Naphthalen-1-ethanol

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  • Identifiers

    CAS number
    773-99-9

    Molecular formula
    C12H12O

    SMILES
    C1=CC=C2C(=C1)C=CC=C2CCO

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Floral 93.86%
    Rose 83.56%
    Honey 57.17%
    Sweet 50.62%
    Balsamic 45.48%
    Hyacinth 43.08%
    Geranium 40.55%
    Green 36.3%
    Waxy 34.11%
    Lily 32.64%

     

    Flavor
    Floral 74.35%
    Sweet 72.57%
    Rose 62.44%
    Honey 52.61%
    Balsam 45.69%
    Hyacinth 45.14%
    Fruity 42.01%
    Bitter 36.94%
    Flower 33.18%
    Powdery 33.16%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    3.2

    pKa est.
    7.55 (neutral)

    Molecular weight
    172.22 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    339°C

    Flash point

    • 164.61 ˚C est.

  • Synonyms

    • 1-Naphthaleneethanol
    • 773-99-9
    • 2-(1-Naphthyl)ethanol
    • 2-(naphthalen-1-yl)ethanol
    • 1-(2-HYDROXYETHYL)NAPHTHALENE
    • Naphthalen-1-ethanol
    • 2-naphthalen-1-ylethanol
    • 1-naphthalene ethanol
    • MFCD00004050
    • EINECS 212-260-4
    • 2-(naphthalen-1-yl)ethan-1-ol
    • DTXSID00228020
    • NSC 28342
    • 1-napthaleneethanol
    • NSC28342
    • 2-(1-naphthy)ethanol
    • 2-(naphth-1-yl)ethanol
    • 2-(1-Naphthalene)ethanol
    • 2-naphthalen-1-yl-ethanol
    • 1-Naphthaleneethanol, 95%
    • SCHEMBL27550
    • 2-(1-naphthyl)-1-ethanol
    • 2-(.alpha.-Naphthyl)ethanol
    • 1-(2-hydroxy-ethyl)-naphthalene
    • DTXCID20150511
    • AC1462
    • NSC-28342
    • naphthalene-1-thanol; Naphthyelthanol
    • AKOS009158187
    • AC-4486
    • CS-W017592
    • FN14794
    • FS-1800
    • HY-W016876
    • SY020508
    • DB-005046
    • DB-312249
    • N0575
    • NS00037916
    • EN300-1637768
    • AQ-917/40233986
    • Z397587504
    • 212-260-4

