benzenesulfonic acid, 2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-((4-sulfophenyl)azo)-1h-pyrazol-1-yl)-, disodium salt

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  • Identifiers

    CAS number
    6359-98-4

    Molecular formula
    C16H10Cl2N4Na2O7S2

    SMILES
    CC1=NN(C(=O)C1N=NC2=CC=C(C=C2)S(=O)(=O)[O-])C3=CC(=C(C=C3Cl)S(=O)(=O)[O-])Cl.[Na+].[Na+]

    Safety labels

  • Odor profile

    Fragrance
    Odorless 86.02%
    Cooked 22.1%
    Savory 20.77%
    Roasted 18.57%
    Bitter 17.63%
    Burnt 15.89%
    Meaty 14.51%
    Popcorn 12.64%
    Milky 11.88%
    Pungent 11.39%

     

    Flavor
    Bitter 89.92%
    Odorless 34.4%
    Bland 21.13%
    Nitrile 19.57%
    Taco 18.51%
    Bread crust 18.26%
    Roasted peanuts 18.05%
    Very strong 17.78%
    Indole 17.47%
    Sweet-like 17.46%

     

    Odor impact est.
    Odorless

  • Properties

    pKa est.
    1.92 (strong acid)

    Molecular weight
    551.3 g/mol

    Flash point

    • 314.28 ˚C est.

  • Synonyms

    • Benzenesulfonic acid, 2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-((4-sulfophenyl)azo)-1H-pyrazol-1-yl)-, disodium salt
    • Benzenesulfonic acid, 2,5-dichloro-4-[4,5-dihydro-3-methyl-5-oxo-4-[(4-sulfophenyl)azo]-1H-pyrazol-1-yl]-, disodium salt
    • Benzenesulfonic acid, 2,5-dichloro-4-4,5-dihydro-3-methyl-5-oxo-4-(4-sulfophenyl)azo-1H-pyrazol-1-yl-, disodium salt
    • RefChem:564089
    • Acid yellow 17
    • 6359-98-4
    • Xylene Fast Yellow 2G
    • C.I. Acid Yellow 17, disodium salt
    • ACIDYELLOW17
    • Yellow 2G
    • Light Fast Yellow 2G
    • Erio Flavine SX
    • Fenalan Yellow G
    • Erio Flavine 3G
    • Kayacyl Yellow GG
    • Lissamine Fast Yellow
    • Acid Leather Yellow 2GL
    • New Lemon EMBL
    • Hexacol Yellow 2G
    • Xylene Yellow 3GS
    • Benzenesulfonic acid,2,5-dichloro-4-[4,5-dihydro-3-methyl-5-oxo-4-[(4-sulfophenyl)azo]-1H-pyrazol-1-yl]-, disodium salt
    • Pyrazolone Yellow 2J
    • Acid Light Yellow 2G
    • Erio Fast Flavine 3G
    • Fast Light Yellow 2G
    • 1437 Yellow
    • Cetil Light Yellow 2G
    • Fast Light Yellow 5GL
    • Fast Light Yellow 6GL
    • Fast Light Yellow G2X
    • Java Light Yellow 2GN
    • Kiton Fast Yellow 2GL
    • Amacid Light Yellow 2G
    • Xylene Light Yellow 2G
    • Xylene Light Yellow 3G
    • Bucacid Light Yellow 2G
    • Calcocid Fast Yellow 2G
    • Hidacid Light Yellow 2G
    • Acidine Fast Yellow 2GD
    • Apocid Light Yellow 2GX
    • DTXSID6041719
    • Pontacyl Light Yellow GX
    • Xylene Light Yellow N2G
    • Lissamine Fast Yellow 2G
    • Lighthouse Fast Yellow 2G
    • Neran Brilliant Yellow 2G
    • Mitsui Acid Fast Yellow G
    • Vondacid Light Yellow 2GL
    • Amacid Fast Light Yellow G
    • Nylomine Acid Yellow P-4G
    • Kayaku Acid Fast Yellow GG
    • Mitsui Acid Fast Yellow GR
    • Fast Light Yellow GGXN-CF
    • Naphthazine Light Yellow 2G
    • KCA Fast Light Yellow 5GL
    • Nankai Fast Light Yellow 2G
    • Unitertracid Light Yellow 2G
    • Belacid Fast Light Yellow 2G
    • disodium;2,5-dichloro-4-[3-methyl-5-oxo-4-[(4-sulfonatophenyl)diazenyl]-4H-pyrazol-1-yl]benzenesulfonate
    • Fast Light Yellow Silk Special
    • C.I. 18965
    • Metamine Fast Light Yellow 2GX
    • Yellow 2G (VAN)
    • UNII-Y428W9WW4D
    • EINECS 228-819-0
    • NSC 324981
    • SCHEMBL226987
    • SCHEMBL3953142
    • CHEMBL3185287
    • MSK2477
    • DTXCID301079136
    • HY-D0411
    • Tox21_302264
    • AKOS015902850
    • AKOS037643324
    • NCGC00255666-01
    • AS-13945
    • C.I.Acid Yellow 17 (C.I.18965)
    • CAS-6359-98-4
    • CS-0010462
    • NS00013488
    • C.I. Acid Yellow 17, disodium salt (VAN)
    • D92793
    • A918057
    • Q424528
    • Benzenesulfonic acid, 2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-((sulfophenyl)azo)-1- H-pyrazol-1-yl)-, disodium salt
    • Disodium 2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-((4-sulfophenyl)azo)- -1H-pyrazol-1-yl)benzenesulfonate
    • Disodium 2,5-dichloro-4-{3-methyl-5-oxo-4-[(4-sulfonatophenyl)diazenyl]-4,5-dihydro-1H-pyrazol-1-yl}benzene-1-sulfonate
    • 6359-98-4

