Octacosanoic acid

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  • Identifiers

    CAS number
    506-48-9

    Molecular formula
    C28H56O2

    SMILES
    CCCCCCCCCCCCCCCCCCCCCCCCCCCC(=O)O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Waxy 83.56%
    Fatty 64.62%
    Oily 39.04%
    Odorless 32.43%
    Creamy 18.34%
    Fishy 17.86%
    Savory 17.54%
    Meaty 16.82%
    Sweet 14.68%
    Dairy 14.49%

     

    Flavor
    Waxy 53.71%
    Fatty 45.64%
    Mild 38.31%
    Bland 34.3%
    Faint 31.2%
    Alkane 29.17%
    Fat 29.16%
    Odorless 27.52%
    Slightly waxy 25.4%
    Oily 24.68%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    12.9

    pKa est.
    8.62 (weak base)

    Molecular weight
    424.7 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    529°C

    Melting point expt.

    • 90.9 °C

    Flash point

    • 252.03 ˚C est.

  • Synonyms

    • OCTACOSANOIC ACID
    • 506-48-9
    • Montanic acid
    • n-octacosanoic acid
    • 4BKL1A0KJY
    • NSC-407311
    • DTXSID2075051
    • CHEBI:31001
    • RefChem:167558
    • DTXCID7040863
    • 208-041-8
    • octacosoic acid
    • MFCD00002812
    • n-octacosanoate
    • octacosanoicacid
    • C28:0
    • UNII-4BKL1A0KJY
    • octacosoate
    • Octacosansaeure
    • octocosoic acid
    • octaeicosanoic acid
    • Octacosancarbonsaeure
    • 1-octacosanoic acid
    • EINECS 208-041-8
    • n-octaeicosanoic acid
    • NSC 407311
    • MONTAN ACID ESTER
    • Octacosanoic acid,synthetic
    • SCHEMBL49866
    • orb1299202
    • CH3-[CH2]26-COOH
    • CHEMBL2261064
    • HY-N8425
    • LMFA01010028
    • MSK159772
    • NSC407311
    • AKOS015892943
    • Octacosanoic acid, synthetic, >=98%
    • EBC-616509
    • FA 28:0
    • DB-255857
    • CS-0144141
    • M1342
    • NS00013426
    • ST51037386
    • A12581
    • C21933
    • F619434
    • Q911196
    • 03D7DC3A-50B1-4BBA-9AF7-C86F38E231A2
    • Octacosanoic acid, puriss., synthetic, >=98.5% (GC)
    • 506-48-9

