Pyridoxine dipalmitate

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  • Identifiers

    CAS number
    31229-74-0

    Molecular formula
    C38H67NO5

    SMILES
    CCCCCCCCCCCCCCCC(=O)OC1=CN=C(C(=C1OC(=O)CCCCCCCCCCCCCCC)O)C

    Safety labels

  • Odor profile

    Fragrance
    Waxy 67.07%
    Fatty 52.38%
    Odorless 42.94%
    Oily 36.85%
    Creamy 23.63%
    Milky 21.4%
    Dairy 20.92%
    Balsamic 20.84%
    Savory 18.76%
    Animal 18.68%

     

    Flavor
    Bland 40.67%
    Mild 38.22%
    Fatty 37.27%
    Waxy 36.21%
    Faint 31.54%
    Odorless 31.51%
    Oily 31.41%
    Slightly waxy 24.39%
    Fat 23.55%
    Bay oil 22.62%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    15.1

    pKa est.
    9.38 (weak base)

    Molecular weight
    617.9 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    681°C

    Flash point

    • 247.06 ˚C est.

  • Synonyms

    • HB49XCT029
    • UNII-HB49XCT029
    • Palmitic acid, diester with pyridoxol
    • 5-Hydroxy-6-methyl-3,4-pyridinedimethanol dipalmitate
    • Hexadecanoic acid, (5-hydroxy-6-methyl-3,4-pyridinediyl)bis(methylene) ester
    • PYRIDOXINE DIPALMITATE [WHO-DD]
    • RefChem:177734
    • DTXSID701015766
    • PYRIDOXINE DIPALMITATE [INCI]
    • 31229-74-0
    • 635-38-1
    • PYRIDOXINE DIPALMITATE
    • Vitamin B6 dipalmitate
    • (4-hexadecanoyloxy-5-hydroxy-6-methylpyridin-3-yl) hexadecanoate
    • Q27279834
    • 635-38-1

