HC Yellow No. 7

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  • Identifiers

    CAS number
    104226-21-3

    Molecular formula
    C17H22N4O2

    SMILES
    CC1=C(C=CC(=C1)N(CCO)CCO)N=NC2=CC=C(C=C2)N

    Safety labels

    Acute Toxic
    Acute Toxic

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Odorless 33.47%
    Meaty 31.02%
    Sweet 30.89%
    Grape 29.25%
    Savory 26.81%
    Animal 26.14%
    Fishy 25.5%
    Cooked 23.3%
    Cheesy 20.98%
    Burnt 20.76%

     

    Flavor
    Bitter 56.36%
    Odorless 39.73%
    Mild 34.36%
    Fruity 23.07%
    Roasted 22.78%
    Sweet-like 21.6%
    Orange flower 21.17%
    Nitrile 20.4%
    Orange blossom 20.31%
    Bland 20.24%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    2.1

    pKa est.
    5.75 (weak acid)

    Molecular weight
    314.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    1619°C

    Flash point

    • 275.92 ˚C est.

  • Synonyms

    • 104226-21-3
    • HC YELLOW NO. 7
    • HC Yellow 7
    • CCRIS 3445
    • 6L0860JBFE
    • COLOREX HCY7
    • 4'-Amino-6-methyl-4-N,N-di(beta-hydroxyethylamino)azobenzene
    • Ethanol, 2,2'-[[4-[(4-aminophenyl)azo]-3-methylphenyl]imino]bis-
    • DTXSID10879805
    • 3-METHYL-4-(4'-ANILILNOAZO)-N,N-BIS(2-HYDROXYETHYL)ANILINE
    • ETHANOL, 2,2'-((4-((4-AMINOPHENYL)AZO)-3-METHYLPHENYL)IMINO)BIS-
    • ETHANOL, 2,2'-((4-(2-(4-AMINOPHENYL)DIAZENYL)-3-METHYLPHENYL)IMINO)BIS-
    • RefChem:783441
    • DTXCID20910814
    • HC YELLOW NO. 7 [INCI]
    • Ethanol,2,2'-[[4-[2-(4-aminophenyl)diazenyl]-3-methylphenyl]imino]bis-
    • 2-[4-[(4-aminophenyl)diazenyl]-N-(2-hydroxyethyl)-3-methylanilino]ethanol
    • 2-[[4-(4-aminophenyl)diazenyl-3-methylphenyl]-(2-hydroxyethyl)amino]ethanol
    • UNII-6L0860JBFE
    • SCHEMBL107987
    • SCHEMBL107988
    • SCHEMBL29596363
    • DTXSID20869419
    • YSVKKVUAUKQDBY-UHFFFAOYSA-N
    • AKOS015915328
    • AKOS028108645
    • NS00013735
    • H42771
    • 226A213
    • Q27265067
    • 2,2'-({4-[(4-Aminophenyl)diazenyl]-3-methylphenyl}azanediyl)di(ethan-1-ol)
    • 2,2'-({4-[(E)-(4-Aminophenyl)diazenyl]-3-methylphenyl}azanediyl)di(ethan-1-ol)
    • 2,2 inverted exclamation marka-[[4-[2-(4-Aminophenyl)diazenyl]-3-methylphenyl]imino]bis[ethanol]
    • 104226-21-3

