Octacosane

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    630-02-4

    Molecular formula
    C28H58

    SMILES
    CCCCCCCCCCCCCCCCCCCCCCCCCCCC

  • Odor profile

    Waxy 85.99%
    Fatty 37.97%
    Oily 30.84%
    Odorless 25.03%
    Fishy 17.02%
    Meaty 14.37%
    Sweet 13.16%
    Savory 12.91%
    Burnt 11.72%
    Animal 11.06%

    Scent© AI

  • Properties

    XLogP3-AA
    14.8

    Molecular weight
    394.8 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • 148.1 °F (NTP, 1992)
    • 61.3 °C

    Boiling point

    • 808.9 °F at 760 mmHg (NTP, 1992)
    • 432 °C

    Flash point est.
    223.41 ˚C

    Solubility expt.

    • Insoluble in water
    • Miscible with acetone, soluble in benzene, chloroform

  • Synonyms

    • OCTACOSANE
    • n-Octacosane
    • 630-02-4
    • Octacosane, n-
    • CCRIS 680
    • UNII-VFF49836P8
    • VFF49836P8
    • NSC 5549
    • NSC-5549
    • EINECS 211-125-7
    • MFCD00009355
    • AI3-52615
    • DTXSID6058639
    • CHEBI:32943
    • HSDB 8358
    • CH3-[CH2]26-CH3
    • n-Octacosane 1000 microg/mL in Methanol
    • Octacosane 1000 microg/mL in Dichloromethane
    • NSC 5549; n-Octacosane
    • Octacosane, analytical standard
    • CH3-(CH2)26-CH3
    • Octacosane, 99%
    • DTXCID4032326
    • NSC5549
    • LMFA11000580
    • STL453125
    • AKOS015902504
    • HY-W272217
    • DB-054367
    • CS-0317451
    • NS00010789
    • O0002
    • D91782
    • Q3348776
    • E66BE919-93E8-4101-AB46-9612FE796394
    • 211-125-7

