1,5-Dimethylnaphthalene

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  • Identifiers

    CAS number
    571-61-9

    Molecular formula
    C12H12

    SMILES
    CC1=C2C=CC=C(C2=CC=C1)C

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Floral 58.43%
    Woody 49.54%
    Green 41.19%
    Sweet 40.42%
    Earthy 38.57%
    Animal 37.06%
    Phenolic 36.64%
    Leathery 34.76%
    Oily 33.74%
    Camphoreous 33.67%

     

    Flavor
    Plastic 35.91%
    Phenolic 34.87%
    Medicinal 34.6%
    Naphthyl 30.3%
    Fecal 25.75%
    Animal 25.12%
    Camphor 24.49%
    Guaiacol 24.33%
    Chemical 23.42%
    Flat 21.97%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    4.4

    pKa est.
    7.39 (neutral)

    Molecular weight
    156.22 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Slow

    Boiling point est.
    267°C

    Flash point

    • 111.7 ˚C est.

  • Synonyms

    • 1,5-DIMETHYLNAPHTHALENE
    • 571-61-9
    • Naphthalene, 1,5-dimethyl-
    • 1,5-DMN
    • 1,5-dimethyl-naphthalene
    • UNII-60CM3233U9
    • CHEBI:48608
    • EINECS 209-338-5
    • MFCD00004038
    • NSC 59388
    • NSC-59388
    • 60CM3233U9
    • CHEMBL435106
    • DTXSID0060351
    • NSC59388
    • 1,5-Dimethylnaphthalin
    • Naphthalene,5-dimethyl-
    • Naphthalene, 1,5dimethyl
    • Naphthalene,1,5-dimethyl-
    • 1,5-Dimethylnaphthalene, 98%
    • DTXCID5042166
    • Naphthalene, 1,5-dimethyl-(8CI)
    • BDBM50159247
    • STL280252
    • AKOS005208625
    • AS-57959
    • Naphthalene, 1,5-dimethyl-(8CI)(9CI)
    • CS-0147061
    • D0748
    • D2764
    • NS00033654
    • A12656
    • Q27121286
    • 209-338-5

