Potassium Ethylparaben

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  • Identifiers

    CAS number
    36457-19-9

    Molecular formula
    C9H9KO3

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

    Safety labels

  • Odor profile

    Fragrance
    Floral 63.37%
    Sweet 57.78%
    Phenolic 49.92%
    Fruity 44.38%
    Grape 41.47%
    Vanilla 38.67%
    Powdery 37.06%
    Aromatic 34.48%
    Animal 33.5%
    Balsamic 32.68%

     

    Flavor
    Sweet 68.33%
    Floral 56.74%
    Balsam 53.04%
    Bitter 48.97%
    Wintergreen 45.18%
    Powdery 45.1%
    Fruity 44.75%
    Grape 37.74%
    Balsamic 35.37%
    Vanilla 34.72%

     

    Odor impact est.
    High

  • Properties

    pKa est.
    6.02 (neutral)

    Molecular weight
    204.26 g/mol

    Flash point

    • 109.39 ˚C est.

  • Synonyms

    • Potassium Ethylparaben
    • 36457-19-9
    • ethylparaben potassium
    • UNII-528JBB2994
    • EINECS 253-048-1
    • 528JBB2994
    • DTXSID50189970
    • ETHYL P-HYDROXYBENZOATE POTASSIUM SALT
    • P-HYDROXYBENZOIC ACID ETHYL ESTER POTASSIUM SALT
    • BENZOIC ACID, 4-HYDROXY-, ETHYL ESTER, POTASSIUM SALT (1:1)
    • RefChem:175473
    • DTXCID10112461
    • POTASSIUM ETHYLPARABEN [INCI]
    • Potassium ethyl 4-oxidobenzoate
    • potassium;4-ethoxycarbonylphenolate
    • potassium 4-ethoxycarbonylphenolate
    • SCHEMBL476013
    • MSK2510K
    • HFTYFFXNUVBSII-UHFFFAOYSA-M
    • Potassium 4-(ethoxycarbonyl)phenolate
    • ETHYL 4-HYDROXYBENZOATE POTASSIUM SALT
    • Q27260980
    • 36457-19-9

