Basic Brown 16

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  • Identifiers

    CAS number
    26381-41-9

    Molecular formula
    C19H21ClN4O

    SMILES
    C[N+](C)(C)C1=CC2=C(C=C1)C=CC(=C2N=NC3=CC=C(C=C3)N)O.[Cl-]

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Fruity 40.8%
    Grape 33.28%
    Animal 32.84%
    Floral 31.71%
    Sweet 29.22%
    Neroli 28.32%
    Citrus 25.15%
    Burnt 23.81%
    Fatty 23.6%
    Meaty 23.09%

     

    Flavor
    Bitter 66.24%
    Mild 21.26%
    Odorless 20.29%
    Very strong 20.16%
    Nitrile 19.96%
    Indole 19.75%
    Cedarleaf 19.74%
    Green pepper 19.48%
    Scallion 19.25%
    Carrot 19.04%

     

    Odor impact est.
    Odorless

  • Properties

    pKa est.
    6.12 (neutral)

    Molecular weight
    356.8 g/mol

    Flash point

    • 73.68 ˚C est.

  • Synonyms

    • Basic brown 16
    • 26381-41-9
    • Arianor Mahogany
    • UNII-QEJ5GK0TG1
    • QEJ5GK0TG1
    • C.I. 12250
    • EINECS 247-640-9
    • C.I. BASIC BROWN 16
    • DTXSID20874043
    • ARIANOR MAHOGANY 306002
    • ARIANOR MAHOGANY-306002
    • CI 12250
    • 8-(4'-Aminophenylazo)-7-hydroxy-2-naphthyltrimethylammonium chloride
    • 2-Naphthalenaminium, 8-(2-(4-aminophenyl)diazenyl)-7-hydroxy-N,N,N-trimethyl-, chloride (1:1)
    • 2-Naphthalenaminium, 8-[2-(4-aminophenyl)diazenyl]-7-hydroxy-N,N,N-trimethyl-, chloride (1:1)
    • RefChem:116618
    • BASIC BROWN 16 [INCI]
    • DTXCID501012178
    • 247-640-9
    • [8-[(4-aminophenyl)diazenyl]-7-hydroxynaphthalen-2-yl]-trimethylazanium;chloride
    • Basic Brown
    • 2-Naphthalenaminium, 8-[(4-aminophenyl)azo]-7-hydroxy-N,N,N-trimethyl-, chloride
    • Arianor Mahogany (Technical Grade)
    • Ammonium, (8-((p-aminophenyl)azo)-7-hydroxy-2-naphthyl)trimethyl-, chloride
    • 2-Naphthalenaminium, 8-((4-aminophenyl)azo)-7-hydroxy-N,N,N-trimethyl-, chloride
    • 8-((4-Aminophenyl)diazenyl)-7-hydroxy-N,N,N-trimethylnaphthalen-2-aminium chloride
    • 8-[(4-Aminophenyl)diazenyl]-7-hydroxy-N,N,N-trimethylnaphthalen-2-aminium Chloride
    • BASICBROWN16
    • SCHEMBL456873
    • SCHEMBL456874
    • SCHEMBL29350973
    • SCHEMBL29390777
    • MFCD07776999
    • (8-((p-Aminophenyl)azo)-7-hydroxy-2-naphthyl)trimethylammonium chloride
    • SY426407
    • NS00051262
    • F84236
    • Q27287223
    • 26381-41-9

