1,8-Octanediol

Overview IFRA Request a quote

  • Identifiers

    CAS number
    629-41-4

    Molecular formula
    C8H18O2

    SMILES
    C(CCCCO)CCCO

    Safety labels

  • Odor profile

    Fragrance
    Oily 47.79%
    Sweet 45.87%
    Alcoholic 36.53%
    Fresh 35.7%
    Fruity 33.21%
    Floral 32.32%
    Fishy 31.41%
    Rose 30.17%
    Odorless 28.28%
    Musty 27.21%

     

    Flavor
    Sweet 62.33%
    Green 53.79%
    Oil 42.28%
    Musty 39.27%
    Herbal 38.83%
    Earthy 36.99%
    Bitter 36.83%
    Mushroom 36.44%
    Rose 34.87%
    Fruity 34.65%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    1.4

    pKa est.
    8.56 (weak base)

    Molecular weight
    146.23 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    274°C

    Flash point

    • 132.6 ˚C est.

  • Synonyms

    • 1,8-Octanediol
    • Octane-1,8-diol
    • Octanediol
    • 1,8-Dihydroxyoctane
    • UNII-806K32R50Z
    • ORISTAR OTD
    • EINECS 211-090-8
    • NSC-81228
    • .OMEGA.-OCTANEDIOL
    • 806K32R50Z
    • DTXSID2022416
    • CHEBI:44630
    • 1,8-OCTAMETHYLENE GLYCOL
    • .ALPHA.,.OMEGA.-OCTANEDIOL
    • NSC 81228
    • OMEGA-OCTANEDIOL
    • RefChem:73781
    • OCTANEDIOL [INCI]
    • ALPHA,OMEGA-OCTANEDIOL
    • DTXCID702416
    • CHEBI:37872
    • OEIJHBUUFURJLI-UHFFFAOYSA-N
    • 629-41-4
    • Octamethylene glycol
    • MFCD00002989
    • Octan-1,8-diol
    • 31762-64-8
    • 1,8-Octandiol
    • 1,8-Octanediol, 98%
    • SCHEMBL22427
    • BIDD:ER0591
    • orb2939860
    • SCHEMBL1004944
    • SCHEMBL3631489
    • SCHEMBL3764660
    • SCHEMBL8672573
    • SCHEMBL11230353
    • SCHEMBL19411337
    • BDBM22602
    • NSC81228
    • AC-662
    • CCG-40427
    • LMFA05000683
    • SBB060739
    • AKOS015856564
    • CS-W018224
    • FO30317
    • AS-12687
    • ODI
    • SY006277
    • NS00035225
    • O0024
    • ST50824036
    • EN300-85286
    • O12036
    • F078005
    • Q3348792
    • 629-41-4