  • Applications

    Potassium Ethylparaben (CAS 36457-19-9) is used as a water-soluble preservative in formulation systems, helping to inhibit microbial growth in aqueous cosmetics and personal care products such as creams, lotions, shampoos, and toothpaste; it is also employed in pharmaceutical formulations to extend shelf life by reducing microbial contamination; in select household and cleaning products that rely on aqueous systems, it serves as a preservative; in some coatings and inks formulations, it provides antimicrobial protection to preserve product integrity during storage. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 263.49
    methanol 343.65
    isopropanol 221.66
    water 0.91
    ethyl acetate 671.09
    n-propanol 199.97
    acetone 1459.8
    n-butanol 168.36
    acetonitrile 1099.24
    DMF 2117.27
    toluene 188.78
    isobutanol 144.21
    1,4-dioxane 807.5
    methyl acetate 844.14
    THF 866.64
    2-butanone 868.53
    n-pentanol 189.49
    sec-butanol 209.75
    n-hexane 22.11
    ethylene glycol 108.75
    NMP 1498.61
    cyclohexane 17.62
    DMSO 2557.96
    n-butyl acetate 495.05
    n-octanol 140.48
    chloroform 980.63
    n-propyl acetate 571.97
    acetic acid 762.04
    dichloromethane 1457.57
    cyclohexanone 841.71
    propylene glycol 100.21
    isopropyl acetate 329.93
    DMAc 1229.44
    2-ethoxyethanol 504.38
    isopentanol 165.72
    n-heptane 12.5
    ethyl formate 449.77
    1,2-dichloroethane 1078.53
    n-hexanol 147.5
    2-methoxyethanol 605.19
    isobutyl acetate 227.05
    tetrachloromethane 68.16
    n-pentyl acetate 259.02
    transcutol 1938.33
    n-heptanol 85.11
    ethylbenzene 168.21
    MIBK 285.31
    2-propoxyethanol 367.51
    tert-butanol 345.98
    MTBE 324.66
    2-butoxyethanol 224.81
    propionic acid 478.24
    o-xylene 164.54
    formic acid 308.02
    diethyl ether 349.35
    m-xylene 157.7
    p-xylene 218.23
    chlorobenzene 417.57
    dimethyl carbonate 368.02
    n-octane 9.0
    formamide 903.72
    cyclopentanone 1176.91
    2-pentanone 602.04
    anisole 503.05
    cyclopentyl methyl ether 358.87
    gamma-butyrolactone 1503.69
    1-methoxy-2-propanol 455.16
    pyridine 725.94
    3-pentanone 468.22
    furfural 1176.82
    n-dodecane 11.44
    diethylene glycol 346.92
    diisopropyl ether 97.63
    tert-amyl alcohol 301.52
    acetylacetone 836.46
    n-hexadecane 13.7
    acetophenone 529.28
    methyl propionate 610.88
    isopentyl acetate 330.58
    trichloroethylene 1907.76
    n-nonanol 125.9
    cyclohexanol 181.14
    benzyl alcohol 322.29
    2-ethylhexanol 111.7
    isooctanol 77.59
    dipropyl ether 156.85
    1,2-dichlorobenzene 408.92
    ethyl lactate 233.58
    propylene carbonate 637.59
    n-methylformamide 989.02
    2-pentanol 148.09
    n-pentane 13.1
    1-propoxy-2-propanol 269.33
    1-methoxy-2-propyl acetate 367.6
    2-(2-methoxypropoxy) propanol 334.69
    mesitylene 100.52
    ε-caprolactone 753.41
    p-cymene 78.1
    epichlorohydrin 1466.56
    1,1,1-trichloroethane 535.82
    2-aminoethanol 160.66
    morpholine-4-carbaldehyde 1200.96
    sulfolane 1855.77
    2,2,4-trimethylpentane 13.72
    2-methyltetrahydrofuran 601.13
    n-hexyl acetate 403.15
    isooctane 10.34
    2-(2-butoxyethoxy)ethanol 475.63
    sec-butyl acetate 289.08
    tert-butyl acetate 348.06
    decalin 25.9
    glycerin 193.51
    diglyme 919.27
    acrylic acid 529.39
    isopropyl myristate 141.13
    n-butyric acid 406.39
    acetyl acetate 424.51
    di(2-ethylhexyl) phthalate 118.3
    ethyl propionate 447.25
    nitromethane 2395.48
    1,2-diethoxyethane 495.53
    benzonitrile 519.58
    trioctyl phosphate 92.65
    1-bromopropane 343.44
    gamma-valerolactone 1277.44
    n-decanol 97.59
    triethyl phosphate 147.89
    4-methyl-2-pentanol 93.55
    propionitrile 488.09
    vinylene carbonate 639.95
    1,1,2-trichlorotrifluoroethane 683.95
    DMS 463.51
    cumene 105.65
    2-octanol 83.72
    2-hexanone 502.35
    octyl acetate 187.46
    limonene 102.78
    1,2-dimethoxyethane 868.54
    ethyl orthosilicate 125.42
    tributyl phosphate 136.87
    diacetone alcohol 398.19
    N,N-dimethylaniline 292.4
    acrylonitrile 888.99
    aniline 296.74
    1,3-propanediol 232.1
    bromobenzene 418.16
    dibromomethane 762.69
    1,1,2,2-tetrachloroethane 1161.03
    2-methyl-cyclohexyl acetate 206.0
    tetrabutyl urea 181.72
    diisobutyl methanol 74.7
    2-phenylethanol 236.41
    styrene 257.46
    dioctyl adipate 224.64
    dimethyl sulfate 704.79
    ethyl butyrate 313.52
    methyl lactate 289.63
    butyl lactate 209.33
    diethyl carbonate 241.81
    propanediol butyl ether 299.23
    triethyl orthoformate 187.97
    p-tert-butyltoluene 73.17
    methyl 4-tert-butylbenzoate 289.51
    morpholine 796.29
    tert-butylamine 168.05
    n-dodecanol 74.94
    dimethoxymethane 738.77
    ethylene carbonate 483.02
    cyrene 305.81
    2-ethoxyethyl acetate 414.06
    2-ethylhexyl acetate 256.22
    1,2,4-trichlorobenzene 472.65
    4-methylpyridine 769.76
    dibutyl ether 223.13
    2,6-dimethyl-4-heptanol 74.7
    DEF 757.5
    dimethyl isosorbide 490.83
    tetrachloroethylene 647.93
    eugenol 295.94
    triacetin 456.3
    span 80 236.42
    1,4-butanediol 129.9
    1,1-dichloroethane 769.46
    2-methyl-1-pentanol 179.06
    methyl formate 850.65
    2-methyl-1-butanol 158.54
    n-decane 17.52
    butyronitrile 372.48
    3,7-dimethyl-1-octanol 135.69
    1-chlorooctane 98.7
    1-chlorotetradecane 42.79
    n-nonane 15.7
    undecane 14.02
    tert-butylcyclohexane 23.77
    cyclooctane 7.7
    cyclopentanol 224.33
    tetrahydropyran 498.38
    tert-amyl methyl ether 258.65
    2,5,8-trioxanonane 570.86
    1-hexene 115.55
    2-isopropoxyethanol 335.01
    2,2,2-trifluoroethanol 305.37
    methyl butyrate 597.69

    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