3,4-dihydro-6-methylnaphthalen-1(2H)-one

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  • Identifiers

    CAS number
    51015-29-3

    Molecular formula
    C11H12O

    SMILES
    CC1=CC2=C(C=C1)C(=O)CCC2

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Floral 58.83%
    Sweet 45.88%
    Animal 42.5%
    Powdery 39.66%
    Coumarinic 39.62%
    Hay 38.77%
    Musk 35.31%
    Phenolic 34.77%
    Woody 34.21%
    Tobacco 33.05%

     

    Flavor
    Bitter 43.83%
    Sweet 29.0%
    Minty 28.56%
    Tonka 27.26%
    Phenolic 27.24%
    Coumarin 24.52%
    Herbal 24.11%
    Animal 23.18%
    Tobacco 22.98%
    Medicinal 22.0%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    2.4

    pKa est.
    7.41 (neutral)

    Molecular weight
    160.21 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very slow

    Boiling point est.
    285°C

    Flash point

    • 110.02 ˚C est.

  • Synonyms

    • 6-METHYL-1-TETRALONE
    • 51015-29-3
    • 1(2H)-Naphthalenone, 3,4-dihydro-6-methyl-
    • 3,4-Dihydro-6-methylnaphthalen-1(2H)-one
    • EINECS 256-913-1
    • HTW3PM158Y
    • DTXSID0068608
    • RefChem:486196
    • DTXCID6040955
    • 256-913-1
    • 6-methyl-3,4-dihydronaphthalen-1(2h)-one
    • 6-methyl-3,4-dihydro-2H-naphthalen-1-one
    • MFCD00049168
    • 6-METHYL-1,2,3,4-TETRAHYDRONAPHTHALEN-1-ONE
    • 6-methyl-2,3,4-trihydronaphthalen-1-one
    • 6-methyltetralin-1-one
    • UNII-HTW3PM158Y
    • 6-methyltetralone
    • SCHEMBL1027718
    • 3,4-dihydro-6-methyl naphthalenone
    • SBB017371
    • AKOS006271808
    • CS-W004312
    • DS-7401
    • MB00436
    • ST078346
    • SY106237
    • 3,4-dihydro-6-methyl-1(2h)-naphthalenon
    • 6-methyl-3,4-dihydro-1(2H)-naphthalenone
    • DB-359579
    • NS00012247
    • I10918
    • F456448
    • 6-Methyl-3 pound not4-dihydronaphthalen-1(2H)-one
    • Q27280097
    • F9994-5204
    • 51015-29-3

