Potassium methoxycinnamate

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  • Identifiers

    CAS number
    885058-30-0

    Molecular formula
    C10H9KO3

    SMILES
    COC1=CC=C(C=C1)/C=C/C(=O)[O-].[K+]

    Safety labels

  • Odor profile

    Fragrance
    Sweet 69.5%
    Balsamic 61.31%
    Spicy 55.78%
    Vanilla 51.52%
    Cinnamon 40.58%
    Powdery 40.11%
    Honey 37.3%
    Phenolic 34.72%
    Floral 33.36%
    Creamy 32.86%

     

    Flavor
    Sweet 59.49%
    Balsam 46.02%
    Honey 33.78%
    Powdery 31.75%
    Cinnamon 30.96%
    Balsamic 30.91%
    Vanilla 26.19%
    Cherry 25.91%
    Faint 25.73%
    Floral 24.7%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    4.44 (weak acid)

    Molecular weight
    216.27 g/mol

    Flash point

    • 140.31 ˚C est.

  • Synonyms

    • Potassium methoxycinnamate
    • Potassium 4-methoxycinnamate
    • Potassium p-methoxycinnamate
    • UNII-42D4RUI684
    • 885058-30-0
    • 42D4RUI684
    • 2-Propenoic acid, 3-(4-methoxyphenyl)-, potassium salt
    • 2-Propenoic acid, 3-(4-methoxyphenyl)-, potassium salt (1:1), (2E)-
    • DTXSID90237085
    • RefChem:175520
    • DTXCID90159576
    • POTASSIUM METHOXYCINNAMATE [INCI]
    • 4-Methoxycinnamic acid potassium salt
    • 86636-96-6
    • potassium;(E)-3-(4-methoxyphenyl)prop-2-enoate
    • potassium-p-methoxycinnamate
    • C10H9KO3
    • SCHEMBL2300761
    • OEEUOVDUVFUJCL-KQGICBIGSA-M
    • AKOS003052663
    • AKOS022190669
    • Potassium 3-(4-methoxyphenyl)acrylate
    • FP70698
    • Potassium (2E)-3-(4-methoxyphenyl)prop-2-enoate
    • Q27258535
    • 86636-96-6

