4-Methylbenzophenone

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  • Identifiers

    CAS number
    134-84-9

    Molecular formula
    C14H12O

    SMILES
    CC1=CC=C(C=C1)C(=O)C2=CC=CC=C2

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Floral 72.24%
    Balsamic 54.26%
    Sweet 48.64%
    Herbal 42.05%
    Powdery 40.15%
    Neroli 38.33%
    Rose 38.3%
    Bitter 37.86%
    Cherry 36.97%
    Honey 36.68%

     

    Flavor
    Balsam 53.34%
    Bitter 45.39%
    Rose 38.3%
    Geranium 34.3%
    Honey 33.81%
    Phenolic 33.19%
    Apricot 31.94%
    Cherry 31.54%
    Powdery 31.38%
    Peach 30.15%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    3.8

    pKa est.
    7.01 (neutral)

    Molecular weight
    196.24 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    320°C

    Flash point

    • 137.02 ˚C est.

  • Synonyms

    • 4-Methylbenzophenone
    • 134-84-9
    • Methanone, (4-methylphenyl)phenyl-
    • B2F68X17BM
    • DTXSID9037741
    • NSC-4898
    • DTXCID7017741
    • RefChem:99849
    • 205-159-1
    • phenyl(p-tolyl)methanone
    • p-Methylbenzophenone
    • (4-Methylphenyl)(phenyl)methanone
    • p-Benzoyltoluene
    • Phenyl p-tolyl ketone
    • 4-Methyl benzophenone
    • (4-methylphenyl)-phenylmethanone
    • p-Benzophenone, methyl-
    • MFCD00008553
    • BENZOPHENONE, 4-METHYL-
    • USAF DO-54
    • (4-methylphenyl)phenylmethanone
    • 4-benzoyltoluene
    • NSC 4898
    • 4-methylphenyl phenyl ketone
    • 4-Methyl-Benzophenone
    • EINECS 205-159-1
    • UNII-B2F68X17BM
    • AI3-18452
    • NSC4898
    • 4-methybenzophenone
    • phenyl-p-tolyl-methanone
    • SCHEMBL235
    • WLN: 1R DVR
    • 4-Methylbenzophenone, 99%
    • SCHEMBL187634
    • SCHEMBL315202
    • SCHEMBL687394
    • CHEMBL371531
    • orb3029558
    • SCHEMBL2882742
    • SCHEMBL3282230
    • (4-Methyphenyl)(phenyl)methanone
    • MSK3435
    • (Phenyl)(4-methylphenyl)methanone
    • STR09876
    • Tox21_301629
    • AC7898
    • MSK3435-100M
    • SBB068369
    • AKOS003809024
    • MSK3435-1000M
    • CS-W010591
    • FM25788
    • PS-8267
    • 4-Methylbenzophenone, analytical standard
    • NCGC00164221-01
    • NCGC00255430-01
    • AC-11601
    • CAS-134-84-9
    • SY009656
    • DB-014507
    • M1248
    • NS00020472
    • ST50825393
    • EN300-20231
    • 134M849
    • AE-641/00364041
    • F079256
    • 4-Methylbenzophenone Solution in Methanol, 1000ug/mL
    • 4-Methylbenzophenone Solution in Methanol, 100ug/mL
    • Q27274279
    • Z104477368
    • Benzyl methyl sulfide, United States Pharmacopeia (USP) Reference Standard
    • 42343-24-8
    • 134-84-9

