Basic Red 76

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  • Identifiers

    CAS number
    68391-30-0

    Molecular formula
    C20H22ClN3O2

    SMILES
    C[N+](C)(C)C1=CC2=C(C=C1)C=CC(=C2N=NC3=CC=CC=C3OC)O.[Cl-]

    Safety labels

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Floral 39.85%
    Fruity 37.04%
    Sweet 36.7%
    Neroli 27.53%
    Animal 27.52%
    Spicy 26.2%
    Powdery 25.91%
    Phenolic 25.49%
    Fresh 25.18%
    Citrus 24.15%

     

    Flavor
    Bitter 74.13%
    Bland 20.82%
    Cedarleaf 19.98%
    Green pepper 19.5%
    Carrot 19.36%
    Nitrile 19.11%
    Very strong 18.88%
    Parsley 18.87%
    Heather 18.82%
    Broom 18.8%

     

    Odor impact est.
    Odorless

  • Properties

    pKa est.
    7.28 (neutral)

    Molecular weight
    371.9 g/mol

    Flash point

    • 50.51 ˚C est.

  • Synonyms

    • Basic red 76
    • 68391-30-0
    • C.I. Basic Red 76
    • UNII-ES19W9WI76
    • ES19W9WI76
    • EINECS 269-941-4
    • JAROCOL MADDER RED
    • DTXSID10879784
    • ARIANOR MADDER RED 306003
    • CI 12245
    • C.I. 12245
    • 8-(2'-Methoxyphenylazo)-7-hydroxy-2-naphthyltrimethylammonium chloride
    • 2-Naphthalenaminium, 7-hydroxy-8-(2-(2-methoxyphenyl)diazenyl)-N,N,N-trimethyl-, chloride (1:1)
    • (7-Hydroxy-8-((2-methoxyphenyl)azo)-2-naphthyl)trimethylammonium chloride
    • [7-hydroxy-8-[(2-methoxyphenyl)azo]-2-naphthyl]trimethylammonium chloride
    • 2-Naphthalenaminium, 7-hydroxy-8-[2-(2-methoxyphenyl)diazenyl]-N,N,N-trimethyl-, chloride (1:1)
    • RefChem:116623
    • BASIC RED 76 [INCI]
    • DTXCID101017790
    • 7-Hydroxy-8-((2-methoxyphenyl)azo)-N,N,N-trimethyl-2-naphthalenam-inium chloride
    • 7-Hydroxy-8-((2-methoxyphenyl)diazenyl)-N,N,N-trimethylnaphthalen-2-aminium chloride
    • [7-hydroxy-8-[(2-methoxyphenyl)diazenyl]naphthalen-2-yl]-trimethylazanium;chloride
    • 2-Naphthalenaminium, 7-hydroxy-8-[(2-methoxyphenyl)azo]-N,N,N-trimethyl-, chloride
    • Arianor Madder
    • 2-Naphthalenaminium, 7-hydroxy-8-((2-methoxyphenyl)azo)-N,N,N-trimethyl-, chloride
    • 7-Hydroxy-8-[(2-methoxyphenyl)diazenyl]-N,N,N-trimethylnaphthalen-2-aminium chloride
    • Rojo basico 76
    • Rouge basique 76
    • Rosso base 76
    • Vermelho basico 76
    • SCHEMBL454962
    • SCHEMBL2940779
    • SCHEMBL29350852
    • SCHEMBL30100525
    • SCHEMBL30807888
    • AKOS016010163
    • 68391-30-0 pound HCl pound(c)
    • (E)-7-hydroxy-8-((2-methoxyphenyl)diazenyl)-N,N,N-trimethylnaphthalen-2-aminium chloride
    • NS00062512
    • H60098
    • Q27277331
    • 7-Hydroxy-8-((2-methoxyphenyl)azo)-N,N,N-trimethyl-2-naphthalenam- inium chloride
    • 68391-30-0

