(C(E))-4-Hydroxy-3-methoxybenzaldehyde oxime

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  • Identifiers

    CAS number
    134283-49-1

    Molecular formula
    C8H9NO3

    SMILES
    COC1=C(C=CC(=C1)/C=N/O)O

    Safety labels

  • Odor profile

    Fragrance
    Vanilla 60.66%
    Sweet 58.11%
    Spicy 45.44%
    Phenolic 42.22%
    Smoky 38.76%
    Creamy 33.96%
    Burnt 29.3%
    Balsamic 28.64%
    Powdery 28.6%
    Meaty 28.06%

     

    Flavor
    Sweet 44.45%
    Bitter 35.87%
    Vanilla 34.8%
    Creamy 32.49%
    Mild 31.66%
    Phenolic 31.1%
    Woody 30.21%
    Spicy 28.22%
    Powdery 27.37%
    Odorless 26.09%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    1.5

    pKa est.
    8.31 (weak base)

    Molecular weight
    167.16 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    328°C

    Flash point

    • 146.71 ˚C est.

  • Synonyms

    • 134283-49-1
    • DTXSID701256780
    • (C(E))-4-Hydroxy-3-methoxybenzaldehyde oxime
    • [C(E)]-4-Hydroxy-3-methoxybenzaldehyde oxime
    • RefChem:1050831
    • DTXCID301687523
    • 4-((1E)-(Hydroxyimino)methyl)-2-methoxyphenol
    • 700-807-4
    • 2874-33-1
    • 4-hydroxy-3-methoxybenzaldehyde oxime
    • Vanillin Oxime
    • 3-methoxy-4-hydroxy benzaldehyde oxime
    • MFCD00019965
    • 4-[(E)-(hydroxyimino)methyl]-2-methoxyphenol
    • 4-[(E)-hydroxyiminomethyl]-2-methoxyphenol
    • Vanillinoxim
    • Benzaldehyde, 4-hydroxy-3-methoxy-, oxime
    • 4-((hydroxyimino)methyl)-2-methoxyphenol
    • NSC 16680
    • (1E)-4-hydroxy-3-methoxy-benzaldehyde oxime
    • AI3-05042
    • Benzaldehyde, 4-hydroxy-3-methoxy-, oxime, [C(E)]-
    • SCHEMBL7990948
    • NSC16680
    • 4-hydroxy-3-methoxybenzaldehydeoxime
    • NSC-16680
    • SBB019876
    • STK353628
    • AKOS000304382
    • NCGC00338384-01
    • AS-63443
    • NS00003767
    • ST45145803
    • E85399
    • AB01330980-02
    • 2874-33-1

