heptane 9.12
    ethyl formate 105.44
    1,2-dichloroethane 21.41
    n-hexanol 78.55
    2-methoxyethanol 694.42
    isobutyl acetate 23.64
    tetrachloromethane 13.57
    n-pentyl acetate 23.38
    transcutol 255.85
    n-heptanol 48.65
    ethylbenzene 4.26
    MIBK 31.74
    2-propoxyethanol 252.74
    tert-butanol 281.27
    MTBE 59.18
    2-butoxyethanol 139.65
    propionic acid 330.98
    o-xylene 8.67
    formic acid 1490.63
    diethyl ether 54.63
    m-xylene 7.53
    p-xylene 6.76
    chlorobenzene 6.88
    dimethyl carbonate 77.23
    n-octane 3.45
    formamide 1024.92
    cyclopentanone 130.7
    2-pentanone 57.92
    anisole 25.46
    cyclopentyl methyl ether 59.97
    gamma-butyrolactone 164.2
    1-methoxy-2-propanol 391.07
    pyridine 50.8
    3-pentanone 44.19
    furfural 166.16
    n-dodecane 2.89
    diethylene glycol 435.21
    diisopropyl ether 14.78
    tert-amyl alcohol 146.41
    acetylacetone 62.43
    n-hexadecane 2.85
    acetophenone 29.63
    methyl propionate 76.31
    isopentyl acetate 19.64
    trichloroethylene 26.36
    n-nonanol 39.73
    cyclohexanol 96.32
    benzyl alcohol 51.55
    2-ethylhexanol 28.59
    isooctanol 31.15
    dipropyl ether 38.18
    1,2-dichlorobenzene 7.3
    ethyl lactate 77.06
    propylene carbonate 73.35
    n-methylformamide 658.44
    2-pentanol 86.09
    n-pentane 10.3
    1-propoxy-2-propanol 137.39
    1-methoxy-2-propyl acetate 44.84
    2-(2-methoxypropoxy) propanol 97.44
    mesitylene 6.66
    ε-caprolactone 80.2
    p-cymene 7.09
    epichlorohydrin 96.25
    1,1,1-trichloroethane 13.75
    2-aminoethanol 1046.87
    morpholine-4-carbaldehyde 446.28
    sulfolane 178.13
    2,2,4-trimethylpentane 4.66
    2-methyltetrahydrofuran 84.71
    n-hexyl acetate 33.65
    isooctane 3.6
    2-(2-butoxyethoxy)ethanol 136.92
    sec-butyl acetate 19.63
    tert-butyl acetate 28.71
    decalin 3.33
    glycerin 1265.35
    diglyme 215.72
    acrylic acid 393.31
    isopropyl myristate 13.94
    n-butyric acid 170.35
    acetyl acetate 34.95
    di(2-ethylhexyl) phthalate 24.6
    ethyl propionate 38.4
    nitromethane 526.51
    1,2-diethoxyethane 44.68
    benzonitrile 26.34
    trioctyl phosphate 20.11
    1-bromopropane 10.7
    gamma-valerolactone 222.38
    n-decanol 28.75
    triethyl phosphate 20.65
    4-methyl-2-pentanol 40.22
    propionitrile 79.31
    vinylene carbonate 74.84
    1,1,2-trichlorotrifluoroethane 204.4
    DMS 35.59
    cumene 5.44
    2-octanol 26.14
    2-hexanone 39.76
    octyl acetate 23.55
    limonene 10.55
    1,2-dimethoxyethane 290.7
    ethyl orthosilicate 20.94
    tributyl phosphate 21.78
    diacetone alcohol 83.09
    N,N-dimethylaniline 29.74
    acrylonitrile 120.74
    aniline 38.68
    1,3-propanediol 603.1
    bromobenzene 3.3
    dibromomethane 12.8
    1,1,2,2-tetrachloroethane 27.89
    2-methyl-cyclohexyl acetate 21.51
    tetrabutyl urea 34.61
    diisobutyl methanol 17.44
    2-phenylethanol 36.01
    styrene 5.14
    dioctyl adipate 26.34
    dimethyl sulfate 117.1
    ethyl butyrate 26.59
    methyl lactate 164.66
    butyl lactate 46.67
    diethyl carbonate 21.16
    propanediol butyl ether 167.23
    triethyl orthoformate 26.79
    p-tert-butyltoluene 7.76
    methyl 4-tert-butylbenzoate 41.94
    morpholine 274.46
    tert-butylamine 136.32
    n-dodecanol 22.0
    dimethoxymethane 269.19
    ethylene carbonate 67.38
    cyrene 107.1
    2-ethoxyethyl acetate 35.57
    2-ethylhexyl acetate 15.13
    1,2,4-trichlorobenzene 10.29
    4-methylpyridine 41.62
    dibutyl ether 20.44
    2,6-dimethyl-4-heptanol 17.44
    DEF 128.33
    dimethyl isosorbide 93.86
    tetrachloroethylene 28.74
    eugenol 65.7
    triacetin 45.89
    span 80 97.38
    1,4-butanediol 343.08
    1,1-dichloroethane 17.63
    2-methyl-1-pentanol 51.71
    methyl formate 392.9
    2-methyl-1-butanol 97.54
    n-decane 4.38
    butyronitrile 58.9
    3,7-dimethyl-1-octanol 28.84
    1-chlorooctane 9.38
    1-chlorotetradecane 4.93
    n-nonane 4.29
    undecane 3.35
    tert-butylcyclohexane 3.98
    cyclooctane 3.33
    cyclopentanol 165.93
    tetrahydropyran 83.18
    tert-amyl methyl ether 41.67
    2,5,8-trioxanonane 161.66
    1-hexene 14.73
    2-isopropoxyethanol 167.22
    2,2,2-trifluoroethanol 488.61
    methyl butyrate 51.91

    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