Tricosane

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  • Identifiers

    CAS number
    638-67-5

    Molecular formula
    C23H48

    SMILES
    CCCCCCCCCCCCCCCCCCCCCCC

    Retention indicies (RI)

    • DB5: 2300.0
    • Carbowax: 2300.0

  • Odor profile

    Waxy 85.04%
    Fatty 36.16%
    Oily 30.99%
    Odorless 23.96%
    Fishy 17.15%
    Sweet 15.91%
    Meaty 14.93%
    Gassy 13.75%
    Savory 13.03%
    Burnt 12.2%

    Scent© AI

  • Properties

    XLogP3-AA
    12.1

    Molecular weight
    324.6 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • 117.7 °F (NTP, 1992)
    • 47.4 °C

    Boiling point

    • 716.4 °F at 760 mmHg (NTP, 1992)
    • 381 °C
    • BP: 199-200 °C at 4 mm Hg

    Flash point est.
    183.88 ˚C

    Flash point expt.

    • 113 °C (235 °F) - closed cup

    Solubility expt.

    • Insoluble in water
    • Soluble in alcohol
    • Slightyl soluble in ethanol; soluble in ethyl ether, carbon tetrachloride

  • Synonyms

    • TRICOSANE
    • n-Tricosane
    • 638-67-5
    • UNII-T166B8R1VC
    • MFCD00009350
    • T166B8R1VC
    • EINECS 211-347-4
    • NSC 78487
    • NSC-78487
    • AI3-35917
    • Docosane, methyl-
    • DTXSID7047699
    • CHEBI:32934
    • HSDB 8353
    • CH3-[CH2]21-CH3
    • Tricosane, analytical standard
    • CH3-(CH2)21-CH3
    • Tricosan
    • Tricosane, 99%
    • DTXCID5027697
    • NSC78487
    • LMFA11000589
    • AKOS015843179
    • Tricosane; NSC 78487; n-Tricosane
    • HY-W130307
    • AS-56122
    • DB-054568
    • CS-0188393
    • NS00010794
    • T0568
    • TRICOSANE [STANDARD MATERIAL FOR GC]
    • C17433
    • T72756
    • Q150977
    • D3CD819C-C009-4DE8-8A12-BEFA098575B2
    • 211-347-4