  • Applications

    Basic Brown 16 (CAS 26381-41-9) is a cationic dye used primarily as a colorant in textiles; it is commonly used to dye natural fibers and some synthetic fibers such as wool, silk, and nylon, and is also employed in leather finishing and dyeing, as well as in printing inks and coatings, and may be evaluated for paper coloration or as a colorant for plastics and other materials.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 23.88
    methanol 29.54
    isopropanol 10.07
    water 0.06
    ethyl acetate 42.92
    n-propanol 20.67
    acetone 45.1
    n-butanol 13.07
    acetonitrile 23.81
    DMF 164.03
    toluene 7.85
    isobutanol 8.17
    1,4-dioxane 47.27
    methyl acetate 54.11
    THF 185.9
    2-butanone 52.93
    n-pentanol 8.42
    sec-butanol 9.46
    n-hexane 0.14
    ethylene glycol 11.34
    NMP 99.86
    cyclohexane 0.23
    DMSO 180.36
    n-butyl acetate 16.59
    n-octanol 1.77
    chloroform 122.44
    n-propyl acetate 20.42
    acetic acid 93.21
    dichloromethane 113.8
    cyclohexanone 43.14
    propylene glycol 19.2
    isopropyl acetate 19.15
    DMAc 174.85
    2-ethoxyethanol 54.91
    isopentanol 7.92
    n-heptane 0.22
    ethyl formate 37.95
    1,2-dichloroethane 58.88
    n-hexanol 6.91
    2-methoxyethanol 136.83
    isobutyl acetate 10.2
    tetrachloromethane 4.05
    n-pentyl acetate 9.08
    transcutol 149.88
    n-heptanol 3.81
    ethylbenzene 2.19
    MIBK 11.78
    2-propoxyethanol 55.71
    tert-butanol 9.4
    MTBE 7.4
    2-butoxyethanol 25.57
    propionic acid 37.76
    o-xylene 3.19
    formic acid 54.79
    diethyl ether 10.73
    m-xylene 3.56
    p-xylene 3.16
    chlorobenzene 19.14
    dimethyl carbonate 54.43
    n-octane 0.08
    formamide 111.4
    cyclopentanone 123.02
    2-pentanone 29.23
    anisole 16.83
    cyclopentyl methyl ether 25.23
    gamma-butyrolactone 166.99
    1-methoxy-2-propanol 77.76
    pyridine 83.74
    3-pentanone 23.01
    furfural 152.24
    n-dodecane 0.06
    diethylene glycol 52.66
    diisopropyl ether 1.53
    tert-amyl alcohol 8.61
    acetylacetone 58.26
    n-hexadecane 0.07
    acetophenone 23.26
    methyl propionate 59.34
    isopentyl acetate 13.79
    trichloroethylene 209.59
    n-nonanol 2.18
    cyclohexanol 7.38
    benzyl alcohol 21.22
    2-ethylhexanol 3.7
    isooctanol 3.11
    dipropyl ether 7.51
    1,2-dichlorobenzene 17.19
    ethyl lactate 22.46
    propylene carbonate 62.71
    n-methylformamide 96.37
    2-pentanol 5.93
    n-pentane 0.18
    1-propoxy-2-propanol 31.34
    1-methoxy-2-propyl acetate 45.4
    2-(2-methoxypropoxy) propanol 24.49
    mesitylene 1.47
    ε-caprolactone 49.9
    p-cymene 2.2
    epichlorohydrin 246.92
    1,1,1-trichloroethane 24.06
    2-aminoethanol 24.71
    morpholine-4-carbaldehyde 126.25
    sulfolane 175.73
    2,2,4-trimethylpentane 0.14
    2-methyltetrahydrofuran 44.31
    n-hexyl acetate 8.0
    isooctane 0.09
    2-(2-butoxyethoxy)ethanol 36.46
    sec-butyl acetate 10.9
    tert-butyl acetate 17.97
    decalin 0.18
    glycerin 43.99
    diglyme 96.98
    acrylic acid 51.68
    isopropyl myristate 2.7
    n-butyric acid 46.65
    acetyl acetate 31.29
    di(2-ethylhexyl) phthalate 5.57
    ethyl propionate 20.17
    nitromethane 240.25
    1,2-diethoxyethane 18.94
    benzonitrile 15.92
    trioctyl phosphate 3.33
    1-bromopropane 12.29
    gamma-valerolactone 183.25
    n-decanol 1.5
    triethyl phosphate 10.8
    4-methyl-2-pentanol 3.3
    propionitrile 18.86
    vinylene carbonate 62.95
    1,1,2-trichlorotrifluoroethane 201.54
    DMS 23.32
    cumene 1.55
    2-octanol 1.56
    2-hexanone 14.65
    octyl acetate 4.09
    limonene 2.54
    1,2-dimethoxyethane 74.98
    ethyl orthosilicate 9.1
    tributyl phosphate 4.48
    diacetone alcohol 34.27
    N,N-dimethylaniline 9.82
    acrylonitrile 42.87
    aniline 29.94
    1,3-propanediol 32.9
    bromobenzene 15.34
    dibromomethane 39.88
    1,1,2,2-tetrachloroethane 121.28
    2-methyl-cyclohexyl acetate 11.96
    tetrabutyl urea 5.37
    diisobutyl methanol 2.15
    2-phenylethanol 18.59
    styrene 3.88
    dioctyl adipate 7.09
    dimethyl sulfate 97.52
    ethyl butyrate 15.77
    methyl lactate 53.21
    butyl lactate 14.19
    diethyl carbonate 14.23
    propanediol butyl ether 17.98
    triethyl orthoformate 14.75
    p-tert-butyltoluene 2.13
    methyl 4-tert-butylbenzoate 17.72
    morpholine 86.7
    tert-butylamine 3.08
    n-dodecanol 1.02
    dimethoxymethane 113.07
    ethylene carbonate 42.32
    cyrene 35.55
    2-ethoxyethyl acetate 27.21
    2-ethylhexyl acetate 9.72
    1,2,4-trichlorobenzene 30.3
    4-methylpyridine 49.5
    dibutyl ether 2.54
    2,6-dimethyl-4-heptanol 2.15
    DEF 46.2
    dimethyl isosorbide 52.24
    tetrachloroethylene 55.64
    eugenol 21.05
    triacetin 20.94
    span 80 17.74
    1,4-butanediol 8.98
    1,1-dichloroethane 32.08
    2-methyl-1-pentanol 6.52
    methyl formate 85.23
    2-methyl-1-butanol 7.98
    n-decane 0.11
    butyronitrile 13.93
    3,7-dimethyl-1-octanol 2.29
    1-chlorooctane 0.84
    1-chlorotetradecane 0.31
    n-nonane 0.08
    undecane 0.08
    tert-butylcyclohexane 0.17
    cyclooctane 0.09
    cyclopentanol 15.01
    tetrahydropyran 28.49
    tert-amyl methyl ether 6.57
    2,5,8-trioxanonane 52.67
    1-hexene 1.1
    2-isopropoxyethanol 27.25
    2,2,2-trifluoroethanol 33.93
    methyl butyrate 26.65

    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