  • Applications

    benzenesulfonic acid, 2,5-dichloro-4-(4,5-dihydro-3-methyl-5-oxo-4-((4-sulfophenyl)azo)-1h-pyrazol-1-yl)-, disodium salt (CAS 6359-98-4) is a water-soluble azo dye used as a colorant in several industrial sectors. Practically, it is applied for textile dyeing and printing, paper coloration, and as a colorant in inks and coatings; it can also function as a pigment additive for plastics and other polymer formulations and serve as an intermediate in the synthesis of additional azo dyes.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 2.8
    methanol 3.99
    isopropanol 1.62
    water 0.01
    ethyl acetate 4.65
    n-propanol 2.65
    acetone 20.19
    n-butanol 1.64
    acetonitrile 7.33
    DMF 124.1
    toluene 0.93
    isobutanol 1.26
    1,4-dioxane 16.41
    methyl acetate 10.79
    THF 37.81
    2-butanone 23.25
    n-pentanol 1.56
    sec-butanol 2.45
    n-hexane 0.02
    ethylene glycol 1.78
    NMP 95.49
    cyclohexane 0.07
    DMSO 23.99
    n-butyl acetate 4.91
    n-octanol 2.21
    chloroform 4.7
    n-propyl acetate 6.47
    acetic acid 7.08
    dichloromethane 6.1
    cyclohexanone 27.84
    propylene glycol 3.51
    isopropyl acetate 2.95
    DMAc 139.08
    2-ethoxyethanol 14.84
    isopentanol 1.06
    n-heptane 0.04
    ethyl formate 5.68
    1,2-dichloroethane 3.19
    n-hexanol 1.07
    2-methoxyethanol 24.65
    isobutyl acetate 2.21
    tetrachloromethane 0.12
    n-pentyl acetate 6.27
    transcutol 28.84
    n-heptanol 1.6
    ethylbenzene 0.38
    MIBK 3.2
    2-propoxyethanol 16.06
    tert-butanol 1.19
    MTBE 1.56
    2-butoxyethanol 11.45
    propionic acid 5.55
    o-xylene 0.57
    formic acid 6.05
    diethyl ether 1.87
    m-xylene 0.37
    p-xylene 0.7
    chlorobenzene 1.1
    dimethyl carbonate 8.03
    n-octane 0.04
    formamide 15.38
    cyclopentanone 48.99
    2-pentanone 9.14
    anisole 3.81
    cyclopentyl methyl ether 4.04
    gamma-butyrolactone 38.77
    1-methoxy-2-propanol 18.45
    pyridine 18.76
    3-pentanone 7.9
    furfural 32.25
    n-dodecane 0.06
    diethylene glycol 9.95
    diisopropyl ether 0.24
    tert-amyl alcohol 1.86
    acetylacetone 16.68
    n-hexadecane 0.07
    acetophenone 7.53
    methyl propionate 8.99
    isopentyl acetate 3.17
    trichloroethylene 11.06
    n-nonanol 2.45
    cyclohexanol 2.04
    benzyl alcohol 4.4
    2-ethylhexanol 0.81
    isooctanol 1.12
    dipropyl ether 1.97
    1,2-dichlorobenzene 1.01
    ethyl lactate 6.67
    propylene carbonate 10.36
    n-methylformamide 28.2
    2-pentanol 0.93
    n-pentane 0.02
    1-propoxy-2-propanol 12.66
    1-methoxy-2-propyl acetate 10.36
    2-(2-methoxypropoxy) propanol 13.99
    mesitylene 0.19
    ε-caprolactone 19.58
    p-cymene 0.41
