1-Naphthylamine

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  • Identifiers

    CAS number
    134-32-7

    Molecular formula
    C10H9N

    SMILES
    C1=CC=C2C(=C1)C=CC=C2N

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Floral 69.09%
    Sweet 51.65%
    Animal 45.41%
    Grape 36.77%
    Orange 33.15%
    Phenolic 31.95%
    Neroli 31.16%
    Honey 29.58%
    Musty 27.66%
    Rose 27.43%

     

    Flavor
    Phenolic 31.59%
    Plastic 29.73%
    Animal 29.34%
    Medicinal 27.74%
    Fecal 26.69%
    Geranium 26.4%
    Floral 25.59%
    Rubber 24.6%
    Tar 24.48%
    Moth ball 24.14%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    2.2

    pKa est.
    5.23 (weak acid)

    Molecular weight
    143.18 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very slow

    Melting point expt.

    • 122 °F (NTP, 1992)
    • 49.2 °C
    • 50.0 °C
    • 122 °F

    Boiling point

    • 574 °F at 760 mmHg (NTP, 1992)
    • 300.7 °C
    • 300.8 °C
    • 573 °F

    Flash point

    • 160.73 ˚C est.
    • 315 °F (NTP, 1992)
    • 157 °C
    • 157 °C, 315 °F, (closed cup)
    • 157 °C c.c.
    • 315 °F

    Solubility expt.

    • less than 1 mg/mL at 66 °F (NTP, 1992)
    • Crystal powder; becomes bluish on exposure to air and light. Sol in about 27 parts water; sol in alcohol and ether /Hydrochloride/
    • Sol in chloroform
    • Freely sol in alcohol and ether
    • In water, 1.7X10+3 mg/L @ 20 °C
    • Solubility in water: none
    • 0.002%

  • Synonyms

    • 1-NAPHTHYLAMINE
    • 1-Aminonaphthalene
    • 134-32-7
    • naphthalen-1-amine
    • 1-Naphthalenamine
    • alpha-Naphthylamine
    • Naphthalen-1-ylamine
    • Naphthalidine
    • Naphthalidam
    • 1-Naphthalamine
    • Fast Garnet Base B
    • 1-Naphthylamin
    • 1-Naftilamina
    • alpha-Aminonaphthalene
    • Alfanaftilamina
    • Fast Garnet B Base
    • 1-Aminonaftalen
    • 1-Naftylamine
    • 1-Naftylamin
    • Alfa-naftyloamina
    • RCRA waste number U167
    • .alpha.-Naphthylamine
    • alpha-Naftalamin
    • alpha-Naftylamin
    • C.I. Azoic Diazo Component 114
    • 1-Naftylamin [Czech]
    • 1-Naftylamine [Dutch]
    • 1-Aminonaftalen [Czech]
    • 1-Naftilamina [Spanish]
    • 1-Naphthylamin [German]
    • Alfanaftilamina [Italian]
    • alpha-Naftalamin [Czech]
    • alpha-Naftylamin [Czech]
    • alfa-Naftyloamina [Polish]
    • CCRIS 423
    • .alpha.-Aminonaphthalene
    • CI Azoic Diazo Component 114
    • CHEBI:50450
    • 1-Naphthylamine, technical grade
    • 1-naphtylamine
    • HSDB 1080
    • EINECS 205-138-7
    • UN2077
    • BRN 0386133
    • CI 37265
    • DTXSID7020920
    • AI3-00085
    • C.I. 37265
    • 1-NAPHTHYLAMINE [MI]
    • CHEMBL57394
    • DTXCID30920
    • 1-NAPHTHYLAMINE [HSDB]
    • 1-NAPHTHYLAMINE [IARC]
    • 9753I242R5
    • EC 205-138-7
    • 4-12-00-03009 (Beilstein Handbook Reference)
    • MFCD00004016
    • 1-Naphthylamine-d7
    • 1-Naftylamin (Czech)
    • Naphthalene, 1-amino-
    • alpha-Naftalamin (Czech)
    • alpha Naphthylamine
    • 25168-10-9
    • 1-NAFTYLAMINE (DUTCH)
    • 1-NAPHTHYLAMINE (IARC)
    • 1-AMINONAFTALEN (CZECH)
    • 1-NAFTILAMINA (SPANISH)
    • 1-NAPHTHYLAMIN (GERMAN)
    • ALPHA-NAFTYLAMIN (CZECH)
    • ALFANAFTILAMINA (ITALIAN)
    • ALFA-NAFTYLOAMINA (POLISH)
    • Naphthaleneamine
    • 1-Naphthylamine, analytical standard
    • 1 Naphthylamine
    • 1 Aminonaphthalene
    • 8 Aminonaphthalene
    • 8-Aminonaphthalene
    • CAS-134-32-7
    • 1-NAPHYLAMINE
    • RCRA waste no. U167
    • alphaNaftalamin
    • alphaNaftylamin
    • 1naphthylamine
    • aminonaphthalene
    • naphthyl-amine
    • alfaNaftyloamina
    • 1Aminonaftalen
    • 1Naphthalamine
    • 1Naphthylamin
    • 1Naftilamina
    • 1Naftylamin
    • 1Naftylamine
    • 1-napthylamine
    • 1Naphthalenamine
    • 1aminonaphthalene
    • alphanaphthylamine
    • 1-aminonaphthalen
    • 1-naphthyl amine
    • 1-naphthaleneamine
    • UNII-9753I242R5
    • 1-amino napthalene
    • 1-naphthalenylamine
    • .alpha.-Naftalamin
    • .alpha.-Naftylamin
    • alphaAminonaphthalene
    • naphthalen-1-yl-amine
    • SCHEMBL9029
    • NAPHTHYLAMINE (ALPHA)
    • 1Naphthylamine, technical grade
    • SCHEMBL7738276
    • SCHEMBL8059977
    • 1-Naphthylamine, >=99.0%
    • alpha-Naphthylamine (DOT:OSHA)
    • 1-Naphthylamine, p.a., 99.0%
    • DDA83253
    • DDA83256
    • Nitrate Reagent A, for microbiology
    • Tox21_201233
    • Tox21_302805
    • BBL013044
    • BDBM50282489
    • STK301604
    • AKOS000119159
    • FN26153
    • UN 2077
    • NCGC00091092-01
    • NCGC00091092-02
    • NCGC00091092-03

