1-Methyltetraline

Overview IFRA Request a quote

  • Identifiers

    CAS number
    1559-81-5

    Molecular formula
    C11H14

    SMILES
    CC1CCCC2=CC=CC=C12

    Safety labels

  • Odor profile

    Fragrance
    Woody 54.36%
    Spicy 45.16%
    Herbal 44.84%
    Citrus 38.59%
    Sweet 37.91%
    Earthy 37.67%
    Dry 35.88%
    Camphoreous 31.07%
    Animal 31.04%
    Green 30.46%

     

    Flavor
    Sweet 34.41%
    Dry 30.34%
    Pungent 25.5%
    Wood 25.0%
    Rose 24.76%
    Plastic 24.38%
    Tar 23.75%
    Tarry 23.66%
    Spice 23.62%
    Earthy 22.91%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    3.6

    pKa est.
    8.16 (weak base)

    Molecular weight
    146.23 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Boiling point est.
    214°C

    Flash point

    • 81.7 ˚C est.

  • Synonyms

    • 1-METHYLTETRALINE
    • 1559-81-5
    • DTXSID60870887
    • RefChem:1055898
    • DTXCID80818569
    • 1-Methyl-1,2,3,4-tetrahydronaphthalene
    • METHYLTETRALIN
    • Naphthalene, 1,2,3,4-tetrahydro-1-methyl-
    • .alpha.-Methyltetralin
    • Methyltetralin [Czech]
    • 1-METHYLTETRALIN
    • 1,2,3,4-Tetrahydromethylnaphthalene
    • Naphthalene, 1,2,3,4-tetrahydromethyl-
    • Naphthalene, tetrahydromethyl-
    • starbld0020656
    • SCHEMBL321745
    • SCHEMBL466344
    • SCHEMBL812885
    • SCHEMBL1567153
    • SCHEMBL3110702
    • SCHEMBL4812053
    • SCHEMBL5614243
    • SCHEMBL5685244
    • SCHEMBL9092601
    • SCHEMBL25378607
    • SCHEMBL29977975
    • AKOS006331138
    • 31291-71-1
    • 1-Methyl-1,2,3,4-tetrahydronaphthalene #
    • 1559-81-5

