Sodium Isobutylparaben

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  • Identifiers

    CAS number
    84930-15-4

    Molecular formula
    C11H13NaO3

    SMILES
    CC(C)COC(=O)C1=CC=C(C=C1)[O-].[Na+]

    Safety labels

  • Odor profile

    Fragrance
    Sweet 80.29%
    Floral 63.09%
    Balsamic 46.92%
    Fruity 46.17%
    Vanilla 39.75%
    Powdery 39.28%
    Phenolic 36.79%
    Herbal 36.02%
    Green 34.21%
    Grape 32.55%

     

    Flavor
    Sweet 53.32%
    Fruity 45.1%
    Bitter 36.42%
    Herbal 35.95%
    Powdery 35.05%
    Balsam 34.84%
    Floral 32.78%
    Wintergreen 27.53%
    Grape 26.72%
    Balsamic 25.75%

     

    Odor impact est.
    High

  • Properties

    pKa est.
    6.78 (neutral)

    Molecular weight
    216.21 g/mol

    Flash point

    • 118.49 ˚C est.

  • Synonyms

    • Sodium isobutyl 4-oxidobenzoate
    • Sodium Isobutylparaben
    • 84930-15-4
    • UNII-9687QN0ZSY
    • 9687QN0ZSY
    • EINECS 284-595-4
    • DTXSID20233974
    • RefChem:183949
    • DTXCID50156465
    • SODIUM ISOBUTYLPARABEN [INCI]
    • 284-595-4
    • sodium;4-(2-methylpropoxycarbonyl)phenolate
    • MSK2513Na
    • HLDPLHCMNIULPL-UHFFFAOYSA-M
    • Sodium 4-(isobutoxycarbonyl)phenolate
    • Sodium 4-[(2-methylpropoxy)carbonyl]phenolate
    • p-Hydroxybenzoic acid isobutyl ester sodium salt
    • Q27271880
    • BENZOIC ACID, 4-HYDROXY-, 2-METHYLPROPYL ESTER, SODIUM SALT (1:1)
    • 84930-15-4

