4-Hydroxypropylamino-3-Nitrophenol

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  • Identifiers

    CAS number
    92952-81-3

    Molecular formula
    C9H12N2O4

    SMILES
    C1=CC(=C(C=C1O)[N+](=O)[O-])NCCCO

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Odorless 63.24%
    Sweet 31.63%
    Savory 30.83%
    Meaty 24.21%
    Milky 22.22%
    Bitter 21.56%
    Grape 21.17%
    Animal 20.33%
    Fishy 18.7%
    Cooked 18.63%

     

    Flavor
    Bitter 58.79%
    Odorless 58.24%
    Mild 39.04%
    Bland 27.27%
    Sweet-like 24.16%
    Very mild 23.41%
    Yeast 20.75%
    Orange flower 20.6%
    Nitrile 20.05%
    Orange blossom 19.56%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    1.7

    pKa est.
    9.28 (weak base)

    Molecular weight
    212.2 g/mol

    Flash point

    • 206.83 ˚C est.

  • Synonyms

    • 92952-81-3
    • 4-[(3-Hydroxypropyl)amino]-3-nitrophenol
    • 4-((3-Hydroxypropyl)amino)-3-nitrophenol
    • 4-Hydroxypropylamino-3-nitrophenol
    • Colorex RBN
    • Rot BN
    • Plakatrot Z
    • Covariane Rouge W 3127
    • HC Red BN
    • Phenol, 4-[(3-hydroxypropyl)amino]-3-nitro-
    • UNII-X89W3M6X79
    • X89W3M6X79
    • Phenol, 4-((3-hydroxypropyl)amino)-3-nitro-
    • 3-(4-Hydroxy-2-nitroanilino)propanol
    • 3-(4-Idrossi-2-nitroanilino)propanolo
    • DTXSID70239209
    • EC 406-305-9
    • 3-(4-Idrossi-2-nitroanilino)propanolo [Italian]
    • RefChem:99397
    • DTXCID40161700
    • 4-HYDROXYPROPYLAMINO-3-NITROPHENOL [INCI]
    • 406-305-9
    • 618-889-4
    • 3-nitro-N-(2-hydroxypropyl)-4-aminophenol
    • 4-(3-hydroxypropylamino)-3-nitrophenol
    • N-(3-Hydroxypropyl) 4-hydroxy-2-nitroaniline
    • 3-NITRO-4-HYDROXYPROPYLAMINOPHENOL
    • MFCD07368637
    • 4-(3-hydroxypropylamino)-3-nitro-phenol
    • SCHEMBL111519
    • MSK8758
    • VTXBLQLZQLHDIL-UHFFFAOYSA-N
    • 4-hydroxypropylamino-2-nitrophenol
    • AKOS015890008
    • AC-8183
    • CS-W003382
    • DS-1944
    • SB78734
    • SY014530
    • DB-057350
    • NS00008502
    • 952N813
    • Q27293680
    • 4-[(3-Hydroxypropyl)amino]-3-nitrophenol; HC Red BN; Jarocol Red BN; TM Red 2; Velsol Red BN
    • 92952-81-3

