Propanoic acid, 2-hydroxy-, compd. with N-(3-(dimethylamino)propyl)octadecanamide (1:1)

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  • Identifiers

    CAS number
    55819-53-9

    Molecular formula
    C26H54N2O4

    SMILES
    CCCCCCCCCCCCCCCCCC(=O)NCCCN(C)C.CC(C(=O)O)O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Fishy 42.2%
    Waxy 38.36%
    Meaty 36.04%
    Savory 33.87%
    Fatty 30.41%
    Animal 30.32%
    Odorless 29.03%
    Cheesy 28.82%
    Cooling 26.77%
    Oily 26.21%

     

    Flavor
    Bland 36.81%
    Mild 30.83%
    Odorless 27.99%
    Faint 26.5%
    Fatty 23.26%
    Slightly waxy 22.4%
    Waxy 21.79%
    Delicate 21.47%
    Bay oil 20.73%
    Beer 19.79%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    8.26 (weak base)

    Molecular weight
    458.7 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    484°C

    Flash point

    • 205.36 ˚C est.

  • Synonyms

    • Stearamidopropyl dimethylamine lactate
    • 55819-53-9
    • Dimethyl[(3-stearoylamino)propyl]ammonium lactate
    • INCROMATE SDL
    • JEECHEM SDM
    • 31Q9363QSX
    • (3-Stearylamidopropyl)dimethylammonium lactate
    • HETAMINE 5L25
    • MACKALENE 316
    • CATEMOL 1825-L
    • N-[3-(dimethylamino)propyl]octadecanamide;2-hydroxypropanoic acid
    • Dimethyl((3-stearoylamino)propyl)ammonium lactate
    • OCTADECANAMIDE, N-(3-(DIMETHYLAMINO)PROPYL)-, MONO(2-HYDROXYPROPANOATE)
    • (3-Stearamidopropyl)dimethylamine, lactate
    • UNII-31Q9363QSX
    • EINECS 259-837-7
    • EINECS 267-183-9
    • (3-Stearamidopropyl)dimethylamine lactate
    • N,N-Dimethyl-N-(3-stearamidopropyl)amine, lactate
    • DTXSID9052218
    • NTLIJZACUWTZFB-UHFFFAOYSA-N
    • N,N-Dimethyl-N-(3-stearamidopropyl)amine, (+-)-lactic acid salt
    • 133681-90-0
    • STEARAMIDOPROPYL DIMETHYLAMINE LACTATE [INCI]
    • Q27256074
    • 2-hydroxypropanoic acid - N-[3-(dimethylamino)propyl]octadecanamide (1:1)
    • (1)-Lactic acid, compound with N-(3-(dimethylamino)propyl)octadecanamide (1:1)
    • Propanoic acid, 2-hydroxy-, compd. with N-3-(dimethylamino)propyloctadecanamide (1:1)
    • 259-837-7