  • Applications

    HC Yellow No. 7 (CAS 104226-21-3) is an organic colorant used as a pigment in a range of industrial applications; typical use areas include colorant for coatings and inks, colorant for polymers and plastics, coloration in textiles, as an additive in adhesives, and it may be evaluated for cosmetics and personal care products depending on local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 20.83
    methanol 40.85
    isopropanol 7.79
    water 0.73
    ethyl acetate 14.9
    n-propanol 15.02
    acetone 41.6
    n-butanol 9.79
    acetonitrile 12.69
    DMF 96.26
    toluene 5.49
    isobutanol 6.98
    1,4-dioxane 27.84
    methyl acetate 16.85
    THF 121.53
    2-butanone 23.85
    n-pentanol 9.34
    sec-butanol 6.76
    n-hexane 0.16
    ethylene glycol 14.78
    NMP 57.56
    cyclohexane 0.34
    DMSO 679.93
    n-butyl acetate 5.56
    n-octanol 2.25
    chloroform 29.33
    n-propyl acetate 8.16
    acetic acid 106.74
    dichloromethane 36.22
    cyclohexanone 39.28
    propylene glycol 21.83
    isopropyl acetate 5.72
    DMAc 151.12
    2-ethoxyethanol 58.75
    isopentanol 6.74
    n-heptane 0.3
    ethyl formate 22.89
    1,2-dichloroethane 25.75
    n-hexanol 6.05
    2-methoxyethanol 102.36
    isobutyl acetate 4.24
    tetrachloromethane 3.07
    n-pentyl acetate 4.19
    transcutol 84.33
    n-heptanol 4.13
    ethylbenzene 1.77
    MIBK 6.24
    2-propoxyethanol 34.77
    tert-butanol 8.1
    MTBE 2.83
    2-butoxyethanol 18.67
    propionic acid 25.43
    o-xylene 2.96
    formic acid 89.89
    diethyl ether 3.86
    m-xylene 2.84
    p-xylene 2.61
    chlorobenzene 8.32
    dimethyl carbonate 18.13
    n-octane 0.16
    formamide 136.04
    cyclopentanone 82.02
    2-pentanone 14.25
    anisole 7.91
    cyclopentyl methyl ether 15.18
    gamma-butyrolactone 89.49
    1-methoxy-2-propanol 48.44
    pyridine 36.68
    3-pentanone 11.78
    furfural 80.26
    n-dodecane 0.12
    diethylene glycol 46.14
    diisopropyl ether 0.84
    tert-amyl alcohol 6.18
    acetylacetone 27.65
    n-hexadecane 0.13
    acetophenone 13.31
    methyl propionate 20.05
    isopentyl acetate 5.68
    trichloroethylene 60.78
    n-nonanol 2.74
    cyclohexanol 8.82
    benzyl alcohol 16.06
    2-ethylhexanol 3.31
    isooctanol 3.25
    dipropyl ether 3.81
    1,2-dichlorobenzene 8.07
    ethyl lactate 13.77
    propylene carbonate 31.88
    n-methylformamide 61.76
    2-pentanol 3.67
    n-pentane 0.15
    1-propoxy-2-propanol 17.5
    1-methoxy-2-propyl acetate 14.97
    2-(2-methoxypropoxy) propanol 18.2
    mesitylene 1.43
    ε-caprolactone 30.49
    p-cymene 1.78
    epichlorohydrin 103.4
    1,1,1-trichloroethane 10.59
    2-aminoethanol 27.7
    morpholine-4-carbaldehyde 69.98
    sulfolane 137.71
    2,2,4-trimethylpentane 0.14
    2-methyltetrahydrofuran 23.32
    n-hexyl acetate 4.75
    isooctane 0.08
    2-(2-butoxyethoxy)ethanol 25.97
    sec-butyl acetate 3.98
    tert-butyl acetate 6.17
    decalin 0.22
    glycerin 52.39
    diglyme 53.25
    acrylic acid 35.35
    isopropyl myristate 2.12
    n-butyric acid 30.39
    acetyl acetate 13.37
    di(2-ethylhexyl) phthalate 5.26
    ethyl propionate 7.28
    nitromethane 168.53
    1,2-diethoxyethane 10.07
    benzonitrile 10.97
    trioctyl phosphate 3.34
    1-bromopropane 5.05
    gamma-valerolactone 97.19
    n-decanol 2.09
    triethyl phosphate 6.67
    4-methyl-2-pentanol 2.45
    propionitrile 8.81
    vinylene carbonate 34.02
    1,1,2-trichlorotrifluoroethane 109.77
    DMS 9.65
    cumene 1.37
    2-octanol 1.77
    2-hexanone 8.27
    octyl acetate 3.22
    limonene 2.14
    1,2-dimethoxyethane 52.53
    ethyl orthosilicate 5.93
    tributyl phosphate 3.97
    diacetone alcohol 17.22
    N,N-dimethylaniline 5.95
    acrylonitrile 18.15
    aniline 17.46
    1,3-propanediol 35.56
    bromobenzene 6.18
    dibromomethane 17.0
    1,1,2,2-tetrachloroethane 40.35
    2-methyl-cyclohexyl acetate 7.14
    tetrabutyl urea 5.72
    diisobutyl methanol 1.79
    2-phenylethanol 11.16
    styrene 2.47
    dioctyl adipate 5.65
    dimethyl sulfate 44.32
    ethyl butyrate 6.55
    methyl lactate 28.57
    butyl lactate 8.96
    diethyl carbonate 6.43
    propanediol butyl ether 14.44
    triethyl orthoformate 7.13
    p-tert-butyltoluene 1.63
    methyl 4-tert-butylbenzoate 12.4
    morpholine 47.91
    tert-butylamine 2.24
    n-dodecanol 1.55
    dimethoxymethane 54.18
    ethylene carbonate 25.9
    cyrene 30.12
    2-ethoxyethyl acetate 11.13
    2-ethylhexyl acetate 4.06
    1,2,4-trichlorobenzene 12.39
    4-methylpyridine 22.79
    dibutyl ether 2.17
    2,6-dimethyl-4-heptanol 1.79
    DEF 25.84
    dimethyl isosorbide 31.57
    tetrachloroethylene 26.03
    eugenol 15.34
    triacetin 12.43
    span 80 13.29
    1,4-butanediol 15.57
    1,1-dichloroethane 11.57
    2-methyl-1-pentanol 6.58
    methyl formate 56.0
    2-methyl-1-butanol 6.68
    n-decane 0.2
    butyronitrile 8.22
    3,7-dimethyl-1-octanol 2.58
    1-chlorooctane 0.96
    1-chlorotetradecane 0.43
    n-nonane 0.17
    undecane 0.15
    tert-butylcyclohexane 0.19
    cyclooctane 0.15
    cyclopentanol 14.94
    tetrahydropyran 16.32
    tert-amyl methyl ether 2.98
    2,5,8-trioxanonane 37.74
    1-hexene 0.87
    2-isopropoxyethanol 25.44
    2,2,2-trifluoroethanol 41.51
    methyl butyrate 11.56

    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