Delta-palmitolactone

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  • Identifiers

    CAS number
    7370-44-7

    Molecular formula
    C16H30O2

    SMILES
    CCCCCCCCCCCC1CCCC(=O)O1

  • Odor profile

    Fragrance
    Fatty 86.82%
    Waxy 73.95%
    Creamy 62.35%
    Oily 56.23%
    Dairy 55.92%
    Buttery 51.25%
    Milky 49.76%
    Sweet 48.76%
    Coconut 44.13%
    Peach 41.59%

     

    Flavor
    Fatty 73.19%
    Waxy 70.25%
    Creamy 67.96%
    Coconut 62.76%
    Sweet 60.98%
    Fruity 60.53%
    Peach 59.38%
    Oily 54.13%
    Fat 41.59%
    Dairy 40.71%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    5.8

    pKa est.
    7.31 (neutral)

    Molecular weight
    254.41 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    349°C

    Flash point

    • 143.61 ˚C est.

  • Synonyms

    • 7370-44-7
    • 6-undecyloxan-2-one
    • Tetrahydro-6-undecyl-2H-pyran-2-one
    • 5-Hexadecanolide
    • 2H-Pyran-2-one,tetrahydro-6-undecyl-
    • Hexadecalactone
    • delta-hexadecalactone
    • .delta.-hexadecalactone
    • 2H-Pyran-2-one, tetrahydro-6-undecyl-
    • 6-undecyltetrahydro-2h-pyran-2-one
    • VC86OQ26NU
    • 6-UNDECYLTETRAHYDROPYRAN-2-ONE
    • .DELTA.-HEXADECANOLIDE
    • .DELTA.-PALMITOLACTONE
    • FEMA NO. 4673
    • 5-HYDROXYHEXADECANOIC ACID DELTA LACTONE
    • n-Hexadecalactone
    • 5-HYDROXYHEXADECANOIC ACID DELTA LACTONE 6-UNDECYLTETRAHYDRO-2H-PYRAN-2-ONE
    • Delta-palmitolactone
    • EINECS 230-924-1
    • DELTA-HEXADECANOLIDE
    • UNII-VC86OQ26NU
    • SCHEMBL1744226
    • DTXSID40864047
    • CHEBI:179820
    • HAA37044
    • LMFA07040055
    • AKOS027324552
    • AS-78271
    • NS00043796
    • D93244
    • 230-924-1