  • Applications

    Propanoic acid, 2-hydroxy-, compd. with N-(3-(dimethylamino)propyl)octadecanamide (1:1) is a complex that functions as an amphiphilic surfactant, pairing the hydrophilic lactic acid moiety with the long hydrophobic amide tail. Its ionizable/ionic character enables it to act as a surfactant, co-surfactant, and emulsion stabilizer in aqueous formulations. Practical applications include cosmetics/personal care (cleansing, emulsification, and stabilization of creams/lotions), household cleaners and detergents, industry-grade emulsions and dispersions for polymers and coatings/inks, and adhesive formulations where improved wetting and dispersion are desired.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 14.55
    methanol 25.56
    isopropanol 13.11
    water 0.4
    ethyl acetate 69.04
    n-propanol 21.13
    acetone 40.75
    n-butanol 24.68
    acetonitrile 14.21
    DMF 87.3
    toluene 28.48
    isobutanol 23.98
    1,4-dioxane 70.73
    methyl acetate 51.11
    THF 175.24
    2-butanone 66.91
    n-pentanol 22.89
    sec-butanol 25.99
    n-hexane 9.12
    ethylene glycol 3.5
    NMP 343.95
    cyclohexane 36.78
    DMSO 117.71
    n-butyl acetate 90.4
    n-octanol 33.67
    chloroform 296.14
    n-propyl acetate 100.89
    acetic acid 75.73
    dichloromethane 236.18
    cyclohexanone 240.68
    propylene glycol 8.69
    isopropyl acetate 73.69
    DMAc 255.86
    2-ethoxyethanol 58.66
    isopentanol 34.38
    n-heptane 9.98
    ethyl formate 45.42
    1,2-dichloroethane 136.87
    n-hexanol 23.15
    2-methoxyethanol 54.22
    isobutyl acetate 76.15
    tetrachloromethane 92.08
    n-pentyl acetate 149.21
    transcutol 315.53
    n-heptanol 34.21
    ethylbenzene 23.39
    MIBK 67.67
    2-propoxyethanol 59.28
    tert-butanol 30.8
    MTBE 49.57
    2-butoxyethanol 95.25
    propionic acid 57.83
    o-xylene 37.95
    formic acid 27.49
    diethyl ether 32.92
    m-xylene 27.35
    p-xylene 37.37
    chlorobenzene 59.85
    dimethyl carbonate 27.15
    n-octane 5.23
    formamide 36.33
    cyclopentanone 221.08
    2-pentanone 66.8
    anisole 43.9
    cyclopentyl methyl ether 119.17
    gamma-butyrolactone 234.32
    1-methoxy-2-propanol 55.1
    pyridine 80.32
    3-pentanone 72.45
    furfural 184.65
    n-dodecane 2.75
    diethylene glycol 29.96
    diisopropyl ether 22.92
    tert-amyl alcohol 49.83
    acetylacetone 93.54
    n-hexadecane 3.28
    acetophenone 84.55
    methyl propionate 65.32
    isopentyl acetate 99.65
    trichloroethylene 287.09
    n-nonanol 35.34
    cyclohexanol 74.83
    benzyl alcohol 38.64
    2-ethylhexanol 32.98
    isooctanol 38.68
    dipropyl ether 51.75
    1,2-dichlorobenzene 87.66
    ethyl lactate 55.95
    propylene carbonate 168.58
    n-methylformamide 41.49
    2-pentanol 23.25
    n-pentane 6.22
    1-propoxy-2-propanol 69.54
    1-methoxy-2-propyl acetate 100.45
    2-(2-methoxypropoxy) propanol 91.81
    mesitylene 24.63
    ε-caprolactone 243.88
    p-cymene 26.76
    epichlorohydrin 193.92
    1,1,1-trichloroethane 186.18
    2-aminoethanol 12.35
    morpholine-4-carbaldehyde 175.85
    sulfolane 460.44
    2,2,4-trimethylpentane 11.25
    2-methyltetrahydrofuran 140.18
    n-hexyl acetate 122.95
    isooctane 4.64
    2-(2-butoxyethoxy)ethanol 113.39
    sec-butyl acetate 85.62
    tert-butyl acetate 109.41
    decalin 14.15
    glycerin 21.13
    diglyme 264.09
    acrylic acid 48.05
    isopropyl myristate 38.34
    n-butyric acid 109.71
    acetyl acetate 63.15
    di(2-ethylhexyl) phthalate 46.41
    ethyl propionate 83.73
    nitromethane 101.7
    1,2-diethoxyethane 101.41
    benzonitrile 43.32
    trioctyl phosphate 32.46
    1-bromopropane 72.34
    gamma-valerolactone 291.16
    n-decanol 21.37
    triethyl phosphate 77.93
    4-methyl-2-pentanol 22.37
    propionitrile 20.57
    vinylene carbonate 128.48
    1,1,2-trichlorotrifluoroethane 243.09
    DMS 71.77
    cumene 22.09
    2-octanol 28.84
    2-hexanone 76.59
    octyl acetate 50.44
    limonene 46.78
    1,2-dimethoxyethane 117.98
    ethyl orthosilicate 80.28
    tributyl phosphate 47.2
    diacetone alcohol 101.37
    N,N-dimethylaniline 43.22
    acrylonitrile 23.82
    aniline 37.7
    1,3-propanediol 21.93
    bromobenzene 64.68
    dibromomethane 149.49
    1,1,2,2-tetrachloroethane 311.45
    2-methyl-cyclohexyl acetate 106.72
    tetrabutyl urea 66.49
    diisobutyl methanol 25.47
    2-phenylethanol 37.65
    styrene 24.73
    dioctyl adipate 78.42
    dimethyl sulfate 91.47
    ethyl butyrate 103.7
    methyl lactate 42.59
    butyl lactate 111.82
    diethyl carbonate 63.45
    propanediol butyl ether 75.92
    triethyl orthoformate 104.94
    p-tert-butyltoluene 24.57
    methyl 4-tert-butylbenzoate 117.25
    morpholine 107.37
    tert-butylamine 23.2
    n-dodecanol 14.15
    dimethoxymethane 48.84
    ethylene carbonate 112.39
    cyrene 113.28
    2-ethoxyethyl acetate 156.65
    2-ethylhexyl acetate 95.84
    1,2,4-trichlorobenzene 114.71
    4-methylpyridine 75.5
    dibutyl ether 60.55
    2,6-dimethyl-4-heptanol 25.47
    DEF 123.88
    dimethyl isosorbide 183.14
    tetrachloroethylene 235.8
    eugenol 93.04
    triacetin 170.52
    span 80 85.0
    1,4-butanediol 11.51
    1,1-dichloroethane 109.93
    2-methyl-1-pentanol 35.16
    methyl formate 31.91
    2-methyl-1-butanol 37.79
    n-decane 6.94
    butyronitrile 26.18
    3,7-dimethyl-1-octanol 36.7
    1-chlorooctane 33.33
    1-chlorotetradecane 9.26
    n-nonane 6.65
    undecane 4.01
    tert-butylcyclohexane 11.12
    cyclooctane 10.93
    cyclopentanol 66.87
    tetrahydropyran 110.71
    tert-amyl methyl ether 70.19
    2,5,8-trioxanonane 145.62
    1-hexene 20.09
    2-isopropoxyethanol 54.79
    2,2,2-trifluoroethanol 55.65
    methyl butyrate 119.35

    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