2-Methylpentacosane

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  • Identifiers

    CAS number
    629-87-8

    Molecular formula
    C26H54

    SMILES
    CCCCCCCCCCCCCCCCCCCCCCCC(C)C

    Safety labels

  • Odor profile

    Fragrance
    Waxy 85.17%
    Fatty 38.79%
    Oily 31.89%
    Odorless 24.29%
    Fishy 18.79%
    Meaty 15.85%
    Savory 14.46%
    Burnt 13.37%
    Sweet 13.12%
    Animal 12.39%

     

    Flavor
    Alkane 56.64%
    Waxy 47.18%
    Bland 27.86%
    Mild 24.62%
    Delicate 21.44%
    Slightly waxy 21.37%
    Incense 19.41%
    Citrus peel 19.27%
    Bay oil 19.01%
    Beer 18.99%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    14.0

    pKa est.
    9.38 (weak base)

    Molecular weight
    366.7 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    427°C

    Flash point

    • 201.44 ˚C est.

  • Synonyms

    • 2-Methylpentacosane
    • 629-87-8
    • Cerane
    • Iso-hexacosane
    • Pentacosane, 2-methyl-
    • S0NEC7M413
    • UNII-S0NEC7M413
    • DTXSID60335567
    • RefChem:88355
    • DTXCID10286656
    • ZRNSSRODJSSVEJ-UHFFFAOYSA-N
    • Pentacosane, 2-methyl
    • SCHEMBL235912
    • SCHEMBL2190508
    • SCHEMBL2203056
    • SCHEMBL5986484
    • SCHEMBL7713738
    • SCHEMBL11225631
    • LMFA11000351
    • Q27894183
    • 629-87-8