  • Applications

    Octacosanoic acid (CAS 506-48-9) is a very long-chain fatty acid (C28) used primarily as a chemical building block for the synthesis of wax esters and specialty lubricants. It is commonly employed as a feedstock for oleochemical derivatives to produce emollient and thickening esters for cosmetics and personal care, and it also serves as a component in lubricants and metalworking fluids to improve high-temperature stability and service life. In addition, the acid can be used as a component in coatings and inks as a wax-like additive to enhance gloss, water resistance, and slip; it also serves as an intermediate for polymer and plasticizer applications in plastics.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 0.98
    methanol 1.43
    isopropanol 0.94
    water 0.01
    ethyl acetate 7.81
    n-propanol 1.48
    acetone 4.71
    n-butanol 1.85
    acetonitrile 1.26
    DMF 13.49
    toluene 4.11
    isobutanol 1.58
    1,4-dioxane 11.65
    methyl acetate 5.46
    THF 51.18
    2-butanone 8.42
    n-pentanol 2.58
    sec-butanol 2.03
    n-hexane 2.14
    ethylene glycol 0.18
    NMP 76.93
    cyclohexane 7.48
    DMSO 22.93
    n-butyl acetate 18.02
    n-octanol 7.55
    chloroform 41.65
    n-propyl acetate 17.37
    acetic acid 3.78
    dichloromethane 36.7
    cyclohexanone 40.99
    propylene glycol 0.59
    isopropyl acetate 11.73
    DMAc 45.19
    2-ethoxyethanol 7.18
    isopentanol 3.06
    n-heptane 3.15
    ethyl formate 4.41
    1,2-dichloroethane 21.81
    n-hexanol 3.1
    2-methoxyethanol 5.41
    isobutyl acetate 14.32
    tetrachloromethane 12.31
    n-pentyl acetate 38.45
    transcutol 79.18
    n-heptanol 6.22
    ethylbenzene 5.92
    MIBK 12.93
    2-propoxyethanol 9.89
    tert-butanol 3.33
    MTBE 8.66
    2-butoxyethanol 18.6
    propionic acid 3.84
    o-xylene 6.21
    formic acid 1.07
    diethyl ether 4.02
    m-xylene 4.73
    p-xylene 8.34
    chlorobenzene 9.26
    dimethyl carbonate 4.19
    n-octane 2.06
    formamide 2.02
    cyclopentanone 46.53
    2-pentanone 9.02
    anisole 11.24
    cyclopentyl methyl ether 25.8
    gamma-butyrolactone 43.31
    1-methoxy-2-propanol 7.67
    pyridine 13.09
    3-pentanone 9.98
    furfural 31.36
    n-dodecane 1.12
    diethylene glycol 3.42
    diisopropyl ether 4.82
    tert-amyl alcohol 5.86
    acetylacetone 17.37
    n-hexadecane 1.35
    acetophenone 19.69
    methyl propionate 7.74
    isopentyl acetate 23.45
    trichloroethylene 44.51
    n-nonanol 9.0
    cyclohexanol 6.7
    benzyl alcohol 5.47
    2-ethylhexanol 6.21
    isooctanol 8.14
    dipropyl ether 15.33
    1,2-dichlorobenzene 17.75
    ethyl lactate 9.77
    propylene carbonate 30.37
    n-methylformamide 3.58
    2-pentanol 2.18
    n-pentane 0.96
    1-propoxy-2-propanol 15.05
    1-methoxy-2-propyl acetate 26.02
    2-(2-methoxypropoxy) propanol 29.74
    mesitylene 5.39
    ε-caprolactone 43.21
    p-cymene 8.19
    epichlorohydrin 36.68
    1,1,1-trichloroethane 31.06
    2-aminoethanol 0.74
    morpholine-4-carbaldehyde 35.59
    sulfolane 123.32
    2,2,4-trimethylpentane 2.38
    2-methyltetrahydrofuran 30.29
    n-hexyl acetate 35.86
    isooctane 1.39
    2-(2-butoxyethoxy)ethanol 31.85
    sec-butyl acetate 17.02
    tert-butyl acetate 27.73
    decalin 5.12
    glycerin 1.71
    diglyme 74.03
    acrylic acid 2.95
    isopropyl myristate 14.39
    n-butyric acid 8.9
    acetyl acetate 8.69
    di(2-ethylhexyl) phthalate 12.06
    ethyl propionate 16.31
    nitromethane 8.97
    1,2-diethoxyethane 29.34
    benzonitrile 7.09
    trioctyl phosphate 9.03
    1-bromopropane 11.53
    gamma-valerolactone 61.48
    n-decanol 5.48
    triethyl phosphate 23.61
    4-methyl-2-pentanol 3.12
    propionitrile 2.19
    vinylene carbonate 19.75
    1,1,2-trichlorotrifluoroethane 34.79
    DMS 16.71
    cumene 6.21
    2-octanol 7.01
    2-hexanone 15.61
    octyl acetate 15.42
    limonene 13.32
    1,2-dimethoxyethane 25.64
    ethyl orthosilicate 24.37
    tributyl phosphate 12.95
    diacetone alcohol 23.76
    N,N-dimethylaniline 13.06
    acrylonitrile 2.35
    aniline 4.03
    1,3-propanediol 1.55
    bromobenzene 12.58
    dibromomethane 23.64
    1,1,2,2-tetrachloroethane 54.65
    2-methyl-cyclohexyl acetate 34.07
    tetrabutyl urea 22.83
    diisobutyl methanol 7.33
    2-phenylethanol 6.78
    styrene 5.56
    dioctyl adipate 27.55
    dimethyl sulfate 16.74
    ethyl butyrate 26.44
    methyl lactate 5.86
    butyl lactate 27.92
    diethyl carbonate 15.24
    propanediol butyl ether 15.43
    triethyl orthoformate 31.89
    p-tert-butyltoluene 8.27
    methyl 4-tert-butylbenzoate 42.36
    morpholine 16.09
    tert-butylamine 2.85
    n-dodecanol 3.72
    dimethoxymethane 8.59
    ethylene carbonate 17.32
    cyrene 30.3
    2-ethoxyethyl acetate 37.26
    2-ethylhexyl acetate 22.43
    1,2,4-trichlorobenzene 23.01
    4-methylpyridine 11.9
    dibutyl ether 22.11
    2,6-dimethyl-4-heptanol 7.33
    DEF 16.69
    dimethyl isosorbide 79.24
    tetrachloroethylene 31.58
    eugenol 28.56
    triacetin 48.0
    span 80 26.1
    1,4-butanediol 0.95
    1,1-dichloroethane 14.49
    2-methyl-1-pentanol 4.41
    methyl formate 3.0
    2-methyl-1-butanol 2.96
    n-decane 2.73
    butyronitrile 2.89
    3,7-dimethyl-1-octanol 10.11
    1-chlorooctane 11.21
    1-chlorotetradecane 3.36
    n-nonane 2.55
    undecane 1.62
    tert-butylcyclohexane 4.15
    cyclooctane 2.8
    cyclopentanol 7.19
    tetrahydropyran 18.15
    tert-amyl methyl ether 12.66
    2,5,8-trioxanonane 48.22
    1-hexene 3.85
    2-isopropoxyethanol 7.48
    2,2,2-trifluoroethanol 3.2
    methyl butyrate 23.24

    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