  • Applications

    1-Methyltetraline (CAS 1559-81-5) is used primarily as an organic solvent and as an intermediate in industrial synthesis. It can serve as a processing solvent for coatings, inks, and adhesive formulations, and it can function as a building block for specialty fragrance-related chemicals. It is sometimes evaluated as a precursor for aromatic compounds used in polymers and plastics under appropriate controls. In perfumery and cosmetics, it may be employed as a fragrance solvent or ingredient where permitted by local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 463.09
    methanol 412.65
    isopropanol 322.07
    water 0.13
    ethyl acetate 1399.32
    n-propanol 442.85
    acetone 1369.68
    n-butanol 453.61
    acetonitrile 1220.28
    DMF 955.13
    toluene 1207.93
    isobutanol 317.47
    1,4-dioxane 3137.7
    methyl acetate 1129.4
    THF 2946.88
    2-butanone 1150.11
    n-pentanol 336.61
    sec-butanol 278.74
    n-hexane 415.09
    ethylene glycol 38.44
    NMP 978.24
    cyclohexane 566.55
    DMSO 962.77
    n-butyl acetate 2534.23
    n-octanol 293.47
    chloroform 2747.19
    n-propyl acetate 1082.36
    acetic acid 252.3
    dichloromethane 3321.48
    cyclohexanone 1942.05
    propylene glycol 49.01
    isopropyl acetate 783.56
    DMAc 549.95
    2-ethoxyethanol 415.88
    isopentanol 398.31
    n-heptane 376.83
    ethyl formate 719.59
    1,2-dichloroethane 2576.34
    n-hexanol 751.35
    2-methoxyethanol 566.48
    isobutyl acetate 676.15
    tetrachloromethane 681.2
    n-pentyl acetate 700.84
    transcutol 1993.35
    n-heptanol 290.5
    ethylbenzene 491.07
    MIBK 677.71
    2-propoxyethanol 997.88
    tert-butanol 422.76
    MTBE 987.26
    2-butoxyethanol 432.84
    propionic acid 324.54
    o-xylene 471.0
    formic acid 45.65
    diethyl ether 2015.1
    m-xylene 614.88
    p-xylene 547.62
    chlorobenzene 1338.14
    dimethyl carbonate 390.61
    n-octane 141.92
    formamide 102.53
    cyclopentanone 1904.77
    2-pentanone 1108.2
    anisole 837.73
    cyclopentyl methyl ether 1562.23
    gamma-butyrolactone 1807.5
    1-methoxy-2-propanol 460.45
    pyridine 1897.97
    3-pentanone 965.57
    furfural 1156.1
    n-dodecane 93.4
    diethylene glycol 378.23
    diisopropyl ether 565.87
    tert-amyl alcohol 301.03
    acetylacetone 1045.78
    n-hexadecane 111.15
    acetophenone 573.14
    methyl propionate 884.33
    isopentyl acetate 1459.56
    trichloroethylene 3021.23
    n-nonanol 266.22
    cyclohexanol 511.62
    benzyl alcohol 334.52
    2-ethylhexanol 590.84
    isooctanol 264.96
    dipropyl ether 1476.16
    1,2-dichlorobenzene 998.27
    ethyl lactate 205.7
    propylene carbonate 980.09
    n-methylformamide 443.7
    2-pentanol 311.32
    n-pentane 285.32
    1-propoxy-2-propanol 762.41
    1-methoxy-2-propyl acetate 1049.32
    2-(2-methoxypropoxy) propanol 401.3
    mesitylene 416.12
    ε-caprolactone 1483.43
    p-cymene 348.85
    epichlorohydrin 2375.08
    1,1,1-trichloroethane 1994.54
    2-aminoethanol 88.02
    morpholine-4-carbaldehyde 1261.41
    sulfolane 1572.76
    2,2,4-trimethylpentane 108.35
    2-methyltetrahydrofuran 2063.87
    n-hexyl acetate 821.04
    isooctane 127.07
    2-(2-butoxyethoxy)ethanol 596.27
    sec-butyl acetate 597.54
    tert-butyl acetate 883.51
    decalin 220.32
    glycerin 74.97
    diglyme 1345.86
    acrylic acid 227.15
    isopropyl myristate 377.54
    n-butyric acid 626.74
    acetyl acetate 710.15
    di(2-ethylhexyl) phthalate 222.1
    ethyl propionate 810.23
    nitromethane 870.02
    1,2-diethoxyethane 1830.18
    benzonitrile 814.02
    trioctyl phosphate 189.68
    1-bromopropane 1720.77
    gamma-valerolactone 1854.91
    n-decanol 216.25
    triethyl phosphate 331.55
    4-methyl-2-pentanol 222.28
    propionitrile 1090.58
    vinylene carbonate 927.48
    1,1,2-trichlorotrifluoroethane 570.54
    DMS 648.51
    cumene 290.36
    2-octanol 218.45
    2-hexanone 975.44
    octyl acetate 427.26
    limonene 565.38
    1,2-dimethoxyethane 1502.27
    ethyl orthosilicate 345.5
    tributyl phosphate 274.77
    diacetone alcohol 507.04
    N,N-dimethylaniline 434.78
    acrylonitrile 1061.4
    aniline 661.58
    1,3-propanediol 204.57
    bromobenzene 1719.75
    dibromomethane 2404.85
    1,1,2,2-tetrachloroethane 1943.33
    2-methyl-cyclohexyl acetate 595.45
    tetrabutyl urea 341.49
    diisobutyl methanol 346.76
    2-phenylethanol 545.4
    styrene 670.09
    dioctyl adipate 395.32
    dimethyl sulfate 454.77
    ethyl butyrate 1317.45
    methyl lactate 187.28
    butyl lactate 302.57
    diethyl carbonate 660.01
    propanediol butyl ether 249.24
    triethyl orthoformate 674.36
    p-tert-butyltoluene 326.63
    methyl 4-tert-butylbenzoate 426.53
    morpholine 2273.03
    tert-butylamine 340.71
    n-dodecanol 184.77
    dimethoxymethane 1163.05
    ethylene carbonate 932.96
    cyrene 311.43
    2-ethoxyethyl acetate 845.58
    2-ethylhexyl acetate 1316.59
    1,2,4-trichlorobenzene 958.65
    4-methylpyridine 1732.73
    dibutyl ether 1030.87
    2,6-dimethyl-4-heptanol 346.76
    DEF 1047.48
    dimethyl isosorbide 863.4
    tetrachloroethylene 1394.04
    eugenol 366.04
    triacetin 486.35
    span 80 339.0
    1,4-butanediol 82.34
    1,1-dichloroethane 2120.45
    2-methyl-1-pentanol 299.68
    methyl formate 469.3
    2-methyl-1-butanol 344.35
    n-decane 150.5
    butyronitrile 1108.46
    3,7-dimethyl-1-octanol 319.41
    1-chlorooctane 463.4
    1-chlorotetradecane 195.15
    n-nonane 168.52
    undecane 115.28
    tert-butylcyclohexane 208.35
    cyclooctane 256.71
    cyclopentanol 475.32
    tetrahydropyran 2787.95
    tert-amyl methyl ether 586.77
    2,5,8-trioxanonane 773.22
    1-hexene 932.09
    2-isopropoxyethanol 354.58
    2,2,2-trifluoroethanol 90.5
    methyl butyrate 1066.06

    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