Tetrasodium 6-amino-4-hydroxy-3-((7-sulphonato-4-((4-sulphonatophenyl)azo)-1-naphthyl)azo)naphthalene-2,7-disulphonate

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  • Identifiers

    CAS number
    2118-39-0

    Molecular formula
    C26H15N5Na4O13S4

    SMILES
    C1=CC(=CC=C1N=NC2=C3C=CC(=CC3=C(C=C2)N=NC4=C(C5=CC(=C(C=C5C=C4S(=O)(=O)[O-])S(=O)(=O)[O-])N)O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]

    Safety labels

  • Odor profile

    Fragrance
    Odorless 84.75%
    Cooked 21.7%
    Savory 19.84%
    Bitter 16.57%
    Burnt 15.6%
    Roasted 15.3%
    Meaty 12.79%
    Pungent 12.53%
    Clean 12.02%
    Grape 11.74%

     

    Flavor
    Bitter 91.01%
    Odorless 33.87%
    Bland 21.16%
    Nitrile 19.43%
    Very strong 17.62%
    Taco 17.57%
    Bread crust 17.49%
    Indole 17.3%
    Roasted peanuts 17.15%
    Sweet-like 17.03%

     

    Odor impact est.
    Odorless

  • Properties

    pKa est.
    0.67 (strong acid)

    Molecular weight
    825.7 g/mol

    Flash point

    • 506.38 ˚C est.

  • Synonyms

    • Black 7984
    • tetrasodium 6-amino-4-hydroxy-3-[[7-sulphonato-4-[(4-sulphonatophenyl)azo]-1-naphthyl]azo]naphthalene-2,7-disulphonate
    • Tetrasodium 6-amino-4-hydroxy-3-((7-sulphonato-4-((4-sulphonatophenyl)azo)-1-naphthyl)azo)naphthalene-2,7-disulphonate
    • RefChem:897508
    • DTXCID001017797
    • 218-326-9
    • DTXSID40879792
    • 2118-39-0
    • 83221-57-2
    • EINECS 280-236-0
    • CI FOOD BLACK 2
    • SCHEMBL2186338
    • SCHEMBL18172411
    • SCHEMBL29366706
    • SCHEMBL29429622
    • 6-Amino-4-hydroxy-3-((7-sulpho-4-((4-sulphophenyl)azo)-1-naphthyl)azo)naphthalene-2,7-disulphonic acid, sodium salt
    • CI FOOD BLACK 2, TETRASODIUM SALT
    • DB-234043
    • Q934300
    • 2,7-NAPHTHALENEDISULFONIC ACID, 6-AMINO-4-HYDROXY-3-((7-SULFO-4-((P-SULFOPHENYL)AZO)-1-NAPHTHYL)AZO)-, TETRASODIUM SALT
    • 6-Amino-4-hydroxy-3-[[7-sulfo-4-[(4-sulfophenyl)azo]-1-naphthyl]azo]naphthalene-2,7-disulfonic acid,sodium salt
    • Tetrasodium 6-amino-4-hydroxy-3-[[7-sulfonato-4-[(4-sulfonatophenyl)azo]-1-naphthyl]azo]naphthalene-2,7-disulfonate
    • 2118-39-0

