Ethanone, 1-(2,5-dimethylphenyl)-

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  • Identifiers

    CAS number
    2142-73-6

    Molecular formula
    C10H12O

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

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Floral 87.16%
    Sweet 82.58%
    Powdery 55.13%
    Hawthorn 55.07%
    Hay 54.04%
    Coumarinic 50.13%
    Cherry 46.65%
    Phenolic 43.15%
    Nutty 42.56%
    Neroli 41.56%

     

    Flavor
    Sweet 75.13%
    Woody 56.88%
    Floral 51.03%
    Phenolic 42.54%
    Powdery 39.99%
    Tobacco 36.57%
    Mimosa 35.76%
    Hawthorn 33.97%
    Spicy 32.85%
    Dry 32.16%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.3

    pKa est.
    7.84 (neutral)

    Molecular weight
    148.2 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    223°C

    Flash point

    • 93.05 ˚C est.

  • Synonyms

    • 2142-73-6
    • 1-(2,5-Dimethylphenyl)ethanone
    • Ethanone, 1-(2,5-dimethylphenyl)-
    • 1-(2,5-Dimethylphenyl)ethan-1-one
    • Acetophenone, 2',5'-dimethyl-
    • AI3-01857
    • DTXSID6062202
    • NSC 6325
    • EINECS 218-399-7
    • RefChem:592442
    • DTXCID5036476
    • Acetophenone, 2',5'-dimethyl-(8CI)
    • 218-399-7
    • InChI=1/C10H12O/c1-7-4-5-8(2)10(6-7)9(3)11/h4-6H,1-3H
    • 2',5'-Dimethylacetophenone
    • 2,5-Dimethylacetophenone
    • MFCD00014988
    • 2.5-Dimethylacetophenone
    • NSC-6325
    • 1-acetyl-2,5-dimethylbenzene
    • 2-Acetyl-p-xylene
    • NSC6325
    • 1-(2,5-dimethylphenyl)-Ethanone; 2',5'-dimethyl-Acetophenone (6CI,7CI,8CI); 1-(2,5-Dimethylphenyl)ethanone; 1-Acetyl-2,5-dimethylbenzene; 2,5-Dimethylacetophenone; NSC 6325
    • YX9C3B7KVG
    • 2,5-dimethyl-acetophenone
    • Acetophenone,5'-dimethyl-
    • Ethanone,5-dimethylphenyl)-
    • SCHEMBL697905
    • SCHEMBL2092006
    • SCHEMBL8054303
    • SCHEMBL29636568
    • 2',5'-Dimethylacetophenone, 97%
    • 1-(2,5-Dimethylphenyl)ethanone #
    • SBB058819
    • STK397469
    • AKOS000120561
    • 2,5-(CH3)2C6H3-COCH3
    • FD71095
    • SY011585
    • DB-020121
    • CS-0153347
    • D1880
    • NS00026865
    • ST50331352
    • EN300-21050
    • F002546
    • F0001-0768
    • Z104486864
    • 2 inverted exclamation mark ,5 inverted exclamation mark -Dimethylacetophenone
    • 2142-73-6