  • Applications

    Tricosane (CAS 638-67-5) is a straight-chain C23H48 waxy solid with a melting point around 47–49 °C and is widely used as a phase-change material (PCM) for thermal energy storage and temperature regulation in paints, plasters, building materials, microencapsulated textiles, packaging, and electronics operating near this range; it serves as a component in paraffin-wax blends to tune hardness, softening point, and gloss for candles, polishes, moisture-barrier and corrosion-protective coatings, and as a dry/grease lubricant and mold-release agent for plastics and rubber; analytically, it is an n-alkane reference for GC/GC-MS retention index and time calibration and is used as an internal/benchmark standard in petroleum, polymer, and environmental analyses; in R&D it acts as a model compound for crystallization kinetics, phase behavior, and thermal analysis (DSC), as a reference or component in studies of surface hydrocarbons in biology (e.g., insects), and as an inert hydrophobic phase for materials testing and for microencapsulation and wax-polymer composite systems.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 11.94
    methanol 5.61
    isopropanol 25.34
    water 0.0
    ethyl acetate 395.58
    n-propanol 31.25
    acetone 154.28
    n-butanol 56.25
    acetonitrile 28.61
    DMF 137.61
    toluene 257.15
    isobutanol 48.16
    1,4-dioxane 424.41
    methyl acetate 166.47
    THF 1292.33
    2-butanone 260.49
    n-pentanol 48.76
    sec-butanol 60.47
    n-hexane 248.89
    ethylene glycol 0.81
    NMP 596.72
    cyclohexane 1297.95
    DMSO 193.0
    n-butyl acetate 941.56
    n-octanol 123.45
    chloroform 828.91
    n-propyl acetate 506.56
    acetic acid 30.8
    dichloromethane 779.88
    cyclohexanone 1040.16
    propylene glycol 3.44
    isopropyl acetate 547.28
    DMAc 350.65
    2-ethoxyethanol 67.5
    isopentanol 102.42
    n-heptane 862.2
    ethyl formate 95.09
    1,2-dichloroethane 641.18
    n-hexanol 102.36
    2-methoxyethanol 58.75
    isobutyl acetate 458.02
    tetrachloromethane 382.91
    n-pentyl acetate 819.32
    transcutol 683.5
    n-heptanol 110.79
    ethylbenzene 216.4
    MIBK 478.62
    2-propoxyethanol 144.99
    tert-butanol 105.71
    MTBE 437.65
    2-butoxyethanol 175.85
    propionic acid 52.95
    o-xylene 280.29
    formic acid 2.29
    diethyl ether 370.98
    m-xylene 232.78
    p-xylene 326.5
    chlorobenzene 334.5
    dimethyl carbonate 79.0
    n-octane 214.85
    formamide 5.44
    cyclopentanone 944.71
    2-pentanone 395.86
    anisole 327.02
    cyclopentyl methyl ether 1132.56
    gamma-butyrolactone 698.03
    1-methoxy-2-propanol 96.47
    pyridine 351.91
    3-pentanone 421.36
    furfural 347.13
    n-dodecane 68.7
    diethylene glycol 28.52
    diisopropyl ether 408.45
    tert-amyl alcohol 162.04
    acetylacetone 486.45
    n-hexadecane 89.66
    acetophenone 373.65
    methyl propionate 241.36
    isopentyl acetate 999.5
    trichloroethylene 940.3
    n-nonanol 152.36
    cyclohexanol 253.04
    benzyl alcohol 85.16
    2-ethylhexanol 287.36
    isooctanol 164.09
    dipropyl ether 1568.64
    1,2-dichlorobenzene 442.11