  • Applications

    Octacosane (CAS 630-02-4) is a straight-chain C28 alkane commonly present in paraffin/microcrystalline waxes; it is used as a phase change material for thermal energy storage thanks to a reproducible melting point around 60–63 °C and high latent heat, often blended with other paraffins or microencapsulated for thermal buffering in electronics, cold-chain packaging, and smart building materials; it serves as a reference standard for gas chromatography (Kovats retention indices) and for DSC/TGA calibration; it functions as a hydrophobic, anti-stick component in surface coatings, polishes, candles, sealants, and as a light lubricant over moderate temperatures; it is a model compound for studies of crystallization and thin-film dynamics and a geochemical marker of leaf-wax n-alkanes, and can act as an inert carrier/binder in cosmetic, hot-melt, and printing-ink formulations where chemical inertness, stability, and very low volatility are required.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 3.05
    methanol 1.86
    isopropanol 5.5
    water 0.01
    ethyl acetate 118.66
    n-propanol 7.88
    acetone 41.92
    n-butanol 13.92
    acetonitrile 7.68
    DMF 48.19
    toluene 69.84
    isobutanol 12.33
    1,4-dioxane 135.93
    methyl acetate 54.6
    THF 428.3
    2-butanone 77.8
    n-pentanol 12.89
    sec-butanol 14.95
    n-hexane 51.32
    ethylene glycol 0.31
    NMP 291.82
    cyclohexane 296.75
    DMSO 76.7
    n-butyl acetate 262.9
    n-octanol 42.03
    chloroform 337.4
    n-propyl acetate 161.65
    acetic acid 12.29
    dichloromethane 304.6
    cyclohexanone 370.02
    propylene glycol 1.2
    isopropyl acetate 166.61
    DMAc 164.42
    2-ethoxyethanol 23.5
    isopentanol 25.42
    n-heptane 175.35
    ethyl formate 31.14
    1,2-dichloroethane 212.08
    n-hexanol 23.59
    2-methoxyethanol 19.4
    isobutyl acetate 150.0
    tetrachloromethane 147.15
    n-pentyl acetate 325.65
    transcutol 275.72
    n-heptanol 35.32
    ethylbenzene 60.5
    MIBK 141.88
    2-propoxyethanol 43.8
    tert-butanol 23.59
    MTBE 112.51
    2-butoxyethanol 67.93
    propionic acid 19.29
    o-xylene 85.48
    formic acid 1.38
    diethyl ether 77.98
    m-xylene 67.07
    p-xylene 94.77
    chlorobenzene 114.33
    dimethyl carbonate 31.65
    n-octane 57.96
    formamide 2.86
    cyclopentanone 346.27
    2-pentanone 109.14
    anisole 106.06
    cyclopentyl methyl ether 365.32
    gamma-butyrolactone 280.96
    1-methoxy-2-propanol 30.57
    pyridine 114.8
    3-pentanone 130.88
    furfural 153.23
    n-dodecane 20.74
    diethylene glycol 9.24
    diisopropyl ether 104.26
    tert-amyl alcohol 43.14
    acetylacetone 171.57
    n-hexadecane 26.96
    acetophenone 138.7
    methyl propionate 82.15
    isopentyl acetate 315.0
    trichloroethylene 358.22
    n-nonanol 53.75
    cyclohexanol 70.82
    benzyl alcohol 28.05
    2-ethylhexanol 73.6
    isooctanol 53.78
    dipropyl ether 390.05
    1,2-dichlorobenzene 173.61
    ethyl lactate 45.18
    propylene carbonate 196.43
    n-methylformamide 9.94
    2-pentanol 20.61
    n-pentane 28.06
    1-propoxy-2-propanol 99.43
    1-methoxy-2-propyl acetate 237.8
    2-(2-methoxypropoxy) propanol 99.69
    mesitylene 78.57
    ε-caprolactone 331.76
    p-cymene 129.07
    epichlorohydrin 254.51
    1,1,1-trichloroethane 407.92
    2-aminoethanol 1.47
    morpholine-4-carbaldehyde 160.54
    sulfolane 555.57
    2,2,4-trimethylpentane 45.1
    2-methyltetrahydrofuran 357.81
    n-hexyl acetate 263.01
    isooctane 27.72
    2-(2-butoxyethoxy)ethanol 107.71
    sec-butyl acetate 194.17
    tert-butyl acetate 329.24
    decalin 103.62
    glycerin 2.76
    diglyme 374.93
    acrylic acid 11.56
    isopropyl myristate 152.79
    n-butyric acid 61.06
    acetyl acetate 109.0
    di(2-ethylhexyl) phthalate 63.67
    ethyl propionate 173.25
    nitromethane 35.62
    1,2-diethoxyethane 305.93
    benzonitrile 47.84
    trioctyl phosphate 56.97
    1-bromopropane 166.96
    gamma-valerolactone 314.33
    n-decanol 35.87
    triethyl phosphate 250.86
    4-methyl-2-pentanol 26.41
    propionitrile 16.43
    vinylene carbonate 117.11
    1,1,2-trichlorotrifluoroethane 137.84
    DMS 124.58
    cumene 58.89
    2-octanol 43.16
    2-hexanone 131.66
    octyl acetate 131.1
    limonene 278.16
    1,2-dimethoxyethane 153.29
    ethyl orthosilicate 276.88
    tributyl phosphate 90.91
    diacetone alcohol 134.51
    N,N-dimethylaniline 104.08
    acrylonitrile 13.37
    aniline 43.38
    1,3-propanediol 4.84
    bromobenzene 179.61
    dibromomethane 226.44
    1,1,2,2-tetrachloroethane 424.62
    2-methyl-cyclohexyl acetate 328.29
    tetrabutyl urea 143.72
    diisobutyl methanol 108.99
    2-phenylethanol 38.46
    styrene 64.11
    dioctyl adipate 200.1
    dimethyl sulfate 94.8
    ethyl butyrate 411.24
    methyl lactate 23.8
    butyl lactate 127.11
    diethyl carbonate 215.38
    propanediol butyl ether 34.58
    triethyl orthoformate 433.99
    p-tert-butyltoluene 128.5
    methyl 4-tert-butylbenzoate 222.65
    morpholine 130.08
    tert-butylamine 24.47
    n-dodecanol 27.74
    dimethoxymethane 62.96
    ethylene carbonate 124.73
    cyrene 103.66
    2-ethoxyethyl acetate 250.76
    2-ethylhexyl acetate 341.28
    1,2,4-trichlorobenzene 205.52
    4-methylpyridine 119.51
    dibutyl ether 342.39
    2,6-dimethyl-4-heptanol 108.99
    DEF 164.89
    dimethyl isosorbide 376.37
    tetrachloroethylene 255.4
    eugenol 101.29
    triacetin 274.96
    span 80 95.6
    1,4-butanediol 2.31
    1,1-dichloroethane 173.54
    2-methyl-1-pentanol 26.09
    methyl formate 11.0
    2-methyl-1-butanol 23.89
    n-decane 56.16
    butyronitrile 27.77
    3,7-dimethyl-1-octanol 77.81
    1-chlorooctane 145.85
    1-chlorotetradecane 47.79
    n-nonane 58.43
    undecane 31.31
    tert-butylcyclohexane 74.55
    cyclooctane 120.8
    cyclopentanol 61.52
    tetrahydropyran 275.13
    tert-amyl methyl ether 164.09
    2,5,8-trioxanonane 211.33
    1-hexene 58.12
    2-isopropoxyethanol 33.57
    2,2,2-trifluoroethanol 9.51
    methyl butyrate 207.46

    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

Botanical

Name CAS Botanical Proportion
Apple flower Malus arnoldiana (Rehd) Sarg. var. Redgold, fam. Rosaceae 2.87%
Seafennel 89997-98-8 Crithmum maritimum L., fam. Apiaceae (Umbelliferae) 0.64%
Rhus coriaria Rhus coriaria L., fam. Anarcadiaceae 0.15%
Sideritis condensata Sideritis condensata Boiss. et Heldr., fam. Lamiaceae (Labiatae) 0.04%
Ketaki (India) Pandanus fascicularis Lam., var. Ketaki, fam. Pandanaceae 0.01%
Mullilam leaf (India) Zanthoxylum rhetsa D.C. syn. Z. limonella (Dennst.) Alston, fam. Rutaceae 1.1%
Sage, spanish 2 8016-65-7 Salvia lavandulaefolia Vahl., fam. Lamiaceae (Labiatae) 0.3%
Rocket leaf 1 Eruca sativa L., fam. Brassicaceae 0.18%