  • Applications

    2-Methylpentacosane (CAS 629-87-8) is a high-molecular-weight saturated hydrocarbon, a long-chain paraffin, used where waxy, nonpolar components are required. In cosmetics and personal care, it functions as a waxy thickener and slip agent, helping to shape texture in products such as creams and lip care. In perfumery, it may serve as a fragrance fixative and carrier, reducing volatility of aroma compounds. In coatings, inks and plastics, it acts as a wax-like additive to modify rheology, improve gloss and water resistance. In industrial manufacturing, it can be used as a processing aid or base component in lubricant formulations and specialty wax blends.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 7.6
    methanol 3.45
    isopropanol 14.51
    water 0.0
    ethyl acetate 243.72
    n-propanol 18.72
    acetone 89.62
    n-butanol 34.75
    acetonitrile 14.16
    DMF 79.35
    toluene 156.71
    isobutanol 29.63
    1,4-dioxane 261.12
    methyl acetate 99.42
    THF 813.16
    2-butanone 164.88
    n-pentanol 30.11
    sec-butanol 37.58
    n-hexane 128.65
    ethylene glycol 0.45
    NMP 411.89
    cyclohexane 667.8
    DMSO 113.54
    n-butyl acetate 558.08
    n-octanol 84.82
    chloroform 570.59
    n-propyl acetate 318.59
    acetic acid 19.84
    dichloromethane 510.99
    cyclohexanone 687.17
    propylene glycol 2.11
    isopropyl acetate 360.79
    DMAc 248.15
    2-ethoxyethanol 45.27
    isopentanol 63.06
    n-heptane 409.32
    ethyl formate 56.69
    1,2-dichloroethane 374.73
    n-hexanol 59.71
    2-methoxyethanol 37.0
    isobutyl acetate 311.96
    tetrachloromethane 253.16
    n-pentyl acetate 580.52
    transcutol 494.7
    n-heptanol 74.07
    ethylbenzene 129.32
    MIBK 308.84
    2-propoxyethanol 92.91
    tert-butanol 60.67
    MTBE 273.55
    2-butoxyethanol 125.36
    propionic acid 32.04
    o-xylene 172.42
    formic acid 1.59
    diethyl ether 197.48
    m-xylene 144.82
    p-xylene 196.67
    chlorobenzene 211.82
    dimethyl carbonate 49.34
    n-octane 120.31
    formamide 3.46
    cyclopentanone 609.67
    2-pentanone 240.99
    anisole 208.8
    cyclopentyl methyl ether 729.4
    gamma-butyrolactone 442.21
    1-methoxy-2-propanol 63.05
    pyridine 203.78
    3-pentanone 265.75
    furfural 225.79
    n-dodecane 41.87
    diethylene glycol 17.56
    diisopropyl ether 253.62
    tert-amyl alcohol 101.53
    acetylacetone 322.25
    n-hexadecane 54.34
    acetophenone 243.03
    methyl propionate 154.76
    isopentyl acetate 665.63
    trichloroethylene 598.72
    n-nonanol 106.26
    cyclohexanol 158.85
    benzyl alcohol 54.48
    2-ethylhexanol 172.36
    isooctanol 113.24
    dipropyl ether 857.03
    1,2-dichlorobenzene 294.55
    ethyl lactate 77.22
    propylene carbonate 320.32
    n-methylformamide 15.26
    2-pentanol 55.33
    n-pentane 73.85
    1-propoxy-2-propanol 208.94
    1-methoxy-2-propyl acetate 470.27
    2-(2-methoxypropoxy) propanol 178.86
    mesitylene 161.6
    ε-caprolactone 577.09
    p-cymene 264.3
    epichlorohydrin 444.73
    1,1,1-trichloroethane 743.36
    2-aminoethanol 2.47
    morpholine-4-carbaldehyde 254.24
    sulfolane 773.58
    2,2,4-trimethylpentane 98.38
    2-methyltetrahydrofuran 723.17
    n-hexyl acetate 492.59
    isooctane 67.15
    2-(2-butoxyethoxy)ethanol 194.97
    sec-butyl acetate 404.17
    tert-butyl acetate 675.85
    decalin 214.98
    glycerin 4.43
    diglyme 640.05
    acrylic acid 17.05
    isopropyl myristate 301.62
    n-butyric acid 117.06
    acetyl acetate 192.54
    di(2-ethylhexyl) phthalate 111.78
    ethyl propionate 340.59
    nitromethane 52.99
    1,2-diethoxyethane 589.62
    benzonitrile 86.22
    trioctyl phosphate 105.01
    1-bromopropane 353.92
    gamma-valerolactone 518.56
    n-decanol 72.67
    triethyl phosphate 420.23
    4-methyl-2-pentanol 67.87
    propionitrile 33.86
    vinylene carbonate 173.87
    1,1,2-trichlorotrifluoroethane 203.57
    DMS 205.87
    cumene 121.99
    2-octanol 87.38
    2-hexanone 277.96
    octyl acetate 256.7
    limonene 578.49
    1,2-dimethoxyethane 286.82
    ethyl orthosilicate 473.91
    tributyl phosphate 157.19
    diacetone alcohol 277.65
    N,N-dimethylaniline 195.57
    acrylonitrile 24.08
    aniline 84.79
    1,3-propanediol 9.75
    bromobenzene 331.79
    dibromomethane 395.0
    1,1,2,2-tetrachloroethane 713.18
    2-methyl-cyclohexyl acetate 613.18
    tetrabutyl urea 245.31
    diisobutyl methanol 244.54
    2-phenylethanol 77.12
    styrene 132.59
    dioctyl adipate 359.2
    dimethyl sulfate 129.64
    ethyl butyrate 811.73
    methyl lactate 39.05
    butyl lactate 217.76
    diethyl carbonate 407.77
    propanediol butyl ether 62.18
    triethyl orthoformate 798.78
    p-tert-butyltoluene 267.2
    methyl 4-tert-butylbenzoate 375.87
    morpholine 258.28
    tert-butylamine 64.24
    n-dodecanol 57.62
    dimethoxymethane 115.88
    ethylene carbonate 193.96
    cyrene 160.58
    2-ethoxyethyl acetate 429.84
    2-ethylhexyl acetate 694.23
    1,2,4-trichlorobenzene 332.56
    4-methylpyridine 228.47
    dibutyl ether 675.42
    2,6-dimethyl-4-heptanol 244.54
    DEF 314.92
    dimethyl isosorbide 592.57
    tetrachloroethylene 404.14
    eugenol 161.66
    triacetin 450.38
    span 80 174.17
    1,4-butanediol 4.11
    1,1-dichloroethane 342.47
    2-methyl-1-pentanol 61.09
    methyl formate 16.2
    2-methyl-1-butanol 56.37
    n-decane 113.04
    butyronitrile 62.98
    3,7-dimethyl-1-octanol 165.14
    1-chlorooctane 286.37
    1-chlorotetradecane 97.23
    n-nonane 119.62
    undecane 62.53
    tert-butylcyclohexane 160.07
    cyclooctane 262.34
    cyclopentanol 123.06
    tetrahydropyran 601.38
    tert-amyl methyl ether 359.11
    2,5,8-trioxanonane 353.7
    1-hexene 146.68
    2-isopropoxyethanol 66.35
    2,2,2-trifluoroethanol 12.44
    methyl butyrate 396.2

    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