  • Applications

    4-Methylbenzophenone (CAS 134-84-9) is primarily used as an organic synthesis intermediate and as a precursor to other benzophenone derivatives. In industrial applications, it is often evaluated as a photoinitiator or co-initiator for UV-curing coatings and inks, enabling rapid curing of surface coatings and adhesives. It is also employed as a UV absorber/stabilizer in certain polymers and coating systems to improve lightfastness. Additionally, it can serve as a starting material for preparing specialty polymers and fragrance-related compounds, making it relevant across chemical manufacturing and materials applications. Use is typically subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 510.25
    methanol 395.75
    isopropanol 320.09
    water 1.36
    ethyl acetate 1753.47
    n-propanol 486.43
    acetone 1651.44
    n-butanol 413.5
    acetonitrile 1814.49
    DMF 2899.16
    toluene 507.71
    isobutanol 371.3
    1,4-dioxane 1393.05
    methyl acetate 1534.89
    THF 1124.39
    2-butanone 1775.3
    n-pentanol 257.39
    sec-butanol 345.4
    n-hexane 37.38
    ethylene glycol 77.73
    NMP 928.48
    cyclohexane 50.23
    DMSO 694.57
    n-butyl acetate 763.79
    n-octanol 147.0
    chloroform 2348.87
    n-propyl acetate 811.12
    acetic acid 581.9
    dichloromethane 2519.13
    cyclohexanone 1605.58
    propylene glycol 115.54
    isopropyl acetate 802.33
    DMAc 1896.48
    2-ethoxyethanol 466.09
    isopentanol 387.24
    n-heptane 29.36
    ethyl formate 843.71
    1,2-dichloroethane 2472.43
    n-hexanol 292.78
    2-methoxyethanol 849.38
    isobutyl acetate 474.09
    tetrachloromethane 111.07
    n-pentyl acetate 331.2
    transcutol 2501.71
    n-heptanol 154.47
    ethylbenzene 357.72
    MIBK 659.94
    2-propoxyethanol 522.92
    tert-butanol 370.4
    MTBE 567.25
    2-butoxyethanol 325.13
    propionic acid 549.65
    o-xylene 266.24
    formic acid 140.28
    diethyl ether 1133.51
    m-xylene 276.0
    p-xylene 382.42
    chlorobenzene 908.73
    dimethyl carbonate 612.1
    n-octane 17.82
    formamide 644.37
    cyclopentanone 1663.72
    2-pentanone 1326.71
    anisole 875.43
    cyclopentyl methyl ether 541.49
    gamma-butyrolactone 1565.08
    1-methoxy-2-propanol 625.75
    pyridine 2131.38
    3-pentanone 1068.29
    furfural 1385.42
    n-dodecane 15.78
    diethylene glycol 293.61
    diisopropyl ether 210.17
    tert-amyl alcohol 341.94
    acetylacetone 1245.36
    n-hexadecane 18.87
    acetophenone 754.57
    methyl propionate 1315.88
    isopentyl acetate 654.06
    trichloroethylene 4320.54
    n-nonanol 140.77
    cyclohexanol 292.66
    benzyl alcohol 460.48
    2-ethylhexanol 208.98
    isooctanol 146.6
    dipropyl ether 349.22
    1,2-dichlorobenzene 763.27
    ethyl lactate 250.71
    propylene carbonate 953.26
    n-methylformamide 1169.71
    2-pentanol 277.16
    n-pentane 25.74
    1-propoxy-2-propanol 390.32
    1-methoxy-2-propyl acetate 610.56
    2-(2-methoxypropoxy) propanol 356.73
    mesitylene 159.3
    ε-caprolactone 1182.58
    p-cymene 125.82
    epichlorohydrin 2318.33
    1,1,1-trichloroethane 1306.62
    2-aminoethanol 214.45
    morpholine-4-carbaldehyde 1173.89
    sulfolane 1038.92
    2,2,4-trimethylpentane 21.16
    2-methyltetrahydrofuran 805.02
    n-hexyl acetate 491.14
    isooctane 20.19
    2-(2-butoxyethoxy)ethanol 536.55
    sec-butyl acetate 541.27
    tert-butyl acetate 641.92
    decalin 49.41
    glycerin 152.51
    diglyme 1258.85
    acrylic acid 527.83
    isopropyl myristate 186.07
    n-butyric acid 826.13
    acetyl acetate 764.99
    di(2-ethylhexyl) phthalate 132.82
    ethyl propionate 805.82
    nitromethane 1947.34
    1,2-diethoxyethane 833.55
    benzonitrile 810.97
    trioctyl phosphate 92.04
    1-bromopropane 816.42
    gamma-valerolactone 1782.11
    n-decanol 106.31
    triethyl phosphate 198.97
    4-methyl-2-pentanol 177.99
    propionitrile 1227.25
    vinylene carbonate 1025.49
    1,1,2-trichlorotrifluoroethane 876.33
    DMS 574.78
    cumene 186.79
    2-octanol 110.3
    2-hexanone 766.08
    octyl acetate 228.31
    limonene 169.42
    1,2-dimethoxyethane 1172.95
    ethyl orthosilicate 183.0
    tributyl phosphate 146.8
    diacetone alcohol 586.57
    N,N-dimethylaniline 402.64
    acrylonitrile 1830.29
    aniline 586.89
    1,3-propanediol 329.17
    bromobenzene 876.56
    dibromomethane 1393.49
    1,1,2,2-tetrachloroethane 2674.14
    2-methyl-cyclohexyl acetate 331.8
    tetrabutyl urea 187.18
    diisobutyl methanol 135.26
    2-phenylethanol 361.0
    styrene 545.71
    dioctyl adipate 271.11
    dimethyl sulfate 612.65
    ethyl butyrate 588.87
    methyl lactate 362.16
    butyl lactate 232.87
    diethyl carbonate 413.75
    propanediol butyl ether 251.64
    triethyl orthoformate 296.01
    p-tert-butyltoluene 116.71
    methyl 4-tert-butylbenzoate 342.56
    morpholine 1419.7
    tert-butylamine 226.06
    n-dodecanol 83.51
    dimethoxymethane 1274.48
    ethylene carbonate 790.98
    cyrene 286.6
    2-ethoxyethyl acetate 534.85
    2-ethylhexyl acetate 487.84
    1,2,4-trichlorobenzene 789.01
    4-methylpyridine 1692.39
    dibutyl ether 327.51
    2,6-dimethyl-4-heptanol 135.26
    DEF 1473.18
    dimethyl isosorbide 603.4
    tetrachloroethylene 1316.78
    eugenol 351.14
    triacetin 452.76
    span 80 238.18
    1,4-butanediol 112.43
    1,1-dichloroethane 1715.01
    2-methyl-1-pentanol 283.97
    methyl formate 871.43
    2-methyl-1-butanol 364.1
    n-decane 25.33
    butyronitrile 1000.7
    3,7-dimethyl-1-octanol 181.9
    1-chlorooctane 153.23
    1-chlorotetradecane 59.8
    n-nonane 23.4
    undecane 19.44
    tert-butylcyclohexane 44.27
    cyclooctane 17.63
    cyclopentanol 258.3
    tetrahydropyran 1112.19
    tert-amyl methyl ether 391.28
    2,5,8-trioxanonane 730.5
    1-hexene 254.34
    2-isopropoxyethanol 329.54
    2,2,2-trifluoroethanol 240.51
    methyl butyrate 1076.28

    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