    ethyl lactate 115.23
    propylene carbonate 471.99
    n-methylformamide 26.19
    2-pentanol 91.86
    n-pentane 146.64
    1-propoxy-2-propanol 319.98
    1-methoxy-2-propyl acetate 683.06
    2-(2-methoxypropoxy) propanol 234.59
    mesitylene 254.56
    ε-caprolactone 822.56
    p-cymene 408.87
    epichlorohydrin 683.87
    1,1,1-trichloroethane 1126.81
    2-aminoethanol 4.24
    morpholine-4-carbaldehyde 380.77
    sulfolane 1157.03
    2,2,4-trimethylpentane 146.93
    2-methyltetrahydrofuran 1114.42
    n-hexyl acetate 682.34
    isooctane 107.95
    2-(2-butoxyethoxy)ethanol 264.93
    sec-butyl acetate 590.32
    tert-butyl acetate 928.54
    decalin 346.99
    glycerin 6.86
    diglyme 880.29
    acrylic acid 28.05
    isopropyl myristate 416.96
    n-butyric acid 178.47
    acetyl acetate 296.65
    di(2-ethylhexyl) phthalate 156.83
    ethyl propionate 529.05
    nitromethane 86.55
    1,2-diethoxyethane 917.29
    benzonitrile 144.38
    trioctyl phosphate 152.88
    1-bromopropane 607.59
    gamma-valerolactone 739.6
    n-decanol 108.04
    triethyl phosphate 587.94
    4-methyl-2-pentanol 105.97
    propionitrile 66.7
    vinylene carbonate 259.23
    1,1,2-trichlorotrifluoroethane 300.05
    DMS 313.84
    cumene 191.52
    2-octanol 131.99
    2-hexanone 431.57
    octyl acetate 365.81
    limonene 886.24
    1,2-dimethoxyethane 452.93
    ethyl orthosilicate 649.93
    tributyl phosphate 228.41
    diacetone alcohol 398.83
    N,N-dimethylaniline 300.81
    acrylonitrile 46.12
    aniline 137.17
    1,3-propanediol 15.19
    bromobenzene 516.74
    dibromomethane 624.85
    1,1,2,2-tetrachloroethane 1081.62
    2-methyl-cyclohexyl acetate 849.13
    tetrabutyl urea 348.4
    diisobutyl methanol 397.2
    2-phenylethanol 122.79
    styrene 226.78
    dioctyl adipate 487.75
    dimethyl sulfate 191.14
    ethyl butyrate 1249.07
    methyl lactate 59.58
    butyl lactate 296.91
    diethyl carbonate 625.8
    propanediol butyl ether 84.19
    triethyl orthoformate 1156.03
    p-tert-butyltoluene 407.86
    methyl 4-tert-butylbenzoate 482.38
    morpholine 406.63
    tert-butylamine 118.1
    n-dodecanol 87.28
    dimethoxymethane 192.88
    ethylene carbonate 302.79
    cyrene 217.93
    2-ethoxyethyl acetate 612.34
    2-ethylhexyl acetate 1029.39
    1,2,4-trichlorobenzene 495.32
    4-methylpyridine 373.45
    dibutyl ether 1037.25
    2,6-dimethyl-4-heptanol 397.2
    DEF 511.38
    dimethyl isosorbide 796.32
    tetrachloroethylene 629.37
    eugenol 221.95
    triacetin 596.22
    span 80 240.11
    1,4-butanediol 6.66
    1,1-dichloroethane 551.98
    2-methyl-1-pentanol 93.85
    methyl formate 28.06
    2-methyl-1-butanol 88.98
    n-decane 185.55
    butyronitrile 117.14
    3,7-dimethyl-1-octanol 237.45
    1-chlorooctane 427.64
    1-chlorotetradecane 151.58
    n-nonane 199.18
    undecane 102.88
    tert-butylcyclohexane 257.22
    cyclooctane 467.62
    cyclopentanol 202.98
    tetrahydropyran 986.54
    tert-amyl methyl ether 520.85
    2,5,8-trioxanonane 493.34
    1-hexene 265.99
    2-isopropoxyethanol 100.37
    2,2,2-trifluoroethanol 18.39
    methyl butyrate 627.15