  • Applications

    (C(E))-4-Hydroxy-3-Methoxybenzaldehyde oxime (CAS 134283-49-1) is a vanillin-derived oxime that is typically used as an intermediate in organic synthesis and as an odorant/fragrance-related compound. In perfumery and household products, it can serve as a fragrance ingredient or precursor; in cosmetics/personal care it functions as a fragrance precursor; in industrial manufacturing it provides a building block for vanillin-derived specialty chemicals and aroma compounds; in pharmaceutical and medicinal chemistry research it acts as a synthetic intermediate for heterocyclic and aromatic compounds; in polymers and coatings it can serve as a reactive intermediate for functional materials; and in R&D settings it supports exploration and development of new derivatives and materials.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 68.5
    methanol 85.82
    isopropanol 44.49
    water 2.46
    ethyl acetate 30.43
    n-propanol 44.29
    acetone 121.51
    n-butanol 27.79
    acetonitrile 30.44
    DMF 310.17
    toluene 5.17
    isobutanol 22.55
    1,4-dioxane 53.59
    methyl acetate 45.63
    THF 167.8
    2-butanone 64.73
    n-pentanol 21.21
    sec-butanol 34.24
    n-hexane 1.16
    ethylene glycol 60.06
    NMP 267.33
    cyclohexane 1.14
    DMSO 956.09
    n-butyl acetate 27.34
    n-octanol 10.75
    chloroform 25.31
    n-propyl acetate 26.34
    acetic acid 95.93
    dichloromethane 41.32
    cyclohexanone 59.39
    propylene glycol 43.37
    isopropyl acetate 19.48
    DMAc 206.65
    2-ethoxyethanol 96.73
    isopentanol 22.64
    n-heptane 1.57
    ethyl formate 30.97
    1,2-dichloroethane 44.31
    n-hexanol 22.29
    2-methoxyethanol 151.76
    isobutyl acetate 10.34
    tetrachloromethane 9.32
    n-pentyl acetate 14.44
    transcutol 249.96
    n-heptanol 11.46
    ethylbenzene 5.04
    MIBK 26.4
    2-propoxyethanol 71.43
    tert-butanol 62.62
    MTBE 30.64
    2-butoxyethanol 34.68
    propionic acid 51.32
    o-xylene 8.46
    formic acid 123.65
    diethyl ether 25.36
    m-xylene 6.7
    p-xylene 5.35
    chlorobenzene 11.42
    dimethyl carbonate 41.29
    n-octane 0.55
    formamide 245.57
    cyclopentanone 131.08
    2-pentanone 41.12
    anisole 30.5
    cyclopentyl methyl ether 43.86
    gamma-butyrolactone 159.45
    1-methoxy-2-propanol 101.46
    pyridine 38.84
    3-pentanone 30.97
    furfural 133.37
    n-dodecane 0.45
    diethylene glycol 94.65
    diisopropyl ether 7.55
    tert-amyl alcohol 51.03
    acetylacetone 63.16
    n-hexadecane 0.51
    acetophenone 38.06
    methyl propionate 43.13
    isopentyl acetate 23.2
    trichloroethylene 76.79
    n-nonanol 9.94
    cyclohexanol 20.81
    benzyl alcohol 27.94
    2-ethylhexanol 13.23
    isooctanol 9.32
    dipropyl ether 14.38
    1,2-dichlorobenzene 16.61
    ethyl lactate 31.93
    propylene carbonate 60.32
    n-methylformamide 148.7
    2-pentanol 20.3
    n-pentane 1.22
    1-propoxy-2-propanol 47.24
    1-methoxy-2-propyl acetate 46.61
    2-(2-methoxypropoxy) propanol 53.01
    mesitylene 5.66
    ε-caprolactone 53.42
    p-cymene 6.75
    epichlorohydrin 147.7
    1,1,1-trichloroethane 24.54
    2-aminoethanol 66.46
    morpholine-4-carbaldehyde 155.85
    sulfolane 342.5
    2,2,4-trimethylpentane 1.51
    2-methyltetrahydrofuran 73.68
    n-hexyl acetate 21.24
    isooctane 1.01
    2-(2-butoxyethoxy)ethanol 62.55
    sec-butyl acetate 14.27
    tert-butyl acetate 34.34
    decalin 1.22
    glycerin 94.3
    diglyme 122.59
    acrylic acid 69.07
    isopropyl myristate 8.22
    n-butyric acid 35.22
    acetyl acetate 22.47
    di(2-ethylhexyl) phthalate 12.5
    ethyl propionate 24.2
    nitromethane 222.69
    1,2-diethoxyethane 33.53
    benzonitrile 20.13
    trioctyl phosphate 9.44
    1-bromopropane 13.51
    gamma-valerolactone 139.98
    n-decanol 7.24
    triethyl phosphate 19.37
    4-methyl-2-pentanol 12.84
    propionitrile 22.47
    vinylene carbonate 46.69
    1,1,2-trichlorotrifluoroethane 135.77
    DMS 33.59
    cumene 5.12
    2-octanol 7.24
    2-hexanone 28.3
    octyl acetate 11.83
    limonene 10.14
    1,2-dimethoxyethane 107.4
    ethyl orthosilicate 15.89
    tributyl phosphate 12.08
    diacetone alcohol 69.71
    N,N-dimethylaniline 26.25
    acrylonitrile 41.0
    aniline 22.53
    1,3-propanediol 64.19
    bromobenzene 8.46
    dibromomethane 22.59
    1,1,2,2-tetrachloroethane 56.42
    2-methyl-cyclohexyl acetate 22.36
    tetrabutyl urea 18.49
    diisobutyl methanol 8.88
    2-phenylethanol 26.76
    styrene 6.07
    dioctyl adipate 18.01
    dimethyl sulfate 122.34
    ethyl butyrate 22.42
    methyl lactate 55.14
    butyl lactate 23.2
    diethyl carbonate 19.16
    propanediol butyl ether 44.71
    triethyl orthoformate 19.22
    p-tert-butyltoluene 7.11
    methyl 4-tert-butylbenzoate 38.01
    morpholine 84.65
    tert-butylamine 25.19
    n-dodecanol 5.22
    dimethoxymethane 116.23
    ethylene carbonate 32.66
    cyrene 63.49
    2-ethoxyethyl acetate 32.75
    2-ethylhexyl acetate 16.96
    1,2,4-trichlorobenzene 23.64
    4-methylpyridine 30.33
    dibutyl ether 8.89
    2,6-dimethyl-4-heptanol 8.88
    DEF 61.23
    dimethyl isosorbide 84.64
    tetrachloroethylene 44.63
    eugenol 36.76
    triacetin 38.57
    span 80 33.28
    1,4-butanediol 31.37
    1,1-dichloroethane 23.05
    2-methyl-1-pentanol 18.02
    methyl formate 108.46
    2-methyl-1-butanol 22.12
    n-decane 0.77
    butyronitrile 17.23
    3,7-dimethyl-1-octanol 11.95
    1-chlorooctane 4.23
    1-chlorotetradecane 1.66
    n-nonane 0.71
    undecane 0.58
    tert-butylcyclohexane 1.35
    cyclooctane 0.62
    cyclopentanol 37.63
    tetrahydropyran 34.38
    tert-amyl methyl ether 26.9
    2,5,8-trioxanonane 83.85
    1-hexene 4.59
    2-isopropoxyethanol 50.67
    2,2,2-trifluoroethanol 65.37
    methyl butyrate 33.42

    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