    epichlorohydrin 25.39
    1,1,1-trichloroethane 0.92
    2-aminoethanol 3.44
    morpholine-4-carbaldehyde 80.97
    sulfolane 45.72
    2,2,4-trimethylpentane 0.01
    2-methyltetrahydrofuran 9.53
    n-hexyl acetate 6.23
    isooctane 0.01
    2-(2-butoxyethoxy)ethanol 16.5
    sec-butyl acetate 2.68
    tert-butyl acetate 2.79
    decalin 0.03
    glycerin 8.17
    diglyme 31.34
    acrylic acid 7.31
    isopropyl myristate 2.26
    n-butyric acid 4.38
    acetyl acetate 3.21
    di(2-ethylhexyl) phthalate 3.19
    ethyl propionate 4.82
    nitromethane 34.41
    1,2-diethoxyethane 8.23
    benzonitrile 5.28
    trioctyl phosphate 2.11
    1-bromopropane 1.02
    gamma-valerolactone 88.61
    n-decanol 1.76
    triethyl phosphate 2.09
    4-methyl-2-pentanol 0.4
    propionitrile 5.43
    vinylene carbonate 10.44
    1,1,2-trichlorotrifluoroethane 25.12
    DMS 6.48
    cumene 0.22
    2-octanol 1.35
    2-hexanone 9.29
    octyl acetate 3.87
    limonene 0.69
    1,2-dimethoxyethane 32.86
    ethyl orthosilicate 1.58
    tributyl phosphate 2.28
    diacetone alcohol 7.92
    N,N-dimethylaniline 2.72
    acrylonitrile 12.48
    aniline 2.84
    1,3-propanediol 4.28
    bromobenzene 0.82
    dibromomethane 2.2
    1,1,2,2-tetrachloroethane 6.87
    2-methyl-cyclohexyl acetate 3.53
    tetrabutyl urea 6.91
    diisobutyl methanol 0.41
    2-phenylethanol 3.88
    styrene 0.63
    dioctyl adipate 4.94
    dimethyl sulfate 13.08
    ethyl butyrate 4.58
    methyl lactate 11.77
    butyl lactate 8.29
    diethyl carbonate 2.79
    propanediol butyl ether 11.74
    triethyl orthoformate 3.82
    p-tert-butyltoluene 0.37
    methyl 4-tert-butylbenzoate 7.87
    morpholine 25.16
    tert-butylamine 0.37
    n-dodecanol 1.18
    dimethoxymethane 31.08
    ethylene carbonate 7.14
    cyrene 19.53
    2-ethoxyethyl acetate 12.15
    2-ethylhexyl acetate 2.52
    1,2,4-trichlorobenzene 2.08
    4-methylpyridine 11.5
    dibutyl ether 2.34
    2,6-dimethyl-4-heptanol 0.41
    DEF 20.07
    dimethyl isosorbide 20.88
    tetrachloroethylene 2.9
    eugenol 10.87
    triacetin 10.01
    span 80 10.49
    1,4-butanediol 2.27
    1,1-dichloroethane 1.85
    2-methyl-1-pentanol 1.13
    methyl formate 20.31
    2-methyl-1-butanol 1.35
    n-decane 0.1
    butyronitrile 3.68
    3,7-dimethyl-1-octanol 1.3
    1-chlorooctane 0.66
    1-chlorotetradecane 0.27
    n-nonane 0.07
    undecane 0.07
    tert-butylcyclohexane 0.02
    cyclooctane 0.02
    cyclopentanol 4.0
    tetrahydropyran 7.04
    tert-amyl methyl ether 1.65
    2,5,8-trioxanonane 23.37
    1-hexene 0.17
    2-isopropoxyethanol 7.9
    2,2,2-trifluoroethanol 3.05
    methyl butyrate 8.26

    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