  • Applications

    Delta-palmitolactone (CAS 7370-44-7) is used primarily as a fragrance ingredient and odorant in perfumery and cosmetics, where it can contribute to aroma profiles and may act as a low-volatility fixative. It is commonly evaluated as an intermediate in the synthesis of fragrance compounds and can serve as a building block or processing additive in polymers and coatings. In cosmetics and personal care, it may appear as a fragrance component in lotions, creams, and cleansers. In industrial manufacturing, coatings and inks, it can be used as a specialty monomer or additive to tailor polymer properties and odor characteristics. Its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1013.25
    methanol 746.09
    isopropanol 1249.95
    water 0.02
    ethyl acetate 2725.57
    n-propanol 1101.96
    acetone 2975.62
    n-butanol 1197.23
    acetonitrile 1161.3
    DMF 2032.86
    toluene 996.13
    isobutanol 985.4
    1,4-dioxane 2158.24
    methyl acetate 1568.39
    THF 4116.35
    2-butanone 2508.25
    n-pentanol 782.38
    sec-butanol 1134.3
    n-hexane 359.12
    ethylene glycol 32.75
    NMP 2153.73
    cyclohexane 761.92
    DMSO 2318.14
    n-butyl acetate 2400.19
    n-octanol 426.06
    chloroform 4685.27
    n-propyl acetate 2375.33
    acetic acid 650.67
    dichloromethane 4764.66
    cyclohexanone 4639.55
    propylene glycol 121.67
    isopropyl acetate 2181.55
    DMAc 1893.17
    2-ethoxyethanol 962.87
    isopentanol 1277.97
    n-heptane 186.16
    ethyl formate 1084.07
    1,2-dichloroethane 3450.49
    n-hexanol 745.22
    2-methoxyethanol 1270.72
    isobutyl acetate 1378.12
    tetrachloromethane 760.03
    n-pentyl acetate 1818.42
    transcutol 4315.16
    n-heptanol 385.98
    ethylbenzene 567.02
    MIBK 1712.1
    2-propoxyethanol 1215.59
    tert-butanol 1523.64
    MTBE 2384.18
    2-butoxyethanol 864.64
    propionic acid 825.34
    o-xylene 624.13
    formic acid 80.2
    diethyl ether 2466.11
    m-xylene 657.13
    p-xylene 778.07
    chlorobenzene 1601.71
    dimethyl carbonate 367.59
    n-octane 70.38
    formamide 180.77
    cyclopentanone 3747.31
    2-pentanone 2771.81
    anisole 1030.61
    cyclopentyl methyl ether 2490.39
    gamma-butyrolactone 3197.08
    1-methoxy-2-propanol 1310.99
    pyridine 2723.63
    3-pentanone 1671.27
    furfural 2108.55
    n-dodecane 46.26
    diethylene glycol 416.12
    diisopropyl ether 802.83
    tert-amyl alcohol 1261.13
    acetylacetone 2337.62
    n-hexadecane 59.09
    acetophenone 1066.45
    methyl propionate 1499.08
    isopentyl acetate 2091.11
    trichloroethylene 4932.8
    n-nonanol 393.89
    cyclohexanol 1605.2
    benzyl alcohol 659.39
    2-ethylhexanol 660.24
    isooctanol 403.62
    dipropyl ether 1406.12
    1,2-dichlorobenzene 1486.01
    ethyl lactate 519.9
    propylene carbonate 1783.88
    n-methylformamide 762.86
    2-pentanol 998.18
    n-pentane 223.33
    1-propoxy-2-propanol 1245.49
    1-methoxy-2-propyl acetate 1691.58
    2-(2-methoxypropoxy) propanol 753.88
    mesitylene 479.64
    ε-caprolactone 3349.31
    p-cymene 370.5
    epichlorohydrin 3543.09
    1,1,1-trichloroethane 3271.91
    2-aminoethanol 186.24
    morpholine-4-carbaldehyde 1927.52
    sulfolane 3405.47
    2,2,4-trimethylpentane 115.97
    2-methyltetrahydrofuran 3555.01
    n-hexyl acetate 1830.87
    isooctane 93.93
    2-(2-butoxyethoxy)ethanol 1134.04
    sec-butyl acetate 1641.28
    tert-butyl acetate 2182.96
    decalin 254.2
    glycerin 155.68
    diglyme 2329.34
    acrylic acid 425.58
    isopropyl myristate 589.0
    n-butyric acid 2118.73
    acetyl acetate 1339.05
    di(2-ethylhexyl) phthalate 398.86
    ethyl propionate 1776.51
    nitromethane 1565.61
    1,2-diethoxyethane 2276.72
    benzonitrile 1225.28
    trioctyl phosphate 307.26
    1-bromopropane 2446.31
    gamma-valerolactone 4072.05
    n-decanol 262.71
    triethyl phosphate 548.71
    4-methyl-2-pentanol 581.36
    propionitrile 1344.07
    vinylene carbonate 1383.07
    1,1,2-trichlorotrifluoroethane 1623.85
    DMS 960.57
    cumene 377.13
    2-octanol 374.35
    2-hexanone 1920.82
    octyl acetate 701.8
    limonene 712.95
    1,2-dimethoxyethane 2389.04
    ethyl orthosilicate 537.23
    tributyl phosphate 457.19
    diacetone alcohol 1468.82
    N,N-dimethylaniline 615.03
    acrylonitrile 1205.53
    aniline 1000.48
    1,3-propanediol 488.53
    bromobenzene 1971.54
    dibromomethane 3392.32
    1,1,2,2-tetrachloroethane 4273.84
    2-methyl-cyclohexyl acetate 1038.03
    tetrabutyl urea 589.85
    diisobutyl methanol 434.87
    2-phenylethanol 658.56
    styrene 786.62
    dioctyl adipate 835.43
    dimethyl sulfate 611.72
    ethyl butyrate 1788.28
    methyl lactate 423.35
    butyl lactate 915.7
    diethyl carbonate 903.98
    propanediol butyl ether 633.4
    triethyl orthoformate 1061.24
    p-tert-butyltoluene 342.31
    methyl 4-tert-butylbenzoate 880.63
    morpholine 3022.81
    tert-butylamine 1019.66
    n-dodecanol 192.17
    dimethoxymethane 1362.38
    ethylene carbonate 1430.12
    cyrene 590.56
    2-ethoxyethyl acetate 1759.94
    2-ethylhexyl acetate 1627.18
    1,2,4-trichlorobenzene 1657.86
    4-methylpyridine 2573.97
    dibutyl ether 1464.58
    2,6-dimethyl-4-heptanol 434.87
    DEF 2511.9
    dimethyl isosorbide 1369.24
    tetrachloroethylene 2599.79
    eugenol 664.5
    triacetin 1317.04
    span 80 766.16
    1,4-butanediol 175.45
    1,1-dichloroethane 3507.99
    2-methyl-1-pentanol 762.9
    methyl formate 443.24
    2-methyl-1-butanol 1077.73
    n-decane 99.43
    butyronitrile 1750.99
    3,7-dimethyl-1-octanol 533.53
    1-chlorooctane 527.4
    1-chlorotetradecane 169.45
    n-nonane 99.99
    undecane 63.48
    tert-butylcyclohexane 193.67
    cyclooctane 188.57
    cyclopentanol 1454.57
    tetrahydropyran 3926.9
    tert-amyl methyl ether 1526.42
    2,5,8-trioxanonane 1300.24
    1-hexene 1159.5
    2-isopropoxyethanol 869.5
    2,2,2-trifluoroethanol 196.77
    methyl butyrate 2583.2

    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