4-Hydroxy-3-methylbenzaldehyde

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  • Identifiers

    CAS number
    15174-69-3

    Molecular formula
    C8H8O2

    SMILES
    CC1=C(C=CC(=C1)C=O)O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Sweet 81.84%
    Phenolic 69.29%
    Vanilla 59.55%
    Almond 58.13%
    Spicy 57.21%
    Bitter 51.41%
    Medicinal 49.43%
    Cherry 46.72%
    Smoky 40.21%
    Coumarinic 38.9%

     

    Flavor
    Sweet 72.7%
    Almond 58.96%
    Bitter 49.63%
    Phenolic 49.4%
    Vanilla 47.29%
    Cherry 42.21%
    Woody 41.52%
    Hawthorn 40.51%
    Powdery 36.26%
    Medical 35.34%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    0.8

    pKa est.
    8.28 (weak base)

    Molecular weight
    136.15 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    289°C

    Flash point

    • 116.59 ˚C est.

  • Synonyms

    • 4-Hydroxy-3-methylbenzaldehyde
    • 15174-69-3
    • Benzaldehyde, 4-hydroxy-3-methyl-
    • UNII-P8CUX6265J
    • P8CUX6265J
    • DTXSID10164864
    • RefChem:99197
    • DTXCID6087355
    • 626-649-5
    • BAKYASSDAXQKKY-UHFFFAOYSA-N
    • MFCD00012360
    • 4-Hydroxy-3-methyl-benzaldehyde
    • 3-methyl-4-hydroxybenzaldehyde
    • 4,3-Cresotaldehyde; 3-Methyl-4-hydroxybenzaldehyde; 3-Methyl-p-hydroxybenzaldehyde; 4-Formyl-2-methylphenol; 4-Hydroxy-m-tolylaldehyde;
    • 6-hydroxy-m-tolualdehyde
    • SCHEMBL142988
    • 3-methyl-p-hydroxybenzaldehyde
    • orb3023668
    • 3-methyl-4-hydroxy-benzaldehyde
    • 4-Hydroxy-3-methyl benzaldehyde
    • CHEBI:190392
    • BBL101449
    • CL8360
    • STL555245
    • 4-Hydroxy-3-methylbenzaldehyde, 97%
    • AKOS005067737
    • CS-W008110
    • FH11821
    • AC-12431
    • AS-11571
    • BP-13093
    • SY030489
    • H1419
    • EN300-67636
    • C21166
    • 174H693
    • F078642
    • Q27286368
    • Z1082846778
    • 15174-69-3