  • Applications

    1-Naphthylamine (CAS 134-32-7) is primarily used as an intermediate in the manufacture of azo dyes and pigments for textiles, inks, and coatings. It also serves as a chemical precursor in organic synthesis for various dye and pigment intermediates. In industrial manufacturing, it is used as a starting material for colorants intended for plastics and polymer coatings. It is sometimes employed in research settings as a synthetic building block for aromatic amines and related compounds.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 588.29
    methanol 524.32
    isopropanol 371.83
    water 1.27
    ethyl acetate 1190.03
    n-propanol 495.47
    acetone 1978.44
    n-butanol 422.1
    acetonitrile 1697.59
    DMF 1351.91
    toluene 261.96
    isobutanol 291.74
    1,4-dioxane 3753.83
    methyl acetate 1047.6
    THF 3967.37
    2-butanone 1203.09
    n-pentanol 224.36
    sec-butanol 208.53
    n-hexane 46.26
    ethylene glycol 24.77
    NMP 816.95
    cyclohexane 32.37
    DMSO 2156.05
    n-butyl acetate 992.56
    n-octanol 111.51
    chloroform 1047.04
    n-propyl acetate 690.07
    acetic acid 450.7
    dichloromethane 1359.36
    cyclohexanone 1320.51
    propylene glycol 17.13
    isopropyl acetate 432.08
    DMAc 507.97
    2-ethoxyethanol 386.36
    isopentanol 252.65
    n-heptane 43.47
    ethyl formate 734.14
    1,2-dichloroethane 1298.75
    n-hexanol 300.98
    2-methoxyethanol 657.64
    isobutyl acetate 344.76
    tetrachloromethane 191.86
    n-pentyl acetate 311.13
    transcutol 687.83
    n-heptanol 136.61
    ethylbenzene 111.42
    MIBK 366.29
    2-propoxyethanol 628.71
    tert-butanol 299.84
    MTBE 415.02
    2-butoxyethanol 259.83
    propionic acid 317.3
    o-xylene 92.64
    formic acid 113.26
    diethyl ether 1181.4
    m-xylene 127.8
    p-xylene 135.2
    chlorobenzene 350.59
    dimethyl carbonate 322.99
    n-octane 22.55
    formamide 391.25
    cyclopentanone 2248.0
    2-pentanone 1029.17
    anisole 317.97
    cyclopentyl methyl ether 985.98
    gamma-butyrolactone 2475.47
    1-methoxy-2-propanol 348.1
    pyridine 1345.18
    3-pentanone 624.64
    furfural 910.03
    n-dodecane 14.38
    diethylene glycol 254.27
    diisopropyl ether 149.24
    tert-amyl alcohol 167.23
    acetylacetone 784.1
    n-hexadecane 16.68
    acetophenone 216.96
    methyl propionate 762.07
    isopentyl acetate 522.8
    trichloroethylene 1692.82
    n-nonanol 94.82
    cyclohexanol 199.36
    benzyl alcohol 139.09
    2-ethylhexanol 149.74
    isooctanol 104.54
    dipropyl ether 427.44
    1,2-dichlorobenzene 225.13
    ethyl lactate 103.95
    propylene carbonate 719.58
    n-methylformamide 931.66
    2-pentanol 190.52
    n-pentane 30.59
    1-propoxy-2-propanol 341.01
    1-methoxy-2-propyl acetate 423.67
    2-(2-methoxypropoxy) propanol 118.01
    mesitylene 68.06
    ε-caprolactone 1059.14
    p-cymene 62.05