  • Applications

    Ethanone, 1-(2,5-dimethylphenyl)-, CAS 2142-73-6, is an acetophenone-type aryl ketone. It is commonly used as a chemical intermediate in organic synthesis and as a fragrance-related ingredient. In the fragrance and cosmetics sectors, it can serve as an odorant or precursor for further aroma compound synthesis; in household products, it may be used as a fragrance additive for cleaners and air fresheners; in coatings and inks, it can be employed to impart fragrance in decorative finishes and packaging; in industrial manufacturing, it functions as an intermediate for preparing other organic chemicals used across various industries. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1116.78
    methanol 1255.88
    isopropanol 986.95
    water 7.61
    ethyl acetate 1369.68
    n-propanol 1111.52
    acetone 1721.83
    n-butanol 986.77
    acetonitrile 1765.49
    DMF 2069.56
    toluene 754.88
    isobutanol 807.13
    1,4-dioxane 2958.81
    methyl acetate 1470.38
    THF 3129.1
    2-butanone 1455.95
    n-pentanol 617.32
    sec-butanol 881.08
    n-hexane 412.4
    ethylene glycol 295.92
    NMP 1368.39
    cyclohexane 373.11
    DMSO 1270.57
    n-butyl acetate 679.54
    n-octanol 511.95
    chloroform 3000.26
    n-propyl acetate 630.2
    acetic acid 512.84
    dichloromethane 2696.19
    cyclohexanone 1784.01
    propylene glycol 335.26
    isopropyl acetate 688.66
    DMAc 1088.83
    2-ethoxyethanol 790.27
    isopentanol 702.97
    n-heptane 179.59
    ethyl formate 802.76
    1,2-dichloroethane 1982.8
    n-hexanol 914.23
    2-methoxyethanol 1343.84
    isobutyl acetate 397.52
    tetrachloromethane 546.83
    n-pentyl acetate 468.06
    transcutol 1211.66
    n-heptanol 414.62
    ethylbenzene 501.6
    MIBK 666.67
    2-propoxyethanol 1177.75
    tert-butanol 976.57
    MTBE 1126.51
    2-butoxyethanol 555.99
    propionic acid 723.38
    o-xylene 473.31
    formic acid 190.85
    diethyl ether 1666.46
    m-xylene 545.09
    p-xylene 544.79
    chlorobenzene 795.87
    dimethyl carbonate 480.21
    n-octane 109.68
    formamide 342.96
    cyclopentanone 2086.31
    2-pentanone 1278.19
    anisole 838.35
    cyclopentyl methyl ether 1556.45
    gamma-butyrolactone 1984.28
    1-methoxy-2-propanol 1094.93
    pyridine 1284.47
    3-pentanone 1023.19
    furfural 1140.97
    n-dodecane 81.57
    diethylene glycol 747.92
    diisopropyl ether 416.4
    tert-amyl alcohol 814.49
    acetylacetone 1047.83
    n-hexadecane 94.27
    acetophenone 565.48
    methyl propionate 1137.42
    isopentyl acetate 542.84
    trichloroethylene 2483.51
    n-nonanol 397.46
    cyclohexanol 893.68
    benzyl alcohol 489.77
    2-ethylhexanol 464.95
    isooctanol 308.53
    dipropyl ether 630.11
    1,2-dichlorobenzene 649.24
    ethyl lactate 288.55
    propylene carbonate 902.31
    n-methylformamide 1075.71
    2-pentanol 719.66
    n-pentane 276.7
    1-propoxy-2-propanol 708.95
    1-methoxy-2-propyl acetate 598.59
    2-(2-methoxypropoxy) propanol 370.66
    mesitylene 334.76
    ε-caprolactone 1298.71
    p-cymene 216.04
    epichlorohydrin 2350.26
    1,1,1-trichloroethane 1597.04
    2-aminoethanol 475.8
    morpholine-4-carbaldehyde 1529.22
    sulfolane 1576.67
    2,2,4-trimethylpentane 106.87
    2-methyltetrahydrofuran 2126.92
    n-hexyl acetate 794.23
    isooctane 91.58
    2-(2-butoxyethoxy)ethanol 587.15
    sec-butyl acetate 436.94
    tert-butyl acetate 639.99
    decalin 186.06
    glycerin 380.44
    diglyme 1085.74
    acrylic acid 526.72
    isopropyl myristate 276.1
    n-butyric acid 840.07
    acetyl acetate 594.29
    di(2-ethylhexyl) phthalate 182.32
    ethyl propionate 641.29
    nitromethane 1290.05
    1,2-diethoxyethane 722.89
    benzonitrile 643.52
    trioctyl phosphate 169.14
    1-bromopropane 1310.0
    gamma-valerolactone 2031.31
    n-decanol 297.84
    triethyl phosphate 214.07
    4-methyl-2-pentanol 364.9
    propionitrile 1240.31
    vinylene carbonate 793.17
    1,1,2-trichlorotrifluoroethane 821.45
    DMS 560.71
    cumene 325.31
    2-octanol 348.76
    2-hexanone 778.74
    octyl acetate 371.12
    limonene 330.54
    1,2-dimethoxyethane 1475.67
    ethyl orthosilicate 208.39
    tributyl phosphate 187.71
    diacetone alcohol 667.74
    N,N-dimethylaniline 517.55
    acrylonitrile 1276.53
    aniline 681.39
    1,3-propanediol 684.25
    bromobenzene 868.5
    dibromomethane 1912.61
    1,1,2,2-tetrachloroethane 1969.32
    2-methyl-cyclohexyl acetate 336.78
    tetrabutyl urea 244.15
    diisobutyl methanol 231.67
    2-phenylethanol 511.46
    styrene 564.23
    dioctyl adipate 292.92
    dimethyl sulfate 656.11
    ethyl butyrate 454.71
    methyl lactate 430.58
    butyl lactate 281.83
    diethyl carbonate 296.87
    propanediol butyl ether 446.98
    triethyl orthoformate 288.92
    p-tert-butyltoluene 221.59
    methyl 4-tert-butylbenzoate 406.91
    morpholine 2651.41
    tert-butylamine 670.77
    n-dodecanol 228.22
    dimethoxymethane 1514.3
    ethylene carbonate 741.87
    cyrene 364.27
    2-ethoxyethyl acetate 520.37
    2-ethylhexyl acetate 435.39
    1,2,4-trichlorobenzene 658.16
    4-methylpyridine 1352.71
    dibutyl ether 598.47
    2,6-dimethyl-4-heptanol 231.67
    DEF 1228.97
    dimethyl isosorbide 617.67
    tetrachloroethylene 1244.72
    eugenol 406.1
    triacetin 411.9
    span 80 351.61
    1,4-butanediol 303.94
    1,1-dichloroethane 1968.97
    2-methyl-1-pentanol 494.86
    methyl formate 914.63
    2-methyl-1-butanol 732.82
    n-decane 140.87
    butyronitrile 1165.51
    3,7-dimethyl-1-octanol 354.88
    1-chlorooctane 458.5
    1-chlorotetradecane 173.61
    n-nonane 155.96
    undecane 104.17
    tert-butylcyclohexane 179.95
    cyclooctane 160.33
    cyclopentanol 995.28
    tetrahydropyran 2462.94
    tert-amyl methyl ether 819.98
    2,5,8-trioxanonane 605.36
    1-hexene 898.27
    2-isopropoxyethanol 567.92
    2,2,2-trifluoroethanol 266.13
    methyl butyrate 800.0

    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