  • Applications

    3,4-dihydro-6-methylnaphthalen-1(2H)-one (CAS 51015-29-3) is a tetralone-derived compound with primary uses as a fragrance intermediate and odorant precursor in perfumery, enabling the development of woody and musky notes. It may also be used as an industrial synthesis intermediate and building block in chemical manufacturing, and can serve as a synthetic intermediate in pharmaceuticals or agrochemicals. Additionally, it may function as a fragrance ingredient in cosmetics/personal care and can be used as an aroma additive in household cleaning products.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 229.4
    methanol 193.25
    isopropanol 163.66
    water 0.7
    ethyl acetate 622.61
    n-propanol 201.71
    acetone 843.51
    n-butanol 196.42
    acetonitrile 966.0
    DMF 1249.46
    toluene 603.04
    isobutanol 143.62
    1,4-dioxane 1379.2
    methyl acetate 642.08
    THF 1193.21
    2-butanone 651.71
    n-pentanol 130.17
    sec-butanol 134.08
    n-hexane 46.83
    ethylene glycol 41.93
    NMP 871.41
    cyclohexane 122.53
    DMSO 646.91
    n-butyl acetate 581.08
    n-octanol 158.79
    chloroform 2596.05
    n-propyl acetate 378.23
    acetic acid 273.53
    dichloromethane 3342.49
    cyclohexanone 1200.82
    propylene glycol 39.57
    isopropyl acetate 294.61
    DMAc 545.81
    2-ethoxyethanol 190.71
    isopentanol 165.66
    n-heptane 71.57
    ethyl formate 571.32
    1,2-dichloroethane 1761.2
    n-hexanol 261.23
    2-methoxyethanol 323.28
    isobutyl acetate 216.83
    tetrachloromethane 311.99
    n-pentyl acetate 295.61
    transcutol 969.01
    n-heptanol 133.58
    ethylbenzene 258.16
    MIBK 279.75
    2-propoxyethanol 363.05
    tert-butanol 187.49
    MTBE 233.22
    2-butoxyethanol 207.2
    propionic acid 254.09
    o-xylene 295.56
    formic acid 63.83
    diethyl ether 446.66
    m-xylene 350.59
    p-xylene 297.97
    chlorobenzene 807.86
    dimethyl carbonate 275.89
    n-octane 34.23
    formamide 184.92
    cyclopentanone 1292.69
    2-pentanone 552.74
    anisole 429.11
    cyclopentyl methyl ether 508.64
    gamma-butyrolactone 1366.36
    1-methoxy-2-propanol 232.97
    pyridine 1180.46
    3-pentanone 453.3
    furfural 1026.27
    n-dodecane 30.82
    diethylene glycol 231.83
    diisopropyl ether 123.85
    tert-amyl alcohol 141.1
    acetylacetone 606.95
    n-hexadecane 37.34
    acetophenone 403.5
    methyl propionate 483.1
    isopentyl acetate 385.71
    trichloroethylene 2764.24
    n-nonanol 137.5
    cyclohexanol 255.39
    benzyl alcohol 269.81
    2-ethylhexanol 180.02
    isooctanol 111.4
    dipropyl ether 312.51
    1,2-dichlorobenzene 649.41
    ethyl lactate 137.62
    propylene carbonate 695.66
    n-methylformamide 575.89
    2-pentanol 120.64
    n-pentane 46.28
    1-propoxy-2-propanol 253.66
    1-methoxy-2-propyl acetate 376.41
    2-(2-methoxypropoxy) propanol 243.42
    mesitylene 207.26
    ε-caprolactone 831.67
    p-cymene 171.04
    epichlorohydrin 1535.49
    1,1,1-trichloroethane 1119.93
    2-aminoethanol 76.35
    morpholine-4-carbaldehyde 936.19
    sulfolane 1001.38
    2,2,4-trimethylpentane 23.01
    2-methyltetrahydrofuran 752.85
    n-hexyl acetate 426.72
    isooctane 23.49
    2-(2-butoxyethoxy)ethanol 327.63
    sec-butyl acetate 220.52
    tert-butyl acetate 276.73
    decalin 56.87
    glycerin 65.82
    diglyme 702.31
    acrylic acid 244.43
    isopropyl myristate 174.49
    n-butyric acid 356.28
    acetyl acetate 368.32
    di(2-ethylhexyl) phthalate 146.69
    ethyl propionate 322.47
    nitromethane 912.76
    1,2-diethoxyethane 508.42
    benzonitrile 645.06
    trioctyl phosphate 106.64
    1-bromopropane 713.23
    gamma-valerolactone 1348.86
    n-decanol 109.74
    triethyl phosphate 155.39
    4-methyl-2-pentanol 82.91
    propionitrile 619.12
    vinylene carbonate 746.5
    1,1,2-trichlorotrifluoroethane 461.14
    DMS 397.92
    cumene 162.11
    2-octanol 106.77
    2-hexanone 351.38
    octyl acetate 211.7
    limonene 232.92
    1,2-dimethoxyethane 589.69
    ethyl orthosilicate 139.53
    tributyl phosphate 142.47
    diacetone alcohol 247.0
    N,N-dimethylaniline 252.51
    acrylonitrile 837.66
    aniline 406.05
    1,3-propanediol 137.74
    bromobenzene 936.76
    dibromomethane 1859.01
    1,1,2,2-tetrachloroethane 1500.18
    2-methyl-cyclohexyl acetate 246.66
    tetrabutyl urea 188.0
    diisobutyl methanol 111.04
    2-phenylethanol 299.24
    styrene 337.71
    dioctyl adipate 227.18
    dimethyl sulfate 344.91
    ethyl butyrate 379.53
    methyl lactate 141.81
    butyl lactate 179.54
    diethyl carbonate 265.57
    propanediol butyl ether 168.22
    triethyl orthoformate 206.93
    p-tert-butyltoluene 147.46
    methyl 4-tert-butylbenzoate 293.75
    morpholine 1053.68
    tert-butylamine 138.8
    n-dodecanol 91.62
    dimethoxymethane 680.43
    ethylene carbonate 633.07
    cyrene 232.35
    2-ethoxyethyl acetate 399.52
    2-ethylhexyl acetate 324.85
    1,2,4-trichlorobenzene 639.35
    4-methylpyridine 1052.03
    dibutyl ether 286.36
    2,6-dimethyl-4-heptanol 111.04
    DEF 588.43
    dimethyl isosorbide 473.5
    tetrachloroethylene 945.91
    eugenol 262.51
    triacetin 360.07
    span 80 212.06
    1,4-butanediol 59.82
    1,1-dichloroethane 1372.82
    2-methyl-1-pentanol 128.49
    methyl formate 574.51
    2-methyl-1-butanol 145.81
    n-decane 49.01
    butyronitrile 554.45
    3,7-dimethyl-1-octanol 147.28
    1-chlorooctane 185.23
    1-chlorotetradecane 81.33
    n-nonane 50.33
    undecane 38.35
    tert-butylcyclohexane 46.44
    cyclooctane 44.62
    cyclopentanol 262.17
    tetrahydropyran 967.58
    tert-amyl methyl ether 168.19
    2,5,8-trioxanonane 444.68
    1-hexene 163.53
    2-isopropoxyethanol 151.64
    2,2,2-trifluoroethanol 129.95
    methyl butyrate 438.68

    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