HC Yellow No. 2

Overview IFRA Request a quote

  • Identifiers

    CAS number
    4926-55-0

    Molecular formula
    C8H10N2O3

    SMILES
    C1=CC=C(C(=C1)NCCO)[N+](=O)[O-]

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 47.0%
    Sweet 44.82%
    Grape 29.26%
    Bitter 23.68%
    Savory 23.21%
    Fruity 20.73%
    Animal 19.31%
    Milky 18.89%
    Vanilla 18.35%
    Citrus 18.29%

     

    Flavor
    Odorless 57.54%
    Bitter 42.92%
    Mild 39.56%
    Very mild 22.69%
    Sweet-like 22.42%
    Bland 22.4%
    Fruity 21.89%
    Faint 21.7%
    Yeast 21.22%
    Orange flower 21.1%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    1.5

    pKa est.
    8.43 (weak base)

    Molecular weight
    182.18 g/mol

    Flash point

    • 181.76 ˚C est.

  • Synonyms

    • 4926-55-0
    • 2-((2-Nitrophenyl)amino)ethanol
    • HC Yellow no. 2
    • 2-[(2-nitrophenyl)amino]ethanol
    • Ethanol, 2-[(2-nitrophenyl)amino]-
    • Jarocol Yellow 2
    • Colorex HCY2
    • UNII-9FVT2KMV9O
    • 9FVT2KMV9O
    • Covariane Jaune W 1122
    • NSC 68401
    • Ethanol, 2-((2-nitrophenyl)amino)-
    • EINECS 225-555-8
    • HC YELLOW 2
    • NSC 33878
    • NSC-33878
    • NSC-68401
    • DTXSID0063650
    • NSC33878
    • NSC68401
    • O-NITRO-N-(2-HYDROXYETHYL)ANILINE
    • N-(2'-HYDROXYETHYL)-2-NITROANILINE
    • RefChem:145382
    • DTXCID9040683
    • HC YELLOW NO. 2 [INCI]
    • LFOUYKNCQNVIGI-UHFFFAOYSA-N
    • 2-(2-Nitroanilino)ethanol
    • 2-Nitro-N-Hydroxyethyl Aniline
    • 2-Nitro-N-(2-hydroxyethyl)aniline
    • Ethanol, 2-(o-nitroanilino)-
    • 2-Nitro-N-(hydroxyethyl)aniline
    • N-(2-Hydroxyethyl)-2-nitroaniline
    • N-(2-Hydroxyethyl)-o-nitroaniline
    • MFCD00239475
    • 2-[(2-nitrophenyl)amino]ethan-1-ol
    • 2-((2-Nitrophenyl)amino)ethan-1-ol
    • N-Hydroxyethyl-2-nitroaniline
    • Velsol Yellow 2
    • HC amarillo 2
    • HC Giallo 2
    • HC Jaune 2
    • 2-hydroxyethylaminonitrobenzene
    • SCHEMBL110446
    • N-(2-Nitrophenyl)ethanolamine
    • 2-(2-Nitroanilino)ethanol #
    • 2-hydroxyethylamino-nitrobenzene
    • SCHEMBL8640471
    • SCHEMBL9793522
    • 2-(2-Nitroanilino)ethan-1-ol
    • SCHEMBL29390623
    • MSK161164
    • SBB064095
    • AKOS000351129
    • AC-1778
    • AS-12619
    • SY106169
    • DB-051617
    • CS-0117018
    • N1000
    • NS00013732
    • EN300-08711
    • E76083
    • 926N550
    • Q27272504
    • Z31212148
    • 4926-55-0

