1-Methyl-7-isopropylnaphthalene

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  • Identifiers

    CAS number
    490-65-3

    Molecular formula
    C14H16

    SMILES
    CC1=C2C=C(C=CC2=CC=C1)C(C)C

    Safety labels

  • Odor profile

    Fragrance
    Herbal 63.09%
    Spicy 61.4%
    Woody 57.7%
    Earthy 44.55%
    Green 43.67%
    Leathery 41.42%
    Phenolic 40.71%
    Citrus 36.31%
    Terpenic 35.25%
    Fresh 32.71%

     

    Flavor
    Woody 41.71%
    Spice 35.95%
    Medicinal 33.99%
    Camphor 29.43%
    Wood 28.37%
    Spicy 27.38%
    Herbal 26.12%
    Herb 25.58%
    Phenolic 25.38%
    Gasoline 24.08%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    5.2

    pKa est.
    8.08 (weak base)

    Molecular weight
    184.28 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very slow

    Boiling point est.
    290°C

    Flash point

    • 122.92 ˚C est.

  • Synonyms

    • 1-METHYL-7-ISOPROPYLNAPHTHALENE
    • 490-65-3
    • DTXSID10197657
    • RefChem:1055829
    • DTXCID70120148
    • Eudalene
    • Eudalin
    • 1-methyl-7-propan-2-ylnaphthalene
    • Naphthalene, 1-methyl-7-(1-methylethyl)-
    • Naphthalene, 7-isopropyl-1-methyl-
    • 1-Methyl-7-(1-methylethyl)naphthalene
    • 1-methyl-7-(propan-2-yl)naphthalene
    • SCHEMBL5026892
    • UZVVHZJKXPCUQU-UHFFFAOYSA-N
    • 7-Isopropyl-1-methylnaphthalene #
    • NSC115864
    • AKOS006280706
    • NSC 115864
    • NSC-115864
    • 490-65-3