  • Applications

    Potassium methoxycinnamate (CAS 885058-30-0) is a water-soluble cinnamate salt that is often evaluated for use as a UV-absorbing additive in cosmetics and personal care products, particularly in water-based formulations; it can act as a UV stabilizer in polymers and coatings to retard photo-oxidative degradation of outdoor plastics and paints; in coatings, inks, and adhesives, it may be employed to improve UV resistance and color stability; it also serves as an intermediate in the synthesis of cinnamate-derived UV-absorbing compounds used in various formulation systems.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 71.28
    methanol 116.01
    isopropanol 36.39
    water 0.34
    ethyl acetate 97.23
    n-propanol 40.2
    acetone 68.15
    n-butanol 29.65
    acetonitrile 55.45
    DMF 107.06
    toluene 17.81
    isobutanol 19.61
    1,4-dioxane 194.1
    methyl acetate 108.45
    THF 162.48
    2-butanone 62.69
    n-pentanol 26.93
    sec-butanol 24.88
    n-hexane 0.19
    ethylene glycol 42.58
    NMP 53.55
    cyclohexane 0.43
    DMSO 122.64
    n-butyl acetate 36.06
    n-octanol 14.47
    chloroform 38.76
    n-propyl acetate 41.53
    acetic acid 62.61
    dichloromethane 69.42
    cyclohexanone 42.44
    propylene glycol 38.69
    isopropyl acetate 45.38
    DMAc 136.43
    2-ethoxyethanol 126.62
    isopentanol 24.42
    n-heptane 1.05
    ethyl formate 43.44
    1,2-dichloroethane 47.71
    n-hexanol 22.79
    2-methoxyethanol 203.12
    isobutyl acetate 23.39
    tetrachloromethane 2.43
    n-pentyl acetate 20.3
    transcutol 306.03
    n-heptanol 13.51
    ethylbenzene 11.02
    MIBK 28.88
    2-propoxyethanol 88.81
    tert-butanol 66.46
    MTBE 37.46
    2-butoxyethanol 43.76
    propionic acid 41.2
    o-xylene 14.18
    formic acid 61.59
    diethyl ether 39.69
    m-xylene 13.88
    p-xylene 12.94
    chlorobenzene 18.4
    dimethyl carbonate 51.9
    n-octane 0.9
    formamide 133.08
    cyclopentanone 59.77
    2-pentanone 38.82
    anisole 55.85
    cyclopentyl methyl ether 37.22
    gamma-butyrolactone 115.51
    1-methoxy-2-propanol 118.24
    pyridine 69.89
    3-pentanone 31.06
    furfural 104.12
    n-dodecane 1.56
    diethylene glycol 114.24
    diisopropyl ether 10.79
    tert-amyl alcohol 40.21
    acetylacetone 74.28
    n-hexadecane 1.7
    acetophenone 42.22
    methyl propionate 73.4
    isopentyl acetate 34.53
    trichloroethylene 77.61
    n-nonanol 15.17
    cyclohexanol 18.9
    benzyl alcohol 44.9
    2-ethylhexanol 15.15
    isooctanol 11.8
    dipropyl ether 21.06
    1,2-dichlorobenzene 19.55
    ethyl lactate 29.21
    propylene carbonate 53.42
    n-methylformamide 86.59
    2-pentanol 18.44
    n-pentane 0.26
    1-propoxy-2-propanol 51.82
    1-methoxy-2-propyl acetate 72.54
    2-(2-methoxypropoxy) propanol 68.2
    mesitylene 9.06
    ε-caprolactone 56.98
    p-cymene 10.07
    epichlorohydrin 176.07
    1,1,1-trichloroethane 23.63
    2-aminoethanol 58.87
    morpholine-4-carbaldehyde 157.69
    sulfolane 85.24
    2,2,4-trimethylpentane 0.8
    2-methyltetrahydrofuran 72.69
    n-hexyl acetate 28.31
    isooctane 0.82
    2-(2-butoxyethoxy)ethanol 87.73
    sec-butyl acetate 31.03
    tert-butyl acetate 54.13
    decalin 1.46
    glycerin 72.64
    diglyme 158.3
    acrylic acid 39.39
    isopropyl myristate 17.45
    n-butyric acid 42.35
    acetyl acetate 54.15
    di(2-ethylhexyl) phthalate 18.69
    ethyl propionate 42.46
    nitromethane 152.8
    1,2-diethoxyethane 88.75
    benzonitrile 32.94
    trioctyl phosphate 11.65
    1-bromopropane 14.42
    gamma-valerolactone 128.43
    n-decanol 13.34
    triethyl phosphate 24.13
    4-methyl-2-pentanol 13.65
    propionitrile 41.7
    vinylene carbonate 49.0
    1,1,2-trichlorotrifluoroethane 78.23
    DMS 52.12
    cumene 9.25
    2-octanol 9.5
    2-hexanone 30.04
    octyl acetate 20.78
    limonene 11.53
    1,2-dimethoxyethane 153.87
    ethyl orthosilicate 23.23
    tributyl phosphate 16.56
    diacetone alcohol 69.37
    N,N-dimethylaniline 31.92
    acrylonitrile 59.75
    aniline 37.31
    1,3-propanediol 77.38
    bromobenzene 15.81
    dibromomethane 25.56
    1,1,2,2-tetrachloroethane 52.24
    2-methyl-cyclohexyl acetate 29.94
    tetrabutyl urea 25.07
    diisobutyl methanol 12.76
    2-phenylethanol 38.0
    styrene 13.76
    dioctyl adipate 29.53
    dimethyl sulfate 63.52
    ethyl butyrate 34.0
    methyl lactate 50.38
    butyl lactate 21.31
    diethyl carbonate 29.59
    propanediol butyl ether 38.57
    triethyl orthoformate 30.18
    p-tert-butyltoluene 10.27
    methyl 4-tert-butylbenzoate 42.42
    morpholine 178.38
    tert-butylamine 22.94
    n-dodecanol 11.6
    dimethoxymethane 148.85
    ethylene carbonate 40.33
    cyrene 56.85
    2-ethoxyethyl acetate 55.15
    2-ethylhexyl acetate 25.88
    1,2,4-trichlorobenzene 28.15
    4-methylpyridine 53.22
    dibutyl ether 22.56
    2,6-dimethyl-4-heptanol 12.76
    DEF 50.85
    dimethyl isosorbide 123.51
    tetrachloroethylene 25.84
    eugenol 46.08
    triacetin 50.88
    span 80 38.2
    1,4-butanediol 33.06
    1,1-dichloroethane 28.74
    2-methyl-1-pentanol 23.48
    methyl formate 74.7
    2-methyl-1-butanol 20.25
    n-decane 1.95
    butyronitrile 30.13
    3,7-dimethyl-1-octanol 16.19
    1-chlorooctane 8.42
    1-chlorotetradecane 5.25
    n-nonane 1.51
    undecane 1.75
    tert-butylcyclohexane 1.67
    cyclooctane 0.38
    cyclopentanol 24.05
    tetrahydropyran 57.97
    tert-amyl methyl ether 29.6
    2,5,8-trioxanonane 141.49
    1-hexene 2.5
    2-isopropoxyethanol 69.25
    2,2,2-trifluoroethanol 27.71
    methyl butyrate 44.38

    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