    epichlorohydrin 2996.77
    1,1,1-trichloroethane 790.46
    2-aminoethanol 78.26
    morpholine-4-carbaldehyde 1127.41
    sulfolane 1520.15
    2,2,4-trimethylpentane 13.07
    2-methyltetrahydrofuran 1909.25
    n-hexyl acetate 331.4
    isooctane 15.74
    2-(2-butoxyethoxy)ethanol 224.54
    sec-butyl acetate 268.7
    tert-butyl acetate 333.25
    decalin 23.1
    glycerin 45.39
    diglyme 609.21
    acrylic acid 222.4
    isopropyl myristate 91.54
    n-butyric acid 627.16
    acetyl acetate 411.37
    di(2-ethylhexyl) phthalate 54.59
    ethyl propionate 432.54
    nitromethane 2212.12
    1,2-diethoxyethane 584.95
    benzonitrile 303.79
    trioctyl phosphate 58.66
    1-bromopropane 558.29
    gamma-valerolactone 2221.29
    n-decanol 70.14
    triethyl phosphate 93.83
    4-methyl-2-pentanol 93.06
    propionitrile 809.25
    vinylene carbonate 638.61
    1,1,2-trichlorotrifluoroethane 411.5
    DMS 250.37
    cumene 64.61
    2-octanol 92.3
    2-hexanone 661.7
    octyl acetate 127.72
    limonene 98.96
    1,2-dimethoxyethane 1219.75
    ethyl orthosilicate 90.22
    tributyl phosphate 70.68
    diacetone alcohol 270.01
    N,N-dimethylaniline 137.45
    acrylonitrile 890.62
    aniline 243.54
    1,3-propanediol 234.9
    bromobenzene 356.51
    dibromomethane 815.58
    1,1,2,2-tetrachloroethane 904.91
    2-methyl-cyclohexyl acetate 173.84
    tetrabutyl urea 92.28
    diisobutyl methanol 85.02
    2-phenylethanol 187.47
    styrene 144.02
    dioctyl adipate 100.31
    dimethyl sulfate 414.63
    ethyl butyrate 426.66
    methyl lactate 119.75
    butyl lactate 125.5
    diethyl carbonate 206.47
    propanediol butyl ether 112.26
    triethyl orthoformate 183.13
    p-tert-butyltoluene 60.16
    methyl 4-tert-butylbenzoate 138.16
    morpholine 2585.82
    tert-butylamine 151.64
    n-dodecanol 53.92
    dimethoxymethane 1273.06
    ethylene carbonate 654.11
    cyrene 136.41
    2-ethoxyethyl acetate 408.83
    2-ethylhexyl acetate 398.35
    1,2,4-trichlorobenzene 227.08
    4-methylpyridine 986.61
    dibutyl ether 246.92
    2,6-dimethyl-4-heptanol 85.02
    DEF 806.6
    dimethyl isosorbide 309.67
    tetrachloroethylene 618.51
    eugenol 129.21
    triacetin 164.57
    span 80 108.09
    1,4-butanediol 59.81
    1,1-dichloroethane 949.95
    2-methyl-1-pentanol 137.78
    methyl formate 803.57
    2-methyl-1-butanol 214.51
    n-decane 25.9
    butyronitrile 797.69
    3,7-dimethyl-1-octanol 84.78
    1-chlorooctane 101.4
    1-chlorotetradecane 34.49
    n-nonane 26.02
    undecane 18.87
    tert-butylcyclohexane 26.26
    cyclooctane 15.42
    cyclopentanol 334.24
    tetrahydropyran 2185.58
    tert-amyl methyl ether 215.35
    2,5,8-trioxanonane 266.65
    1-hexene 195.91
    2-isopropoxyethanol 230.01
    2,2,2-trifluoroethanol 178.85
    methyl butyrate 644.4

    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