  • Applications

    Sodium Isobutylparaben (CAS 84930-15-4) is primarily used as a preservative in water-based formulations, with applications across cosmetics and personal care, pharmaceuticals, and select household and industrial products. In cosmetics and personal care, it acts as an antimicrobial preservative in creams, lotions, and shampoos. In pharmaceuticals, it is used as a preservative in topical and other dosage forms. In household products such as cleaners and detergents, it helps control microbial growth. In some industrial manufacturing contexts, it serves as a preservative for aqueous formulations and emulsions to limit microbial spoilage. The sodium salt form improves solubility in water-based systems.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 616.0
    methanol 704.76
    isopropanol 444.07
    water 0.4
    ethyl acetate 412.75
    n-propanol 408.92
    acetone 646.11
    n-butanol 440.78
    acetonitrile 400.13
    DMF 1033.39
    toluene 169.06
    isobutanol 332.95
    1,4-dioxane 512.16
    methyl acetate 441.35
    THF 643.23
    2-butanone 529.88
    n-pentanol 336.85
    sec-butanol 420.1
    n-hexane 11.91
    ethylene glycol 116.63
    NMP 556.72
    cyclohexane 13.24
    DMSO 625.21
    n-butyl acetate 419.42
    n-octanol 144.08
    chloroform 700.03
    n-propyl acetate 314.25
    acetic acid 629.77
    dichloromethane 633.4
    cyclohexanone 513.51
    propylene glycol 182.94
    isopropyl acetate 263.57
    DMAc 782.35
    2-ethoxyethanol 467.84
    isopentanol 423.93
    n-heptane 6.08
    ethyl formate 297.46
    1,2-dichloroethane 493.27
    n-hexanol 286.84
    2-methoxyethanol 708.44
    isobutyl acetate 198.09
    tetrachloromethane 34.27
    n-pentyl acetate 164.69
    transcutol 1463.55
    n-heptanol 125.66
    ethylbenzene 125.04
    MIBK 280.87
    2-propoxyethanol 443.91
    tert-butanol 599.1
    MTBE 411.33
    2-butoxyethanol 255.06
    propionic acid 311.03
    o-xylene 121.04
    formic acid 226.03
    diethyl ether 302.69
    m-xylene 132.57
    p-xylene 152.89
    chlorobenzene 243.69
    dimethyl carbonate 139.49
    n-octane 4.42
    formamide 408.16
    cyclopentanone 538.23
    2-pentanone 432.22
    anisole 318.61
    cyclopentyl methyl ether 277.04
    gamma-butyrolactone 547.74
    1-methoxy-2-propanol 527.99
    pyridine 472.17
    3-pentanone 242.71
    furfural 563.19
    n-dodecane 6.04
    diethylene glycol 358.78
    diisopropyl ether 82.08
    tert-amyl alcohol 536.39
    acetylacetone 416.24
    n-hexadecane 6.91
    acetophenone 316.87
    methyl propionate 304.73
    isopentyl acetate 340.2
    trichloroethylene 1017.79
    n-nonanol 114.69
    cyclohexanol 277.43
    benzyl alcohol 299.97
    2-ethylhexanol 162.38
    isooctanol 103.97
    dipropyl ether 112.76
    1,2-dichlorobenzene 219.41
    ethyl lactate 160.26
    propylene carbonate 353.54
    n-methylformamide 456.89
    2-pentanol 320.5
    n-pentane 9.67
    1-propoxy-2-propanol 316.39
    1-methoxy-2-propyl acetate 312.76
    2-(2-methoxypropoxy) propanol 279.22
    mesitylene 71.42
    ε-caprolactone 432.63
    p-cymene 63.4
    epichlorohydrin 710.41
    1,1,1-trichloroethane 299.73
    2-aminoethanol 258.12
    morpholine-4-carbaldehyde 603.39
    sulfolane 541.85
    2,2,4-trimethylpentane 13.29
    2-methyltetrahydrofuran 498.22
    n-hexyl acetate 267.33
    isooctane 10.07
    2-(2-butoxyethoxy)ethanol 411.49
    sec-butyl acetate 220.05
    tert-butyl acetate 306.33
    decalin 16.85
    glycerin 222.86
    diglyme 678.5
    acrylic acid 307.98
    isopropyl myristate 86.6
    n-butyric acid 457.57
    acetyl acetate 228.18
    di(2-ethylhexyl) phthalate 97.76
    ethyl propionate 225.69
    nitromethane 836.85
    1,2-diethoxyethane 325.45
    benzonitrile 333.41
    trioctyl phosphate 68.66
    1-bromopropane 223.1
    gamma-valerolactone 682.56
    n-decanol 83.43
    triethyl phosphate 93.03
    4-methyl-2-pentanol 188.82
    propionitrile 306.13
    vinylene carbonate 353.9
    1,1,2-trichlorotrifluoroethane 466.33
    DMS 217.36
    cumene 82.84
    2-octanol 90.02
    2-hexanone 340.97
    octyl acetate 121.34
    limonene 91.76
    1,2-dimethoxyethane 640.38
    ethyl orthosilicate 89.51
    tributyl phosphate 92.48
    diacetone alcohol 438.22
    N,N-dimethylaniline 186.96
    acrylonitrile 428.37
    aniline 255.65
    1,3-propanediol 380.25
    bromobenzene 219.54
    dibromomethane 392.25
    1,1,2,2-tetrachloroethane 737.24
    2-methyl-cyclohexyl acetate 165.33
    tetrabutyl urea 115.71
    diisobutyl methanol 87.14
    2-phenylethanol 242.77
    styrene 170.75
    dioctyl adipate 141.37
    dimethyl sulfate 192.21
    ethyl butyrate 226.01
    methyl lactate 190.3
    butyl lactate 165.79
    diethyl carbonate 154.32
    propanediol butyl ether 304.31
    triethyl orthoformate 134.46
    p-tert-butyltoluene 62.77
    methyl 4-tert-butylbenzoate 193.51
    morpholine 669.09
    tert-butylamine 291.57
    n-dodecanol 59.98
    dimethoxymethane 435.12
    ethylene carbonate 258.38
    cyrene 219.94
    2-ethoxyethyl acetate 271.25
    2-ethylhexyl acetate 241.41
    1,2,4-trichlorobenzene 273.05
    4-methylpyridine 580.45
    dibutyl ether 135.54
    2,6-dimethyl-4-heptanol 87.14
    DEF 453.4
    dimethyl isosorbide 337.16
    tetrachloroethylene 383.72
    eugenol 216.22
    triacetin 252.39
    span 80 200.86
    1,4-butanediol 171.22
    1,1-dichloroethane 445.68
    2-methyl-1-pentanol 338.01
    methyl formate 331.54
    2-methyl-1-butanol 372.88
    n-decane 9.39
    butyronitrile 364.96
    3,7-dimethyl-1-octanol 147.8
    1-chlorooctane 68.05
    1-chlorotetradecane 24.96
    n-nonane 8.01
    undecane 7.36
    tert-butylcyclohexane 17.72
    cyclooctane 4.82
    cyclopentanol 247.39
    tetrahydropyran 456.07
    tert-amyl methyl ether 302.68
    2,5,8-trioxanonane 439.24
    1-hexene 102.77
    2-isopropoxyethanol 339.03
    2,2,2-trifluoroethanol 160.5
    methyl butyrate 337.72

    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