  • Applications

    For CAS 2118-39-0, the chemical name Tetrasodium 6-amino-4-hydroxy-3-((7-sulphonato-4-((4-sulphonatophenyl)azo)-1-naphthyl)azo)naphthalene-2,7-disulphonate is a water-soluble azo dye used as a dye intermediate and colorant in multiple industries; typical applications include dyeing and printing on natural and synthetic fibers; acting as a colorant in printing inks and coatings for plastics and paper; serving as a dye additive in coating formulations and adhesives; functioning as a precursor in the synthesis of other azo colorants for polymers; and being used in paper and packaging colorant formulations, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 2.46
    methanol 2.7
    isopropanol 1.41
    water 0.01
    ethyl acetate 1.25
    n-propanol 1.93
    acetone 6.25
    n-butanol 0.97
    acetonitrile 1.06
    DMF 31.42
    toluene 0.33
    isobutanol 0.7
    1,4-dioxane 8.72
    methyl acetate 2.92
    THF 18.65
    2-butanone 6.34
    n-pentanol 0.48
    sec-butanol 1.31
    n-hexane 0.01
    ethylene glycol 1.7
    NMP 17.56
    cyclohexane 0.02
    DMSO 17.12
    n-butyl acetate 1.08
    n-octanol 0.77
    chloroform 0.77
    n-propyl acetate 1.08
    acetic acid 4.52
    dichloromethane 0.86
    cyclohexanone 5.11
    propylene glycol 2.8
    isopropyl acetate 0.76
    DMAc 27.51
    2-ethoxyethanol 4.84
    isopentanol 0.42
    n-heptane 0.01
    ethyl formate 1.96
    1,2-dichloroethane 0.62
    n-hexanol 0.33
    2-methoxyethanol 12.87
    isobutyl acetate 0.32
    tetrachloromethane 0.05
    n-pentyl acetate 1.81
    transcutol 11.93
    n-heptanol 0.52
    ethylbenzene 0.07
    MIBK 0.63
    2-propoxyethanol 5.06
    tert-butanol 0.73
    MTBE 0.62
    2-butoxyethanol 4.05
    propionic acid 2.43
    o-xylene 0.13
    formic acid 3.71
    diethyl ether 0.79
    m-xylene 0.1
    p-xylene 0.09
    chlorobenzene 0.21
    dimethyl carbonate 1.82
    n-octane 0.01
    formamide 5.76
    cyclopentanone 12.77
    2-pentanone 2.32
    anisole 0.5
    cyclopentyl methyl ether 1.06
    gamma-butyrolactone 11.07
    1-methoxy-2-propanol 7.58
    pyridine 5.79
    3-pentanone 1.58
    furfural 8.57
    n-dodecane 0.01
    diethylene glycol 4.07
    diisopropyl ether 0.08
    tert-amyl alcohol 0.74
    acetylacetone 4.01
    n-hexadecane 0.02
    acetophenone 0.8
    methyl propionate 2.09
    isopentyl acetate 0.6
    trichloroethylene 1.61
    n-nonanol 0.83
    cyclohexanol 0.62
    benzyl alcohol 0.73
    2-ethylhexanol 0.15
    isooctanol 0.27
    dipropyl ether 0.52
    1,2-dichlorobenzene 0.11
    ethyl lactate 1.0
    propylene carbonate 2.25
    n-methylformamide 8.92
    2-pentanol 0.39
    n-pentane 0.01
    1-propoxy-2-propanol 3.49
    1-methoxy-2-propyl acetate 2.16
    2-(2-methoxypropoxy) propanol 3.59
    mesitylene 0.04
    ε-caprolactone 4.03
    p-cymene 0.06
    epichlorohydrin 7.46
    1,1,1-trichloroethane 0.2
    2-aminoethanol 2.59
    morpholine-4-carbaldehyde 22.79
    sulfolane 13.49
    2,2,4-trimethylpentane 0.0
    2-methyltetrahydrofuran 3.02
    n-hexyl acetate 1.96
    isooctane 0.0
    2-(2-butoxyethoxy)ethanol 6.08
    sec-butyl acetate 0.39
    tert-butyl acetate 0.69
    decalin 0.0
    glycerin 6.23
    diglyme 9.83
    acrylic acid 3.18
    isopropyl myristate 0.6
    n-butyric acid 1.78
    acetyl acetate 0.77
    di(2-ethylhexyl) phthalate 0.61
    ethyl propionate 0.68
    nitromethane 10.87
    1,2-diethoxyethane 2.64
    benzonitrile 0.68
    trioctyl phosphate 0.52
    1-bromopropane 0.25
    gamma-valerolactone 32.19
    n-decanol 0.54
    triethyl phosphate 0.24
    4-methyl-2-pentanol 0.12
    propionitrile 1.01
    vinylene carbonate 2.37
    1,1,2-trichlorotrifluoroethane 7.59
    DMS 1.42
    cumene 0.03
    2-octanol 0.4
    2-hexanone 1.47
    octyl acetate 1.1
    limonene 0.1
    1,2-dimethoxyethane 8.26
    ethyl orthosilicate 0.21
    tributyl phosphate 0.51
    diacetone alcohol 2.03
    N,N-dimethylaniline 0.26
    acrylonitrile 2.14
    aniline 0.78
    1,3-propanediol 3.92
    bromobenzene 0.12
    dibromomethane 0.35
    1,1,2,2-tetrachloroethane 1.23
    2-methyl-cyclohexyl acetate 0.42
    tetrabutyl urea 1.53
    diisobutyl methanol 0.09
    2-phenylethanol 0.6
    styrene 0.1
    dioctyl adipate 1.07
    dimethyl sulfate 2.61
    ethyl butyrate 0.72
    methyl lactate 2.94
    butyl lactate 2.26
    diethyl carbonate 0.37
    propanediol butyl ether 5.14
    triethyl orthoformate 0.66
    p-tert-butyltoluene 0.06
    methyl 4-tert-butylbenzoate 1.28
    morpholine 11.05
    tert-butylamine 0.18
    n-dodecanol 0.34
    dimethoxymethane 8.58
    ethylene carbonate 1.62
    cyrene 2.9
    2-ethoxyethyl acetate 4.32
    2-ethylhexyl acetate 0.42
    1,2,4-trichlorobenzene 0.25
    4-methylpyridine 2.34
    dibutyl ether 0.7
    2,6-dimethyl-4-heptanol 0.09
    DEF 3.28
    dimethyl isosorbide 3.97
    tetrachloroethylene 0.63
    eugenol 1.78
    triacetin 2.28
    span 80 3.18
    1,4-butanediol 0.99
    1,1-dichloroethane 0.43
    2-methyl-1-pentanol 0.22
    methyl formate 6.64
    2-methyl-1-butanol 0.49
    n-decane 0.03
    butyronitrile 0.77
    3,7-dimethyl-1-octanol 0.3
    1-chlorooctane 0.16
    1-chlorotetradecane 0.06
    n-nonane 0.02
    undecane 0.02
    tert-butylcyclohexane 0.0
    cyclooctane 0.01
    cyclopentanol 1.54
    tetrahydropyran 2.98
    tert-amyl methyl ether 0.45
    2,5,8-trioxanonane 6.79
    1-hexene 0.05
    2-isopropoxyethanol 1.94
    2,2,2-trifluoroethanol 1.52
    methyl butyrate 1.16

    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