  • Applications

    1,8-Octanediol is widely used as a diol building block in polymer chemistry, serving as a reactive monomer and chain extender for polyurethane and polyester formulations to produce coatings, adhesives, and elastomeric materials. In industrial manufacturing it commonly acts as a processing aid and chemical intermediate, enabling the synthesis of specialty resins and plasticizers. It can also function as a resin component or crosslinking agent in coatings and inks, and may be employed as a solvent or formulation intermediate in various formulations under appropriate regulatory controls.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1788.57
    methanol 2553.09
    isopropanol 1394.82
    water 1.01
    ethyl acetate 330.43
    n-propanol 1613.48
    acetone 558.06
    n-butanol 1566.38
    acetonitrile 223.87
    DMF 673.73
    toluene 71.23
    isobutanol 929.43
    1,4-dioxane 621.29
    methyl acetate 209.81
    THF 1577.68
    2-butanone 375.57
    n-pentanol 604.11
    sec-butanol 903.53
    n-hexane 130.56
    ethylene glycol 299.07
    NMP 544.97
    cyclohexane 187.66
    DMSO 1919.98
    n-butyl acetate 409.53
    n-octanol 174.05
    chloroform 566.1
    n-propyl acetate 305.2
    acetic acid 732.87
    dichloromethane 445.59
    cyclohexanone 836.81
    propylene glycol 501.26
    isopropyl acetate 201.3
    DMAc 228.07
    2-ethoxyethanol 632.6
    isopentanol 823.92
    n-heptane 121.27
    ethyl formate 280.39
    1,2-dichloroethane 384.46
    n-hexanol 605.27
    2-methoxyethanol 1456.15
    isobutyl acetate 171.83
    tetrachloromethane 159.11
    n-pentyl acetate 209.04
    transcutol 1167.92
    n-heptanol 238.98
    ethylbenzene 49.44
    MIBK 206.48
    2-propoxyethanol 699.5
    tert-butanol 1194.24
    MTBE 324.5
    2-butoxyethanol 427.89
    propionic acid 646.64
    o-xylene 55.93
    formic acid 288.91
    diethyl ether 496.08
    m-xylene 57.9
    p-xylene 63.88
    chlorobenzene 131.18
    dimethyl carbonate 57.1
    n-octane 30.15
    formamide 370.79
    cyclopentanone 977.74
    2-pentanone 451.29
    anisole 111.97
    cyclopentyl methyl ether 627.63
    gamma-butyrolactone 948.86
    1-methoxy-2-propanol 956.6
    pyridine 409.24
    3-pentanone 226.86
    furfural 605.04
    n-dodecane 13.29
    diethylene glycol 484.65
    diisopropyl ether 108.65
    tert-amyl alcohol 651.87
    acetylacetone 252.52
    n-hexadecane 14.83
    acetophenone 124.29
    methyl propionate 248.9
    isopentyl acetate 292.09
    trichloroethylene 564.3
    n-nonanol 145.3
    cyclohexanol 838.94
    benzyl alcohol 157.48
    2-ethylhexanol 299.76
    isooctanol 186.27
    dipropyl ether 449.54
    1,2-dichlorobenzene 132.67
    ethyl lactate 141.26
    propylene carbonate 435.67
    n-methylformamide 586.81
    2-pentanol 757.37
    n-pentane 127.47
    1-propoxy-2-propanol 585.91
    1-methoxy-2-propyl acetate 246.94
    2-(2-methoxypropoxy) propanol 196.57
    mesitylene 45.33
    ε-caprolactone 617.11
    p-cymene 59.94
    epichlorohydrin 698.18
    1,1,1-trichloroethane 282.68
    2-aminoethanol 811.97
    morpholine-4-carbaldehyde 505.86
    sulfolane 1210.76
    2,2,4-trimethylpentane 35.37
    2-methyltetrahydrofuran 922.78
    n-hexyl acetate 229.97
    isooctane 29.17
    2-(2-butoxyethoxy)ethanol 360.81
    sec-butyl acetate 162.34
    tert-butyl acetate 226.93
    decalin 45.8
    glycerin 557.8
    diglyme 631.38
    acrylic acid 428.22
    isopropyl myristate 79.6
    n-butyric acid 1107.74
    acetyl acetate 137.67
    di(2-ethylhexyl) phthalate 79.0
    ethyl propionate 203.09
    nitromethane 548.23
    1,2-diethoxyethane 348.15
    benzonitrile 167.55
    trioctyl phosphate 78.97
    1-bromopropane 339.47
    gamma-valerolactone 928.71
    n-decanol 97.77
    triethyl phosphate 112.04
    4-methyl-2-pentanol 257.99
    propionitrile 367.6
    vinylene carbonate 306.91
    1,1,2-trichlorotrifluoroethane 639.55
    DMS 106.9
    cumene 43.95
    2-octanol 137.09
    2-hexanone 291.8
    octyl acetate 103.28
    limonene 128.15
    1,2-dimethoxyethane 693.88
    ethyl orthosilicate 122.04
    tributyl phosphate 100.68
    diacetone alcohol 349.52
    N,N-dimethylaniline 82.31
    acrylonitrile 354.23
    aniline 206.03
    1,3-propanediol 1225.55
    bromobenzene 109.31
    dibromomethane 377.26
    1,1,2,2-tetrachloroethane 589.94
    2-methyl-cyclohexyl acetate 194.32
    tetrabutyl urea 120.56
    diisobutyl methanol 161.64
    2-phenylethanol 165.06
    styrene 63.0
    dioctyl adipate 131.08
    dimethyl sulfate 123.54
    ethyl butyrate 297.43
    methyl lactate 172.43
    butyl lactate 217.56
    diethyl carbonate 142.65
    propanediol butyl ether 335.27
    triethyl orthoformate 209.77
    p-tert-butyltoluene 59.69
    methyl 4-tert-butylbenzoate 153.75
    morpholine 1090.59
    tert-butylamine 751.74
    n-dodecanol 71.18
    dimethoxymethane 383.55
    ethylene carbonate 287.99
    cyrene 193.21
    2-ethoxyethyl acetate 205.44
    2-ethylhexyl acetate 228.37
    1,2,4-trichlorobenzene 149.59
    4-methylpyridine 273.47
    dibutyl ether 236.84
    2,6-dimethyl-4-heptanol 161.64
    DEF 407.14
    dimethyl isosorbide 319.31
    tetrachloroethylene 540.07
    eugenol 156.56
    triacetin 188.63
    span 80 250.37
    1,4-butanediol 324.4
    1,1-dichloroethane 321.83
    2-methyl-1-pentanol 333.83
    methyl formate 262.12
    2-methyl-1-butanol 724.04
    n-decane 28.88
    butyronitrile 505.16
    3,7-dimethyl-1-octanol 162.15
    1-chlorooctane 98.89
    1-chlorotetradecane 30.41
    n-nonane 33.16
    undecane 18.21
    tert-butylcyclohexane 40.95
    cyclooctane 45.84
    cyclopentanol 1141.96
    tetrahydropyran 1092.44
    tert-amyl methyl ether 235.58
    2,5,8-trioxanonane 371.55
    1-hexene 297.75
    2-isopropoxyethanol 359.97
    2,2,2-trifluoroethanol 207.21
    methyl butyrate 348.11

    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