  • Applications

    4-Hydroxypropylamino-3-Nitrophenol (CAS 92952-81-3) is used primarily as an intermediate in the synthesis of colorants and materials; it serves as a building block for azo dyes and pigments used in textiles and printing. It also functions as a precursor for polymer and plastic synthesis, enabling functionalized linkers or crosslinking components for coatings, paints, and adhesives. Additionally, it is regarded as an intermediate in the synthesis of pharmaceutical compounds and other specialty chemicals for industrial applications, subject to local regulatory and formulation constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 36.92
    methanol 74.66
    isopropanol 20.79
    water 1.29
    ethyl acetate 29.44
    n-propanol 23.24
    acetone 111.73
    n-butanol 18.51
    acetonitrile 20.68
    DMF 399.17
    toluene 2.79
    isobutanol 14.63
    1,4-dioxane 19.09
    methyl acetate 38.01
    THF 130.76
    2-butanone 57.83
    n-pentanol 15.22
    sec-butanol 16.44
    n-hexane 0.08
    ethylene glycol 47.29
    NMP 251.27
    cyclohexane 0.14
    DMSO 685.08
    n-butyl acetate 16.92
    n-octanol 4.35
    chloroform 1.94
    n-propyl acetate 18.12
    acetic acid 66.13
    dichloromethane 3.51
    cyclohexanone 55.35
    propylene glycol 43.3
    isopropyl acetate 16.55
    DMAc 431.51
    2-ethoxyethanol 73.45
    isopentanol 23.23
    n-heptane 0.17
    ethyl formate 25.34
    1,2-dichloroethane 7.76
    n-hexanol 13.3
    2-methoxyethanol 158.97
    isobutyl acetate 8.63
    tetrachloromethane 0.8
    n-pentyl acetate 7.29
    transcutol 123.14
    n-heptanol 6.14
    ethylbenzene 2.61
    MIBK 23.11
    2-propoxyethanol 52.11
    tert-butanol 46.31
    MTBE 11.09
    2-butoxyethanol 24.64
    propionic acid 34.21
    o-xylene 4.11
    formic acid 96.36
    diethyl ether 4.03
    m-xylene 4.21
    p-xylene 3.6
    chlorobenzene 2.81
    dimethyl carbonate 26.04
    n-octane 0.1
    formamide 168.14
    cyclopentanone 122.25
    2-pentanone 41.45
    anisole 13.48
    cyclopentyl methyl ether 19.84
    gamma-butyrolactone 127.44
    1-methoxy-2-propanol 92.71
    pyridine 19.13
    3-pentanone 20.06
    furfural 84.39
    n-dodecane 0.16
    diethylene glycol 77.67
    diisopropyl ether 1.91
    tert-amyl alcohol 32.6
    acetylacetone 66.05
    n-hexadecane 0.18
    acetophenone 25.1
    methyl propionate 38.14
    isopentyl acetate 16.9
    trichloroethylene 14.52
    n-nonanol 4.52
    cyclohexanol 12.66
    benzyl alcohol 21.89
    2-ethylhexanol 7.76
    isooctanol 5.6
    dipropyl ether 4.45
    1,2-dichlorobenzene 4.09
    ethyl lactate 25.64
    propylene carbonate 47.18
    n-methylformamide 136.32
    2-pentanol 9.67
    n-pentane 0.07
    1-propoxy-2-propanol 32.39
    1-methoxy-2-propyl acetate 32.47
    2-(2-methoxypropoxy) propanol 38.75
    mesitylene 2.86
    ε-caprolactone 46.74
    p-cymene 3.47
    epichlorohydrin 87.4
    1,1,1-trichloroethane 4.35
    2-aminoethanol 55.82
    morpholine-4-carbaldehyde 121.66
    sulfolane 214.24
    2,2,4-trimethylpentane 0.23
    2-methyltetrahydrofuran 39.61
    n-hexyl acetate 10.61
    isooctane 0.18
    2-(2-butoxyethoxy)ethanol 42.83
    sec-butyl acetate 11.04
    tert-butyl acetate 25.19
    decalin 0.3
    glycerin 95.2
    diglyme 76.08
    acrylic acid 39.29
    isopropyl myristate 4.9
    n-butyric acid 35.12
    acetyl acetate 18.01
    di(2-ethylhexyl) phthalate 10.33
    ethyl propionate 17.85
    nitromethane 154.11
    1,2-diethoxyethane 14.0
    benzonitrile 13.13
    trioctyl phosphate 7.17
    1-bromopropane 1.67
    gamma-valerolactone 113.64
    n-decanol 3.76
    triethyl phosphate 11.95
    4-methyl-2-pentanol 8.12
    propionitrile 12.33
    vinylene carbonate 31.58
    1,1,2-trichlorotrifluoroethane 81.99
    DMS 19.03
    cumene 2.59
    2-octanol 3.07
    2-hexanone 21.4
    octyl acetate 7.17
    limonene 4.34
    1,2-dimethoxyethane 74.95
    ethyl orthosilicate 9.62
    tributyl phosphate 8.45
    diacetone alcohol 67.94
    N,N-dimethylaniline 12.5
    acrylonitrile 27.47
    aniline 10.73
    1,3-propanediol 72.27
    bromobenzene 1.94
    dibromomethane 1.83
    1,1,2,2-tetrachloroethane 12.21
    2-methyl-cyclohexyl acetate 14.48
    tetrabutyl urea 14.93
    diisobutyl methanol 5.23
    2-phenylethanol 18.44
    styrene 2.61
    dioctyl adipate 11.99
    dimethyl sulfate 84.11
    ethyl butyrate 14.83
    methyl lactate 51.6
    butyl lactate 15.45
    diethyl carbonate 11.82
    propanediol butyl ether 29.8
    triethyl orthoformate 11.02
    p-tert-butyltoluene 3.18
    methyl 4-tert-butylbenzoate 23.41
    morpholine 41.36
    tert-butylamine 8.74
    n-dodecanol 2.93
    dimethoxymethane 81.43
    ethylene carbonate 24.78
    cyrene 55.98
    2-ethoxyethyl acetate 16.56
    2-ethylhexyl acetate 10.67
    1,2,4-trichlorobenzene 7.01
    4-methylpyridine 21.98
    dibutyl ether 3.17
    2,6-dimethyl-4-heptanol 5.23
    DEF 64.35
    dimethyl isosorbide 60.35
    tetrachloroethylene 6.99
    eugenol 25.77
    triacetin 21.01
    span 80 23.53
    1,4-butanediol 27.71
    1,1-dichloroethane 3.04
    2-methyl-1-pentanol 17.42
    methyl formate 86.35
    2-methyl-1-butanol 19.04
    n-decane 0.19
    butyronitrile 11.67
    3,7-dimethyl-1-octanol 6.31
    1-chlorooctane 1.11
    1-chlorotetradecane 0.67
    n-nonane 0.14
    undecane 0.17
    tert-butylcyclohexane 0.31
    cyclooctane 0.09
    cyclopentanol 23.63
    tetrahydropyran 9.79
    tert-amyl methyl ether 11.31
    2,5,8-trioxanonane 63.1
    1-hexene 0.68
    2-isopropoxyethanol 38.32
    2,2,2-trifluoroethanol 35.63
    methyl butyrate 28.67

    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