  • Applications

    Naphthalen-1-ethanol (CAS 773-99-9) is mainly used as an aromatic intermediate and fragrance ingredient. In perfumery and cosmetics, its naphthyl moiety provides woody, balsamic notes and it can act as a scent component or fixative in complex formulations. It is also a synthetic intermediate for preparing naphthyl-containing dyes and pigments, and as a reactive polyol for polyurethane and other polymer systems, enabling crosslinking or chain extension. In coatings and inks, it can serve as a resin precursor or additive in specialty formulations. In industrial manufacturing, it is employed as a building block for subsequent chemical syntheses of diverse specialty chemicals. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 3406.83
    methanol 4094.08
    isopropanol 1472.69
    water 0.48
    ethyl acetate 4559.49
    n-propanol 2677.96
    acetone 9539.03
    n-butanol 1553.23
    acetonitrile 6178.45
    DMF 6119.68
    toluene 1279.1
    isobutanol 1174.42
    1,4-dioxane 10627.51
    methyl acetate 4374.16
    THF 8615.62
    2-butanone 4285.95
    n-pentanol 738.0
    sec-butanol 886.31
    n-hexane 99.8
    ethylene glycol 401.6
    NMP 2435.45
    cyclohexane 165.53
    DMSO 8634.14
    n-butyl acetate 1789.14
    n-octanol 256.7
    chloroform 4047.73
    n-propyl acetate 1769.72
    acetic acid 1353.96
    dichloromethane 7703.5
    cyclohexanone 4159.37
    propylene glycol 254.68
    isopropyl acetate 1210.7
    DMAc 1528.84
    2-ethoxyethanol 1445.26
    isopentanol 722.07
    n-heptane 116.56
    ethyl formate 2746.84
    1,2-dichloroethane 7857.21
    n-hexanol 845.91
    2-methoxyethanol 3508.01
    isobutyl acetate 646.9
    tetrachloromethane 488.52
    n-pentyl acetate 608.66
    transcutol 2894.69
    n-heptanol 289.65
    ethylbenzene 415.43
    MIBK 847.8
    2-propoxyethanol 1715.67
    tert-butanol 1036.74
    MTBE 1191.28
    2-butoxyethanol 571.48
    propionic acid 1377.47
    o-xylene 410.4
    formic acid 390.09
    diethyl ether 4587.23
    m-xylene 512.59
    p-xylene 370.87
    chlorobenzene 1287.63
    dimethyl carbonate 1077.52
    n-octane 41.15
    formamide 1833.96
    cyclopentanone 6449.27
    2-pentanone 3577.94
    anisole 1014.4
    cyclopentyl methyl ether 3046.84
    gamma-butyrolactone 7083.31
    1-methoxy-2-propanol 1496.53
    pyridine 4770.92
    3-pentanone 2345.88
    furfural 2520.26
    n-dodecane 24.62
    diethylene glycol 918.48
    diisopropyl ether 378.59
    tert-amyl alcohol 541.44
    acetylacetone 2399.74
    n-hexadecane 29.66
    acetophenone 643.17
    methyl propionate 3315.07
    isopentyl acetate 955.67
    trichloroethylene 7792.19
    n-nonanol 203.34
    cyclohexanol 947.64
    benzyl alcohol 550.41
    2-ethylhexanol 388.81
    isooctanol 208.3
    dipropyl ether 1192.89
    1,2-dichlorobenzene 777.8
    ethyl lactate 272.2
    propylene carbonate 1778.4
    n-methylformamide 5629.21
    2-pentanol 627.27
    n-pentane 96.92
    1-propoxy-2-propanol 873.09
    1-methoxy-2-propyl acetate 1021.67
    2-(2-methoxypropoxy) propanol 264.29
    mesitylene 226.93
    ε-caprolactone 3021.65
    p-cymene 168.62
    epichlorohydrin 10423.97
    1,1,1-trichloroethane 2423.13
    2-aminoethanol 828.95
    morpholine-4-carbaldehyde 2943.35
    sulfolane 4445.46
    2,2,4-trimethylpentane 31.13
    2-methyltetrahydrofuran 5035.56
    n-hexyl acetate 689.4
    isooctane 29.82
    2-(2-butoxyethoxy)ethanol 536.86
    sec-butyl acetate 634.97
    tert-butyl acetate 772.28
    decalin 67.33
    glycerin 347.53
    diglyme 1754.68
    acrylic acid 920.31
    isopropyl myristate 182.64
    n-butyric acid 1825.91
    acetyl acetate 1106.55
    di(2-ethylhexyl) phthalate 116.9
    ethyl propionate 1263.28
    nitromethane 7457.43
    1,2-diethoxyethane 1723.34
    benzonitrile 874.07
    trioctyl phosphate 107.67
    1-bromopropane 2424.1
    gamma-valerolactone 5984.5
    n-decanol 146.2
    triethyl phosphate 208.26
    4-methyl-2-pentanol 221.72
    propionitrile 2921.59
    vinylene carbonate 1552.67
    1,1,2-trichlorotrifluoroethane 1526.03
    DMS 652.07
    cumene 180.19
    2-octanol 175.2
    2-hexanone 1476.46
    octyl acetate 247.02
    limonene 280.72
    1,2-dimethoxyethane 3528.7
    ethyl orthosilicate 200.43
    tributyl phosphate 141.33
    diacetone alcohol 731.07
    N,N-dimethylaniline 376.8
    acrylonitrile 3507.68
    aniline 1357.17
    1,3-propanediol 1255.29
    bromobenzene 1303.75
    dibromomethane 4007.33
    1,1,2,2-tetrachloroethane 4026.76
    2-methyl-cyclohexyl acetate 361.76
    tetrabutyl urea 194.76
    diisobutyl methanol 184.38
    2-phenylethanol 494.68
    styrene 584.19
    dioctyl adipate 234.85
    dimethyl sulfate 1077.57
    ethyl butyrate 960.41
    methyl lactate 442.45
    butyl lactate 280.51
    diethyl carbonate 478.09
    propanediol butyl ether 336.69
    triethyl orthoformate 394.67
    p-tert-butyltoluene 147.78
    methyl 4-tert-butylbenzoate 301.83
    morpholine 10089.6
    tert-butylamine 509.71
    n-dodecanol 109.99
    dimethoxymethane 5109.16
    ethylene carbonate 1654.6
    cyrene 328.84
    2-ethoxyethyl acetate 936.78
    2-ethylhexyl acetate 718.82
    1,2,4-trichlorobenzene 807.3
    4-methylpyridine 3258.68
    dibutyl ether 580.72
    2,6-dimethyl-4-heptanol 184.38
    DEF 2980.41
    dimethyl isosorbide 650.16
    tetrachloroethylene 2660.97
    eugenol 281.13
    triacetin 412.13
    span 80 236.26
    1,4-butanediol 324.6
    1,1-dichloroethane 4362.99
    2-methyl-1-pentanol 397.07
    methyl formate 4369.4
    2-methyl-1-butanol 731.79
    n-decane 47.35
    butyronitrile 2297.21
    3,7-dimethyl-1-octanol 204.52
    1-chlorooctane 246.65
    1-chlorotetradecane 75.29
    n-nonane 49.84
    undecane 33.45
    tert-butylcyclohexane 59.24
    cyclooctane 62.01
    cyclopentanol 1398.18
    tetrahydropyran 7653.62
    tert-amyl methyl ether 624.74
    2,5,8-trioxanonane 651.1
    1-hexene 546.05
    2-isopropoxyethanol 745.51
    2,2,2-trifluoroethanol 429.27
    methyl butyrate 1807.34

    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