  • Applications

    4-Hydroxy-3-methylbenzaldehyde (CAS 15174-69-3) is primarily used as a chemical intermediate and fragrance-related building block. In perfumery, it contributes to subtle floral and green notes and serves as a starting point for the synthesis of more complex aroma compounds. In cosmetics and personal care, it may be used as a fragrance ingredient or odorant. In polymers and plastics, it functions as a reactive aromatic aldehyde intermediate for the synthesis of specialty dyes, resins, and crosslinking systems. In coatings and inks, it can act as a precursor in aroma-containing resin formulations and as a functional additive. In cleaning and household products, it is employed as an odorant/fragrance component to enhance product scent. Use is typically formulation-controlled and subject to local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 315.74
    methanol 372.06
    isopropanol 213.91
    water 3.6
    ethyl acetate 424.49
    n-propanol 229.0
    acetone 392.37
    n-butanol 178.5
    acetonitrile 323.79
    DMF 383.02
    toluene 37.46
    isobutanol 135.97
    1,4-dioxane 429.49
    methyl acetate 383.55
    THF 783.34
    2-butanone 324.17
    n-pentanol 117.47
    sec-butanol 149.32
    n-hexane 2.68
    ethylene glycol 79.35
    NMP 244.9
    cyclohexane 2.04
    DMSO 357.98
    n-butyl acetate 149.88
    n-octanol 57.77
    chloroform 159.54
    n-propyl acetate 169.16
    acetic acid 234.11
    dichloromethane 242.86
    cyclohexanone 181.67
    propylene glycol 69.75
    isopropyl acetate 168.66
    DMAc 250.87
    2-ethoxyethanol 270.7
    isopentanol 143.82
    n-heptane 6.58
    ethyl formate 212.79
    1,2-dichloroethane 196.85
    n-hexanol 136.77
    2-methoxyethanol 422.88
    isobutyl acetate 85.7
    tetrachloromethane 25.1
    n-pentyl acetate 77.35
    transcutol 714.63
    n-heptanol 65.49
    ethylbenzene 26.6
    MIBK 138.58
    2-propoxyethanol 272.21
    tert-butanol 278.96
    MTBE 198.05
    2-butoxyethanol 147.87
    propionic acid 197.53
    o-xylene 31.69
    formic acid 176.55
    diethyl ether 243.12
    m-xylene 40.25
    p-xylene 33.29
    chlorobenzene 62.94
    dimethyl carbonate 123.01
    n-octane 3.75
    formamide 373.41
    cyclopentanone 418.39
    2-pentanone 257.17
    anisole 112.09
    cyclopentyl methyl ether 180.06
    gamma-butyrolactone 547.32
    1-methoxy-2-propanol 280.43
    pyridine 166.12
    3-pentanone 144.55
    furfural 285.2
    n-dodecane 3.85
    diethylene glycol 210.74
    diisopropyl ether 52.35
    tert-amyl alcohol 172.25
    acetylacetone 257.97
    n-hexadecane 4.26
    acetophenone 94.81
    methyl propionate 266.65
    isopentyl acetate 120.46
    trichloroethylene 302.64
    n-nonanol 51.46
    cyclohexanol 65.98
    benzyl alcohol 78.37
    2-ethylhexanol 65.53
    isooctanol 52.89
    dipropyl ether 79.78
    1,2-dichlorobenzene 60.4
    ethyl lactate 71.97
    propylene carbonate 204.43
    n-methylformamide 344.08
    2-pentanol 116.18
    n-pentane 3.22
    1-propoxy-2-propanol 147.09
    1-methoxy-2-propyl acetate 166.05
    2-(2-methoxypropoxy) propanol 130.68
    mesitylene 26.64
    ε-caprolactone 194.81
    p-cymene 26.32
    epichlorohydrin 589.89
    1,1,1-trichloroethane 134.12
    2-aminoethanol 141.39
    morpholine-4-carbaldehyde 300.45
    sulfolane 348.53
    2,2,4-trimethylpentane 4.91
    2-methyltetrahydrofuran 355.4
    n-hexyl acetate 107.83
    isooctane 5.72
    2-(2-butoxyethoxy)ethanol 196.07
    sec-butyl acetate 103.25
    tert-butyl acetate 188.26
    decalin 4.44
    glycerin 108.11
    diglyme 350.51
    acrylic acid 155.17
    isopropyl myristate 45.48
    n-butyric acid 221.87
    acetyl acetate 164.84
    di(2-ethylhexyl) phthalate 41.67
    ethyl propionate 137.68
    nitromethane 551.42
    1,2-diethoxyethane 191.43
    benzonitrile 84.63
    trioctyl phosphate 33.01
    1-bromopropane 75.14
    gamma-valerolactone 405.33
    n-decanol 39.38
    triethyl phosphate 50.12
    4-methyl-2-pentanol 72.91
    propionitrile 201.51
    vinylene carbonate 162.72
    1,1,2-trichlorotrifluoroethane 196.59
    DMS 101.2
    cumene 23.81
    2-octanol 41.92
    2-hexanone 139.14
    octyl acetate 56.97
    limonene 34.2
    1,2-dimethoxyethane 321.0
    ethyl orthosilicate 46.64
    tributyl phosphate 39.45
    diacetone alcohol 221.51
    N,N-dimethylaniline 63.55
    acrylonitrile 236.61
    aniline 73.67
    1,3-propanediol 216.32
    bromobenzene 50.57
    dibromomethane 112.0
    1,1,2,2-tetrachloroethane 166.58
    2-methyl-cyclohexyl acetate 73.36
    tetrabutyl urea 49.14
    diisobutyl methanol 44.22
    2-phenylethanol 89.52
    styrene 30.85
    dioctyl adipate 62.2
    dimethyl sulfate 153.32
    ethyl butyrate 106.4
    methyl lactate 99.28
    butyl lactate 60.01
    diethyl carbonate 73.42
    propanediol butyl ether 111.47
    triethyl orthoformate 65.92
    p-tert-butyltoluene 27.31
    methyl 4-tert-butylbenzoate 92.42
    morpholine 432.41
    tert-butylamine 116.91
    n-dodecanol 29.7
    dimethoxymethane 357.18
    ethylene carbonate 135.23
    cyrene 118.76
    2-ethoxyethyl acetate 149.98
    2-ethylhexyl acetate 85.2
    1,2,4-trichlorobenzene 73.12
    4-methylpyridine 135.12
    dibutyl ether 60.57
    2,6-dimethyl-4-heptanol 44.22
    DEF 200.75
    dimethyl isosorbide 206.2
    tetrachloroethylene 108.09
    eugenol 97.57
    triacetin 109.77
    span 80 87.19
    1,4-butanediol 82.58
    1,1-dichloroethane 174.03
    2-methyl-1-pentanol 93.14
    methyl formate 272.91
    2-methyl-1-butanol 118.38
    n-decane 6.17
    butyronitrile 170.11
    3,7-dimethyl-1-octanol 57.84
    1-chlorooctane 29.83
    1-chlorotetradecane 12.64
    n-nonane 5.27
    undecane 4.76
    tert-butylcyclohexane 6.46
    cyclooctane 1.52
    cyclopentanol 117.76
    tetrahydropyran 259.12
    tert-amyl methyl ether 118.67
    2,5,8-trioxanonane 224.42
    1-hexene 21.85
    2-isopropoxyethanol 175.34
    2,2,2-trifluoroethanol 114.09
    methyl butyrate 163.12

    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