  • Applications

    Pyridoxine dipalmitate (CAS 31229-74-0) is a palmitate ester of pyridoxine (vitamin B6) commonly used as a lipid-soluble form in diverse formulations. In cosmetics and personal care, it serves as a conditioning and vitamin B6 source for creams, lotions, and oils, helping improve skin feel and delivering vitamin B6 at the surface. In pharmaceutical topical formulations, it can function as a vitamin B6 source and carrier in lipid-based systems, and as an excipient contributing to formulation stability. In nutraceuticals and dietary supplements, it may be used as a lipid-soluble B6 source in lipid-based or matrix products. In industrial manufacturing, pyridoxine dipalmitate can act as an intermediate in the synthesis of other pyridoxine esters and related compounds for downstream chemical development.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 56.16
    methanol 68.06
    isopropanol 63.7
    water 5.35
    ethyl acetate 588.26
    n-propanol 89.96
    acetone 427.38
    n-butanol 78.9
    acetonitrile 206.59
    DMF 602.98
    toluene 241.36
    isobutanol 77.32
    1,4-dioxane 337.63
    methyl acetate 535.74
    THF 848.41
    2-butanone 483.36
    n-pentanol 69.02
    sec-butanol 106.79
    n-hexane 27.64
    ethylene glycol 15.22
    NMP 1977.18
    cyclohexane 85.71
    DMSO 687.61
    n-butyl acetate 283.68
    n-octanol 65.19
    chloroform 1136.79
    n-propyl acetate 351.59
    acetic acid 445.03
    dichloromethane 1344.94
    cyclohexanone 1014.25
    propylene glycol 31.05
    isopropyl acetate 400.83
    DMAc 1508.86
    2-ethoxyethanol 159.29
    isopentanol 76.57
    n-heptane 19.55
    ethyl formate 270.51
    1,2-dichloroethane 840.2
    n-hexanol 54.42
    2-methoxyethanol 187.25
    isobutyl acetate 194.93
    tetrachloromethane 354.3
    n-pentyl acetate 421.12
    transcutol 513.78
    n-heptanol 66.92
    ethylbenzene 114.22
    MIBK 236.88
    2-propoxyethanol 147.74
    tert-butanol 94.12
    MTBE 197.47
    2-butoxyethanol 193.46
    propionic acid 350.5
    o-xylene 198.87
    formic acid 119.69
    diethyl ether 182.89
    m-xylene 146.7
    p-xylene 163.69
    chlorobenzene 456.94
    dimethyl carbonate 408.27
    n-octane 12.88
    formamide 254.41
    cyclopentanone 1255.18
    2-pentanone 405.77
    anisole 216.79
    cyclopentyl methyl ether 502.61
    gamma-butyrolactone 1664.46
    1-methoxy-2-propanol 190.24
    pyridine 633.43
    3-pentanone 485.47
    furfural 923.9
    n-dodecane 7.09
    diethylene glycol 71.35
    diisopropyl ether 79.53
    tert-amyl alcohol 153.67
    acetylacetone 720.72
    n-hexadecane 8.43
    acetophenone 364.9
    methyl propionate 598.4
    isopentyl acetate 253.6
    trichloroethylene 1697.65
    n-nonanol 68.81
    cyclohexanol 204.74
    benzyl alcohol 148.78
    2-ethylhexanol 59.39
    isooctanol 67.06
    dipropyl ether 114.06
    1,2-dichlorobenzene 506.42
    ethyl lactate 180.55
    propylene carbonate 929.4
    n-methylformamide 332.12
    2-pentanol 81.39
    n-pentane 24.62
    1-propoxy-2-propanol 149.42
    1-methoxy-2-propyl acetate 347.38
    2-(2-methoxypropoxy) propanol 164.84
    mesitylene 89.58
    ε-caprolactone 1087.35
    p-cymene 65.1
    epichlorohydrin 1229.48
    1,1,1-trichloroethane 1126.77
    2-aminoethanol 43.1
    morpholine-4-carbaldehyde 836.16
    sulfolane 2378.87
    2,2,4-trimethylpentane 26.03
    2-methyltetrahydrofuran 684.26
    n-hexyl acetate 357.7
    isooctane 9.32
    2-(2-butoxyethoxy)ethanol 199.04
    sec-butyl acetate 281.06
    tert-butyl acetate 422.5
    decalin 37.33
    glycerin 55.95
    diglyme 505.31
    acrylic acid 335.34
    isopropyl myristate 100.22
    n-butyric acid 458.43
    acetyl acetate 574.24
    di(2-ethylhexyl) phthalate 108.6
    ethyl propionate 401.29
    nitromethane 1010.28
    1,2-diethoxyethane 253.78
    benzonitrile 216.15
    trioctyl phosphate 80.96
    1-bromopropane 364.82
    gamma-valerolactone 1340.11
    n-decanol 42.81
    triethyl phosphate 190.61
    4-methyl-2-pentanol 50.16
    propionitrile 188.58
    vinylene carbonate 789.46
    1,1,2-trichlorotrifluoroethane 893.5
    DMS 465.04
    cumene 72.51
    2-octanol 64.96
    2-hexanone 257.88
    octyl acetate 150.94
    limonene 107.97
    1,2-dimethoxyethane 292.16
    ethyl orthosilicate 163.73
    tributyl phosphate 113.6
    diacetone alcohol 321.45
    N,N-dimethylaniline 170.69
    acrylonitrile 253.64
    aniline 254.9
    1,3-propanediol 70.45
    bromobenzene 504.57
    dibromomethane 736.98
    1,1,2,2-tetrachloroethane 1436.61
    2-methyl-cyclohexyl acetate 214.75
    tetrabutyl urea 157.71
    diisobutyl methanol 38.99
    2-phenylethanol 106.69
    styrene 146.44
    dioctyl adipate 185.65
    dimethyl sulfate 939.79
    ethyl butyrate 267.69
    methyl lactate 280.37
    butyl lactate 276.66
    diethyl carbonate 196.03
    propanediol butyl ether 129.62
    triethyl orthoformate 206.49
    p-tert-butyltoluene 62.0
    methyl 4-tert-butylbenzoate 352.1
    morpholine 435.25
    tert-butylamine 61.6
    n-dodecanol 29.15
    dimethoxymethane 362.75
    ethylene carbonate 699.91
    cyrene 265.05
    2-ethoxyethyl acetate 557.82
    2-ethylhexyl acetate 221.36
    1,2,4-trichlorobenzene 704.51
    4-methylpyridine 577.67
    dibutyl ether 118.61
    2,6-dimethyl-4-heptanol 38.99
    DEF 626.41
    dimethyl isosorbide 388.67
    tetrachloroethylene 982.75
    eugenol 231.94
    triacetin 534.43
    span 80 158.45
    1,4-butanediol 37.45
    1,1-dichloroethane 737.37
    2-methyl-1-pentanol 83.26
    methyl formate 300.03
    2-methyl-1-butanol 96.65
    n-decane 15.46
    butyronitrile 149.23
    3,7-dimethyl-1-octanol 62.98
    1-chlorooctane 78.71
    1-chlorotetradecane 25.43
    n-nonane 13.99
    undecane 9.8
    tert-butylcyclohexane 24.4
    cyclooctane 30.53
    cyclopentanol 251.75
    tetrahydropyran 451.87
    tert-amyl methyl ether 231.31
    2,5,8-trioxanonane 272.22
    1-hexene 70.22
    2-isopropoxyethanol 134.12
    2,2,2-trifluoroethanol 379.61
    methyl butyrate 474.07

    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