  • Applications

    1,5-Dimethylnaphthalene (CAS 571-61-9) is primarily used as an organic synthesis intermediate in the production of specialty chemicals, including dyes and pigments, and as a building block for aryl-rich polymers and high-temperature resins. It is often evaluated as a nonpolar aromatic precursor in various industrial syntheses and can serve as a reference material for analytical methods (GC/LC) used to characterize PAH-containing products. In coatings and inks, it may act as a processing intermediate or formulation component, and it is sometimes employed in quality-control workflows due to its chromatographic properties.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 210.42
    methanol 174.63
    isopropanol 170.04
    water 0.18
    ethyl acetate 1111.43
    n-propanol 238.26
    acetone 1203.93
    n-butanol 247.71
    acetonitrile 824.99
    DMF 1199.54
    toluene 1094.19
    isobutanol 186.35
    1,4-dioxane 3820.99
    methyl acetate 1058.13
    THF 3656.49
    2-butanone 1102.7
    n-pentanol 256.97
    sec-butanol 186.2
    n-hexane 565.78
    ethylene glycol 24.76
    NMP 1072.68
    cyclohexane 462.34
    DMSO 837.72
    n-butyl acetate 2136.99
    n-octanol 310.46
    chloroform 1852.68
    n-propyl acetate 1110.76
    acetic acid 144.08
    dichloromethane 2713.72
    cyclohexanone 1907.74
    propylene glycol 24.97
    isopropyl acetate 731.68
    DMAc 627.35
    2-ethoxyethanol 348.09
    isopentanol 237.24
    n-heptane 384.74
    ethyl formate 528.19
    1,2-dichloroethane 2563.65
    n-hexanol 553.56
    2-methoxyethanol 393.19
    isobutyl acetate 823.73
    tetrachloromethane 503.1
    n-pentyl acetate 806.1
    transcutol 1179.41
    n-heptanol 270.15
    ethylbenzene 801.59
    MIBK 672.57
    2-propoxyethanol 784.5
    tert-butanol 267.36
    MTBE 789.13
    2-butoxyethanol 394.61
    propionic acid 186.72
    o-xylene 538.6
    formic acid 23.84
    diethyl ether 1761.28
    m-xylene 644.11
    p-xylene 827.26
    chlorobenzene 922.42
    dimethyl carbonate 486.05
    n-octane 208.68
    formamide 77.32
    cyclopentanone 2209.92
    2-pentanone 1025.79
    anisole 1164.97
    cyclopentyl methyl ether 1804.31
    gamma-butyrolactone 2050.81
    1-methoxy-2-propanol 331.01
    pyridine 1770.15
    3-pentanone 1041.84
    furfural 989.61
    n-dodecane 119.26
    diethylene glycol 268.97
    diisopropyl ether 569.43
    tert-amyl alcohol 233.23
    acetylacetone 1003.71
    n-hexadecane 143.47
    acetophenone 730.86
    methyl propionate 888.06
    isopentyl acetate 1357.31
    trichloroethylene 2731.83
    n-nonanol 285.08
    cyclohexanol 362.04
    benzyl alcohol 328.93
    2-ethylhexanol 495.65
    isooctanol 238.45
    dipropyl ether 1505.86
    1,2-dichlorobenzene 738.72
    ethyl lactate 210.46
    propylene carbonate 894.23
    n-methylformamide 393.54
    2-pentanol 218.88
    n-pentane 237.6
    1-propoxy-2-propanol 589.83
    1-methoxy-2-propyl acetate 955.93
    2-(2-methoxypropoxy) propanol 328.37
    mesitylene 449.94
    ε-caprolactone 1481.48
    p-cymene 388.14
    epichlorohydrin 2761.47
    1,1,1-trichloroethane 1603.68
    2-aminoethanol 50.38
    morpholine-4-carbaldehyde 1502.85
    sulfolane 1579.46
    2,2,4-trimethylpentane 102.52
    2-methyltetrahydrofuran 2309.05
    n-hexyl acetate 991.48
    isooctane 115.13
    2-(2-butoxyethoxy)ethanol 499.92
    sec-butyl acetate 712.24
    tert-butyl acetate 832.72
    decalin 305.76
    glycerin 42.79
    diglyme 1251.54
    acrylic acid 143.64
    isopropyl myristate 449.0
    n-butyric acid 343.0
    acetyl acetate 601.06
    di(2-ethylhexyl) phthalate 204.18
    ethyl propionate 965.76
    nitromethane 712.09
    1,2-diethoxyethane 1764.56
    benzonitrile 624.8
    trioctyl phosphate 200.46
    1-bromopropane 1396.46
    gamma-valerolactone 2080.92
    n-decanol 234.75
    triethyl phosphate 372.52
    4-methyl-2-pentanol 164.62
    propionitrile 745.09
    vinylene carbonate 800.9
    1,1,2-trichlorotrifluoroethane 462.59
    DMS 853.27
    cumene 466.99
    2-octanol 238.66
    2-hexanone 1101.62
    octyl acetate 501.62
    limonene 572.17
    1,2-dimethoxyethane 1676.42
    ethyl orthosilicate 378.64
    tributyl phosphate 270.83
    diacetone alcohol 453.56
    N,N-dimethylaniline 684.88
    acrylonitrile 735.18
    aniline 470.37
    1,3-propanediol 115.36
    bromobenzene 1254.86
    dibromomethane 1897.57
    1,1,2,2-tetrachloroethane 1760.29
    2-methyl-cyclohexyl acetate 661.26
    tetrabutyl urea 380.39
    diisobutyl methanol 310.24
    2-phenylethanol 508.45
    styrene 891.82
    dioctyl adipate 449.23
    dimethyl sulfate 553.75
    ethyl butyrate 1195.0
    methyl lactate 161.78
    butyl lactate 271.74
    diethyl carbonate 639.74
    propanediol butyl ether 199.18
    triethyl orthoformate 643.37
    p-tert-butyltoluene 377.95
    methyl 4-tert-butylbenzoate 471.95
    morpholine 2365.09
    tert-butylamine 228.79
    n-dodecanol 199.07
    dimethoxymethane 1347.38
    ethylene carbonate 829.78
    cyrene 324.42
    2-ethoxyethyl acetate 922.92
    2-ethylhexyl acetate 1358.65
    1,2,4-trichlorobenzene 739.7
    4-methylpyridine 1662.12
    dibutyl ether 1110.22
    2,6-dimethyl-4-heptanol 310.24
    DEF 1190.29
    dimethyl isosorbide 854.38
    tetrachloroethylene 1253.79
    eugenol 393.06
    triacetin 497.8
    span 80 277.66
    1,4-butanediol 61.12
    1,1-dichloroethane 1575.38
    2-methyl-1-pentanol 239.64
    methyl formate 450.92
    2-methyl-1-butanol 217.35
    n-decane 208.3
    butyronitrile 710.78
    3,7-dimethyl-1-octanol 285.31
    1-chlorooctane 580.92
    1-chlorotetradecane 232.84
    n-nonane 234.26
    undecane 154.53
    tert-butylcyclohexane 278.3
    cyclooctane 258.89
    cyclopentanol 387.94
    tetrahydropyran 2877.25
    tert-amyl methyl ether 618.54
    2,5,8-trioxanonane 706.2
    1-hexene 1074.89
    2-isopropoxyethanol 330.72
    2,2,2-trifluoroethanol 73.57
    methyl butyrate 1127.46

    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

Botanical

Name CAS Botanical Proportion
Rhubarb root Rheum palmatum L., fam. Polygonaceae 0.01%