    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
Cassie absolute (blossom) 8023-82-3 Acacia farnesiana (L.) Willd., fam. Mimosaceae (Leguminosae) 0.18%
Genet absolute 1 8023-80-1 Spartium junceum L., fam. Leguminosae (Papilionaceae) 0.11%
Apple flower Malus arnoldiana (Rehd) Sarg. var. Redgold, fam. Rosaceae 9.32%
Seafennel 89997-98-8 Crithmum maritimum L., fam. Apiaceae (Umbelliferae) 0.26%
Daphne genkwa Daphne genkwa Sieb. et Zucc., fam. Thymelaeaceae 0.01%
Geranium (Bulgaria) 8000-46-2 Pelargonium graveolens l'Herit. ex Aiton, fam. Geraniaceae 0.52%
Lanyana (Zimbabwe) Artemisia afra Jacq., fam. Asteraceae (Compositae) 13.92%
Rosa centifolia (Poland) Rosa centifolia L., fam. Rosaceae 2.94%
Nicotiana rustica flower Nicotiana rustica L, subgenus Rustica, var. brasilia, fam. Solanaceae 0.32%
Nicotiana forgetiana flower Nicotiana forgetiana Hort. ex Hensley (subgenus Petunioides), Solanaceae 8.16%
Micromeria carminea (Turkey) Micromeria carminea P.H. Davis (syn.M.cristata), fam. Lamiaceae (Labiatae) 0.16%
Alseuosmia macrophylla Alseuosmia macrophylla A. Cunn, fam. Alseuosmiaceae 2.8%
Fagraea berteriana flower Fagraea berteriana A. Gray ex Benth., fam. Potaliaceae 2.47%
Rhubarb root Rheum palmatum L., fam. Polygonaceae 0.01%
Boronia megastigma 91771-36-7 Boronia megastigma Nees., fam. Rutaceae 0.03%
Keora (India) 3 Pandanus odoratissimus L. (P. fascicularis Lam.), fam. Pandanaceae 0.5%
Wiedemannia orientalis Wiedemannia orientalis Fisch. et Mey., fam. Lamiaceae (Labiatae) 0.1%
Sideritis condensata Sideritis condensata Boiss. et Heldr., fam. Lamiaceae (Labiatae) 0.1%
Acacia confusa flower (China) Acacia confusa Merr., fam. Mimosaceae (Leguminosae) 2.59%
Narcissus tazetta (var. chinensis) 8023-75-4 Narcissus tazetta L., var. chinensis, fam. Amaryllidaceae 0.84%
Calamus (China) 1a leaf 8015-79-0 Acorus calamus L., fam. Araceae 0.1%
Rose (Turkey) 4 8007-01-7 Rosa damascena Mill., fam. Rosaceae 0.55%
Rosa rugosa (China) 1 Rosa rugosa Thunb. (hybrids), fam. Rosaceae 1.2%
Rose (India) 1 8007-01-7 Rosa damascena Mill., fam. Rosaceae 1.69%
Rose (Turkey) 5 8007-01-0 Rosa damascena Mill., fam. Rosaceae 1.0%
Keora (India) 4 Pandanus odoratissimus L. (P. fascicularis Lam.), fam. Pandanaceae 0.21%
Keora (India) 2 Pandanus odoratissimus L. (P. fascicularis Lam.), fam. Pandanaceae 0.07%
Rose (Bulgaria) 4a 8007-01-0 Rosa damascena Mill., fam. Rosaceae 0.9%
Rose (Bulgaria) 4b 8007-01-0 Rosa damascena Mill., fam. Rosaceae 1.1%
Rose (Bulgaria) 4c 8007-01-0 Rosa damascena Mill., fam. Rosaceae 7.0%
Basil (Australia) 2a cultivar Reunion 8015-73-4 Ocimum basilicum L. cultivar Reunion, fam. Lamiaceae (Labiatae) 0.25%
Basil (Australia) 2b cultivar Cinnamon 8015-73-4 Ocimum basilicum L. cultivar Cinnamon, fam. Lamiaceae (Labiatae) 0.1%
Basil (Australia) 2c cultivar Anise 8015-73-4 Ocimum basilicum L. cultivar Anise, fam. Lamiaceae (Labiatae) 0.4%
Basil (Australia) 2d cultivar Dark opal 8015-73-4 Ocimum basilicum L. cultivar Dark opal, fam. Lamiaceae (Labiatae) 0.15%
Basil (Australia) 2e cultivar Bush 8015-73-4 Ocimum basilicum L. cultivar Bush, fam. Lamiaceae (Labiatae) 0.35%
Origanum husnuca-baserii (Turkey) Origanum husnucan-baserii H. Duman, Z. Aytac et A. Duran, fam. Lamiaceae 0.09%
Premna serratifolia flower bud Premna serratifolia L. (P.obtusifolia Br.R., P.taitensis Sch.),Verbenaceae 0.05%
Bifora radians (Turkey) Bifora radians Bieb., fam. Apiaceae (Umbelliferae) 0.07%
Clary sage (Hungary) 1a 8016-63-5 Salvia sclarea L., fam. Lamiaceae (Labiatae) 4.0%
Clary sage (Hungary) 1b 8016-63-5 Salvia sclarea L., fam. Lamiaceae (Labiatae) 2.7%
Couroupita guianensis flower (Brazil) Couroupita guainensis Auble., fam. Lecythidaceae 1.7%
Kewda (India) Pandanus fascicularis Lam., var. fascilarris, fam. Pandanaceae 0.02%
Mullilam leaf (India) Zanthoxylum rhetsa D.C. syn. Z. limonella (Dennst.) Alston, fam. Rutaceae 0.3%
Rosemary (Morocco) 2 8000-25-7 Rosmarinus officinalis L., fam. Lamiaceae (Labiatae) 0.05%
Acacia caven flower Acacia caven (Mol.) Mol., fam. Mimosaceae (Leguminosae) 7.7%
Nepeta betonicifolia (Turkey) Nepeta betonicifolia C.A. Meyer, fam. Lamiaceae (Labiatae) 0.7%
Anthoxanthum odoratum (Italy) 1a fresh leaf Anthoxanthum odoratum L., fam. Poaceae (Gramineae) 0.2%
Anthoxanthum odoratum (Italy) 1b hay Anthoxanthum odoratum L., fam. Poaceae (Gramineae) 0.5%
Carapa guianensis Carapa guianensis Aubl., fam. Meliaceae 0.1%
Carrot umbel (Poland) 8015-88-1 Daucus carota L. ssp. carota, fam. Apiaceae (Umbelliferae) 0.05%