  • Applications

    HC Yellow No. 2, CAS 4926-55-0, is a synthetic dye used primarily as a colorant in coatings and printing inks, and is commonly evaluated as a color additive for plastics and polymers in manufacturing. It may also find use as a colorant in adhesive formulations and other consumer household product formulations, and is sometimes employed as an intermediate in dye synthesis for polymer applications, depending on formulation and compatibility, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 54.17
    methanol 105.51
    isopropanol 27.2
    water 2.06
    ethyl acetate 70.02
    n-propanol 34.27
    acetone 232.56
    n-butanol 27.76
    acetonitrile 82.25
    DMF 621.15
    toluene 15.79
    isobutanol 21.09
    1,4-dioxane 86.28
    methyl acetate 96.24
    THF 144.97
    2-butanone 123.72
    n-pentanol 23.7
    sec-butanol 23.63
    n-hexane 0.63
    ethylene glycol 74.41
    NMP 536.36
    cyclohexane 1.49
    DMSO 1172.19
    n-butyl acetate 41.14
    n-octanol 14.13
    chloroform 43.1
    n-propyl acetate 36.74
    acetic acid 109.3
    dichloromethane 99.36
    cyclohexanone 165.68
    propylene glycol 44.45
    isopropyl acetate 30.6
    DMAc 452.5
    2-ethoxyethanol 75.85
    isopentanol 26.73
    n-heptane 0.99
    ethyl formate 65.25
    1,2-dichloroethane 117.83
    n-hexanol 25.47
    2-methoxyethanol 160.53
    isobutyl acetate 16.15
    tetrachloromethane 6.21
    n-pentyl acetate 22.43
    transcutol 219.8
    n-heptanol 13.48
    ethylbenzene 10.61
    MIBK 37.05
    2-propoxyethanol 62.45
    tert-butanol 41.4
    MTBE 23.03
    2-butoxyethanol 37.55
    propionic acid 66.71
    o-xylene 19.49
    formic acid 113.67
    diethyl ether 19.82
    m-xylene 15.19
    p-xylene 13.16
    chlorobenzene 34.92
    dimethyl carbonate 58.55
    n-octane 0.55
    formamide 233.43
    cyclopentanone 229.11
    2-pentanone 78.36
    anisole 32.77
    cyclopentyl methyl ether 41.46
    gamma-butyrolactone 275.18
    1-methoxy-2-propanol 87.69
    pyridine 93.96
    3-pentanone 63.86
    furfural 225.49
    n-dodecane 0.7
    diethylene glycol 91.83
    diisopropyl ether 5.82
    tert-amyl alcohol 34.98
    acetylacetone 125.33
    n-hexadecane 0.81
    acetophenone 55.72
    methyl propionate 84.44
    isopentyl acetate 33.75
    trichloroethylene 183.47
    n-nonanol 12.75
    cyclohexanol 33.13
    benzyl alcohol 41.5
    2-ethylhexanol 17.11
    isooctanol 11.55
    dipropyl ether 12.22
    1,2-dichlorobenzene 39.12
    ethyl lactate 38.34
    propylene carbonate 119.08
    n-methylformamide 237.3
    2-pentanol 16.32
    n-pentane 0.65
    1-propoxy-2-propanol 43.28
    1-methoxy-2-propyl acetate 54.97
    2-(2-methoxypropoxy) propanol 50.73
    mesitylene 10.0
    ε-caprolactone 116.63
    p-cymene 10.42
    epichlorohydrin 225.56
    1,1,1-trichloroethane 40.99
    2-aminoethanol 62.86
    morpholine-4-carbaldehyde 239.03
    sulfolane 500.05
    2,2,4-trimethylpentane 1.15
    2-methyltetrahydrofuran 73.29
    n-hexyl acetate 32.73
    isooctane 0.8
    2-(2-butoxyethoxy)ethanol 61.34
    sec-butyl acetate 19.3
    tert-butyl acetate 37.15
    decalin 1.64
    glycerin 105.96
    diglyme 121.92
    acrylic acid 87.79
    isopropyl myristate 12.07
    n-butyric acid 58.71
    acetyl acetate 52.39
    di(2-ethylhexyl) phthalate 20.68
    ethyl propionate 35.8
    nitromethane 358.22
    1,2-diethoxyethane 36.01
    benzonitrile 52.26
    trioctyl phosphate 14.86
    1-bromopropane 22.84
    gamma-valerolactone 239.0
    n-decanol 10.25
    triethyl phosphate 23.78
    4-methyl-2-pentanol 11.92
    propionitrile 44.13
    vinylene carbonate 100.41
    1,1,2-trichlorotrifluoroethane 163.82
    DMS 52.66
    cumene 8.83
    2-octanol 8.43
    2-hexanone 40.34
    octyl acetate 17.98
    limonene 15.24
    1,2-dimethoxyethane 108.12
    ethyl orthosilicate 18.4
    tributyl phosphate 18.36
    diacetone alcohol 71.08
    N,N-dimethylaniline 28.71
    acrylonitrile 95.54
    aniline 39.28
    1,3-propanediol 65.92
    bromobenzene 26.92
    dibromomethane 45.71
    1,1,2,2-tetrachloroethane 121.03
    2-methyl-cyclohexyl acetate 27.9
    tetrabutyl urea 29.84
    diisobutyl methanol 10.8
    2-phenylethanol 36.09
    styrene 13.13
    dioctyl adipate 24.55
    dimethyl sulfate 178.95
    ethyl butyrate 31.01
    methyl lactate 80.3
    butyl lactate 30.99
    diethyl carbonate 25.3
    propanediol butyl ether 48.26
    triethyl orthoformate 21.78
    p-tert-butyltoluene 9.5
    methyl 4-tert-butylbenzoate 44.28
    morpholine 102.51
    tert-butylamine 16.43
    n-dodecanol 7.93
    dimethoxymethane 130.06
    ethylene carbonate 73.53
    cyrene 75.73
    2-ethoxyethyl acetate 43.44
    2-ethylhexyl acetate 24.59
    1,2,4-trichlorobenzene 52.45
    4-methylpyridine 85.86
    dibutyl ether 11.73
    2,6-dimethyl-4-heptanol 10.8
    DEF 132.24
    dimethyl isosorbide 80.71
    tetrachloroethylene 69.7
    eugenol 43.99
    triacetin 47.5
    span 80 36.23
    1,4-butanediol 34.64
    1,1-dichloroethane 50.49
    2-methyl-1-pentanol 23.44
    methyl formate 179.24
    2-methyl-1-butanol 23.98
    n-decane 1.0
    butyronitrile 38.1
    3,7-dimethyl-1-octanol 15.56
    1-chlorooctane 6.48
    1-chlorotetradecane 2.94
    n-nonane 0.82
    undecane 0.83
    tert-butylcyclohexane 1.38
    cyclooctane 0.63
    cyclopentanol 43.73
    tetrahydropyran 47.54
    tert-amyl methyl ether 23.7
    2,5,8-trioxanonane 83.2
    1-hexene 4.0
    2-isopropoxyethanol 42.85
    2,2,2-trifluoroethanol 68.39
    methyl butyrate 56.32

    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