  • Applications

    Basic Red 76 (CAS 68391-30-0) is a basic dye used as a colorant across several industries, including textile dyeing of cellulose and protein fibers, printing inks and coatings, plastics and polymer formulations, leather finishing, and paper coloration.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 13.15
    methanol 11.58
    isopropanol 8.03
    water 0.02
    ethyl acetate 55.68
    n-propanol 14.99
    acetone 47.56
    n-butanol 11.3
    acetonitrile 23.75
    DMF 113.14
    toluene 22.29
    isobutanol 9.1
    1,4-dioxane 62.54
    methyl acetate 66.64
    THF 172.68
    2-butanone 62.59
    n-pentanol 10.21
    sec-butanol 11.41
    n-hexane 0.58
    ethylene glycol 6.07
    NMP 105.68
    cyclohexane 1.09
    DMSO 134.08
    n-butyl acetate 25.39
    n-octanol 2.85
    chloroform 424.93
    n-propyl acetate 28.8
    acetic acid 76.25
    dichloromethane 425.37
    cyclohexanone 68.98
    propylene glycol 8.87
    isopropyl acetate 28.52
    DMAc 155.27
    2-ethoxyethanol 44.39
    isopentanol 9.64
    n-heptane 0.63
    ethyl formate 31.27
    1,2-dichloroethane 192.17
    n-hexanol 9.6
    2-methoxyethanol 74.03
    isobutyl acetate 16.01
    tetrachloromethane 14.61
    n-pentyl acetate 13.76
    transcutol 143.43
    n-heptanol 5.02
    ethylbenzene 7.87
    MIBK 20.38
    2-propoxyethanol 48.42
    tert-butanol 10.75
    MTBE 15.7
    2-butoxyethanol 22.85
    propionic acid 37.35
    o-xylene 10.36
    formic acid 30.39
    diethyl ether 24.36
    m-xylene 10.65
    p-xylene 10.01
    chlorobenzene 52.55
    dimethyl carbonate 58.81
    n-octane 0.24
    formamide 69.83
    cyclopentanone 136.65
    2-pentanone 40.48
    anisole 30.81
    cyclopentyl methyl ether 46.89
    gamma-butyrolactone 176.96
    1-methoxy-2-propanol 50.19
    pyridine 96.49
    3-pentanone 41.53
    furfural 153.95
    n-dodecane 0.17
    diethylene glycol 41.28
    diisopropyl ether 4.75
    tert-amyl alcohol 13.73
    acetylacetone 70.64
    n-hexadecane 0.2
    acetophenone 34.67
    methyl propionate 66.62
    isopentyl acetate 23.16
    trichloroethylene 520.66
    n-nonanol 3.49
    cyclohexanol 13.85
    benzyl alcohol 28.47
    2-ethylhexanol 6.9
    isooctanol 4.81
    dipropyl ether 13.01
    1,2-dichlorobenzene 46.06
    ethyl lactate 24.49
    propylene carbonate 66.28
    n-methylformamide 58.27
    2-pentanol 7.84
    n-pentane 0.58
    1-propoxy-2-propanol 30.81
    1-methoxy-2-propyl acetate 54.57
    2-(2-methoxypropoxy) propanol 30.41
    mesitylene 4.42
    ε-caprolactone 67.66
    p-cymene 5.69
    epichlorohydrin 310.63
    1,1,1-trichloroethane 86.62
    2-aminoethanol 12.53
    morpholine-4-carbaldehyde 123.55
    sulfolane 188.42
    2,2,4-trimethylpentane 0.54
    2-methyltetrahydrofuran 71.75
    n-hexyl acetate 13.49
    isooctane 0.29
    2-(2-butoxyethoxy)ethanol 38.08
    sec-butyl acetate 18.34
    tert-butyl acetate 29.25
    decalin 0.79
    glycerin 24.16
    diglyme 101.9
    acrylic acid 52.21
    isopropyl myristate 5.36
    n-butyric acid 37.72
    acetyl acetate 45.95
    di(2-ethylhexyl) phthalate 9.04
    ethyl propionate 30.15
    nitromethane 193.41
    1,2-diethoxyethane 30.4
    benzonitrile 25.49
    trioctyl phosphate 5.27
    1-bromopropane 46.92
    gamma-valerolactone 166.99
    n-decanol 2.58
    triethyl phosphate 16.74
    4-methyl-2-pentanol 5.48
    propionitrile 22.19
    vinylene carbonate 72.19
    1,1,2-trichlorotrifluoroethane 213.2
    DMS 38.92
    cumene 5.01
    2-octanol 2.64
    2-hexanone 23.63
    octyl acetate 7.27
    limonene 7.55
    1,2-dimethoxyethane 72.11
    ethyl orthosilicate 14.71
    tributyl phosphate 7.47
    diacetone alcohol 38.58
    N,N-dimethylaniline 18.45
    acrylonitrile 42.2
    aniline 44.34
    1,3-propanediol 18.34
    bromobenzene 53.2
    dibromomethane 168.18
    1,1,2,2-tetrachloroethane 303.6
    2-methyl-cyclohexyl acetate 20.35
    tetrabutyl urea 9.1
    diisobutyl methanol 4.45
    2-phenylethanol 25.93
    styrene 11.88
    dioctyl adipate 13.29
    dimethyl sulfate 105.93
    ethyl butyrate 24.51
    methyl lactate 43.5
    butyl lactate 16.31
    diethyl carbonate 20.97
    propanediol butyl ether 15.74
    triethyl orthoformate 20.43
    p-tert-butyltoluene 5.31
    methyl 4-tert-butylbenzoate 25.07
    morpholine 87.11
    tert-butylamine 5.19
    n-dodecanol 1.91
    dimethoxymethane 96.46
    ethylene carbonate 50.85
    cyrene 40.1
    2-ethoxyethyl acetate 36.96
    2-ethylhexyl acetate 17.99
    1,2,4-trichlorobenzene 66.25
    4-methylpyridine 71.53
    dibutyl ether 5.44
    2,6-dimethyl-4-heptanol 4.45
    DEF 57.25
    dimethyl isosorbide 65.72
    tetrachloroethylene 144.33
    eugenol 26.01
    triacetin 30.19
    span 80 20.46
    1,4-butanediol 6.66
    1,1-dichloroethane 110.09
    2-methyl-1-pentanol 10.07
    methyl formate 58.83
    2-methyl-1-butanol 10.77
    n-decane 0.31
    butyronitrile 15.79
    3,7-dimethyl-1-octanol 4.63
    1-chlorooctane 2.36
    1-chlorotetradecane 0.88
    n-nonane 0.25
    undecane 0.22
    tert-butylcyclohexane 0.7
    cyclooctane 0.38
    cyclopentanol 19.42
    tetrahydropyran 51.58
    tert-amyl methyl ether 15.52
    2,5,8-trioxanonane 62.44
    1-hexene 3.65
    2-isopropoxyethanol 27.98
    2,2,2-trifluoroethanol 34.79
    methyl butyrate 36.68

    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