  • Applications

    1-Methyl-7-isopropylnaphthalene (CAS 490-65-3) is used primarily as an odorant in perfumery, functioning as a fragrance ingredient with a distinctive profile; it is also evaluated for use in cosmetics/personal care formulations where fragrance components are required; in household products it can serve as a fragrance additive; in industrial manufacturing it may be employed as an intermediate in the synthesis of fragrance-related chemicals; and in coatings and inks it is considered as a fragrance/odorant additive depending on formulation and regulatory constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 293.35
    methanol 122.47
    isopropanol 178.68
    water 0.02
    ethyl acetate 1444.84
    n-propanol 302.01
    acetone 1218.84
    n-butanol 323.58
    acetonitrile 558.1
    DMF 862.74
    toluene 1695.44
    isobutanol 189.82
    1,4-dioxane 2718.79
    methyl acetate 977.13
    THF 3559.37
    2-butanone 1385.73
    n-pentanol 236.72
    sec-butanol 204.87
    n-hexane 502.22
    ethylene glycol 8.83
    NMP 597.06
    cyclohexane 483.65
    DMSO 300.85
    n-butyl acetate 2506.54
    n-octanol 187.25
    chloroform 1877.89
    n-propyl acetate 819.35
    acetic acid 107.74
    dichloromethane 2859.12
    cyclohexanone 1781.17
    propylene glycol 18.84
    isopropyl acetate 699.88
    DMAc 580.47
    2-ethoxyethanol 230.9
    isopentanol 258.16
    n-heptane 531.64
    ethyl formate 469.15
    1,2-dichloroethane 2338.21
    n-hexanol 662.82
    2-methoxyethanol 307.92
    isobutyl acetate 587.04
    tetrachloromethane 300.99
    n-pentyl acetate 626.6
    transcutol 1156.08
    n-heptanol 190.09
    ethylbenzene 778.94
    MIBK 564.66
    2-propoxyethanol 652.62
    tert-butanol 232.99
    MTBE 1004.34
    2-butoxyethanol 255.44
    propionic acid 145.95
    o-xylene 519.11
    formic acid 9.39
    diethyl ether 2385.85
    m-xylene 707.85
    p-xylene 808.61
    chlorobenzene 927.96
    dimethyl carbonate 273.64
    n-octane 150.85
    formamide 40.89
    cyclopentanone 1807.3
    2-pentanone 1302.77
    anisole 992.51
    cyclopentyl methyl ether 1513.56
    gamma-butyrolactone 1264.75
    1-methoxy-2-propanol 230.06
    pyridine 2333.79
    3-pentanone 1164.69
    furfural 674.01
    n-dodecane 68.0
    diethylene glycol 131.96
    diisopropyl ether 483.63
    tert-amyl alcohol 217.27
    acetylacetone 893.7
    n-hexadecane 83.94
    acetophenone 573.28
    methyl propionate 864.01
    isopentyl acetate 1631.44
    trichloroethylene 2891.23
    n-nonanol 185.36
    cyclohexanol 301.44
    benzyl alcohol 287.87
    2-ethylhexanol 587.83
    isooctanol 157.13
    dipropyl ether 2413.53
    1,2-dichlorobenzene 597.09
    ethyl lactate 98.67
    propylene carbonate 572.37
    n-methylformamide 236.56
    2-pentanol 213.66
    n-pentane 231.1
    1-propoxy-2-propanol 513.65
    1-methoxy-2-propyl acetate 1013.45
    2-(2-methoxypropoxy) propanol 255.41
    mesitylene 339.76
    ε-caprolactone 1158.59
    p-cymene 438.26
    epichlorohydrin 2080.99
    1,1,1-trichloroethane 1291.47
    2-aminoethanol 33.31
    morpholine-4-carbaldehyde 813.94
    sulfolane 606.13
    2,2,4-trimethylpentane 74.0
    2-methyltetrahydrofuran 2416.56
    n-hexyl acetate 746.47
    isooctane 67.21
    2-(2-butoxyethoxy)ethanol 359.94
    sec-butyl acetate 518.64
    tert-butyl acetate 661.54
    decalin 195.81
    glycerin 21.05
    diglyme 1059.36
    acrylic acid 90.75
    isopropyl myristate 304.57
    n-butyric acid 338.71
    acetyl acetate 528.02
    di(2-ethylhexyl) phthalate 170.12
    ethyl propionate 726.39
    nitromethane 371.23
    1,2-diethoxyethane 1916.71
    benzonitrile 543.92
    trioctyl phosphate 124.39
    1-bromopropane 1776.36
    gamma-valerolactone 1488.55
    n-decanol 144.9
    triethyl phosphate 262.92
    4-methyl-2-pentanol 126.04
    propionitrile 602.77
    vinylene carbonate 483.9
    1,1,2-trichlorotrifluoroethane 254.27
    DMS 491.84
    cumene 375.39
    2-octanol 139.6
    2-hexanone 953.54
    octyl acetate 349.15
    limonene 662.76
    1,2-dimethoxyethane 1312.65
    ethyl orthosilicate 287.99
    tributyl phosphate 176.97
    diacetone alcohol 301.14
    N,N-dimethylaniline 552.56
    acrylonitrile 505.04
    aniline 556.53
    1,3-propanediol 88.74
    bromobenzene 1304.59
    dibromomethane 2013.51
    1,1,2,2-tetrachloroethane 1507.25
    2-methyl-cyclohexyl acetate 627.73
    tetrabutyl urea 251.4
    diisobutyl methanol 254.98
    2-phenylethanol 508.5
    styrene 968.62
    dioctyl adipate 355.9
    dimethyl sulfate 214.94
    ethyl butyrate 1399.19
    methyl lactate 76.67
    butyl lactate 173.24
    diethyl carbonate 648.27
    propanediol butyl ether 108.55
    triethyl orthoformate 662.88
    p-tert-butyltoluene 395.45
    methyl 4-tert-butylbenzoate 337.24
    morpholine 2302.18
    tert-butylamine 225.96
    n-dodecanol 121.68
    dimethoxymethane 1044.53
    ethylene carbonate 448.32
    cyrene 205.11
    2-ethoxyethyl acetate 770.65
    2-ethylhexyl acetate 1514.18
    1,2,4-trichlorobenzene 600.87
    4-methylpyridine 2059.75
    dibutyl ether 1087.0
    2,6-dimethyl-4-heptanol 254.98
    DEF 1182.85
    dimethyl isosorbide 717.5
    tetrachloroethylene 925.05
    eugenol 250.43
    triacetin 370.95
    span 80 216.54
    1,4-butanediol 29.39
    1,1-dichloroethane 1508.03
    2-methyl-1-pentanol 238.8
    methyl formate 210.24
    2-methyl-1-butanol 241.42
    n-decane 140.95
    butyronitrile 779.85
    3,7-dimethyl-1-octanol 213.76
    1-chlorooctane 407.35
    1-chlorotetradecane 145.39
    n-nonane 156.31
    undecane 94.68
    tert-butylcyclohexane 172.64
    cyclooctane 199.74
    cyclopentanol 244.54
    tetrahydropyran 3475.57
    tert-amyl methyl ether 623.61
    2,5,8-trioxanonane 571.49
    1-hexene 1295.96
    2-isopropoxyethanol 203.93
    2,2,2-trifluoroethanol 24.77
    methyl butyrate 912.04

    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