• Identifiers

    CAS number
    120928-09-8

    Molecular formula
    C20H22N2O

    SMILES
    CC(C)(C)C1=CC=C(C=C1)CCOC2=NC=NC3=CC=CC=C32

    Safety labels

    Acute Toxic
    Acute Toxic

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Floral 66.18%
    Green 61.44%
    Earthy 41.34%
    Animal 40.51%
    Fresh 37.08%
    Rose 36.71%
    Leafy 35.25%
    Lily 31.86%
    Leathery 30.13%
    Metallic 29.26%

     

    Flavor
    Bitter 42.45%
    Green 37.95%
    Herbal 36.59%
    Earthy 26.69%
    Musty 26.3%
    Floral 25.15%
    Woody 23.96%
    Pepper 23.43%
    Balsam 22.89%
    Green pepper 21.02%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    5.7

    pKa est.
    5.96 (weak acid)

    Molecular weight
    306.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    499°C

    Melting point expt.

    • 77.5-80 °C

    Flash point

    • 203.87 ˚C est.

    Solubility expt.

    • In acetone, hexane 33-50, acetone, ethyl acetate 400-500, n-chlorobutane, chloroform, toluene, N-methyl-2-pyrrolidone >500, dichloromethane >600, dimethylformamide 300-400, ethylene glycol <5, isopropanol, methanol 50-100 (all in g/L at 23 °C)
    • In water, 0.102 mg/L (pH 5, 7) , 0.135 mg/L (pH 9); both at 20 °C

  • Synonyms

    • Fenazaquin
    • 120928-09-8
    • Magister
    • 4-[2-(4-tert-butylphenyl)ethoxy]quinazoline
    • 4-tert-Butylphenethylquinazolin-4-yl ether
    • DTXSID4040476
    • DK5Q534WEE
    • 4-((4-(1,1-Dimethylethyl)phenyl)ethoxy)quinazoline
    • 4-tert-butylphenethyl quinazolin-4-yl ether
    • Quinazoline, 4-(2-(4-(1,1-dimethylethyl)phenyl)ethoxy)-
    • DTXCID2020476
    • CHEBI:38593
    • DE-436
    • EL-436
    • 4-(2-(4-(1,1-Dimethylethyl)phenyl)ethoxy)quinazoline
    • 4-(2-(4-tert-butylphenyl)ethoxy)quinazoline
    • RefChem:140105
    • 410-580-0
    • 4-(4-(tert-Butyl)phenethoxy)quinazoline
    • Fenazaquin [ISO]
    • MFCD01656049
    • XDE436
    • Fenazaquin 10 microg/mL in Cyclohexane
    • Fenazaquin 10 microg/mL in Acetonitrile
    • Fenazaquin 100 microg/mL in Cyclohexane
    • Magus
    • Fenazachin
    • Fenaza
    • Pride Ultra
    • UNII-DK5Q534WEE
    • HSDB 7948
    • XDE 436
    • GWN 1708
    • EL 436
    • FENAZAQUIN [MI]
    • EC 410-580-0
    • SCHEMBL26216
    • CHEMBL243282
    • orb1705896
    • Quinazoline, 4-((4-(1,1-dimethylethyl)phenyl)ethoxy)-
    • SCHEMBL29429249
    • GLXC-21911
    • MSK25075
    • Tox21_301223
    • AKOS015903772
    • KS-5370
    • NCGC00255594-01
    • DB-041590
    • HY-117397
    • CAS-120928-09-8
    • CS-0065863
    • NS00006654
    • 4-[2-[4-(t-Butyl)phenyl]ethoxy]quinazoline
    • Fenazaquin, PESTANAL(R), analytical standard
    • C18727
    • D94877
    • 928F098
    • Q1404580
    • 4-(2-(4-(TERT-BUTYL)PHENYL)ETHOXY)QUINAZOLINE
    • 120928-09-8
  • Applications

    Fenazaquin (CAS 120928-09-8) is an acaricide used in agriculture to control mites on fruit crops, vegetables, and ornamentals. Applications typically include foliar sprays in field and greenhouse crops to reduce mite populations such as spider mites, and it is commonly included in integrated pest management programs; it is used as a component in rotation or tank-mix programs with other pesticides to help protect yields and crop quality, and its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 66.67
    methanol 59.87
    isopropanol 33.17
    water 0.08
    ethyl acetate 100.73
    n-propanol 71.49
    acetone 88.58
    n-butanol 72.98
    acetonitrile 48.8
    DMF 73.78
    toluene 171.61
    isobutanol 50.55
    1,4-dioxane 177.01
    methyl acetate 87.4
    THF 398.75
    2-butanone 122.31
    n-pentanol 68.5
    sec-butanol 44.76
    n-hexane 6.85
    ethylene glycol 2.86
    NMP 54.08
    cyclohexane 11.95
    DMSO 78.95
    n-butyl acetate 76.45
    n-octanol 16.78
    chloroform 605.52
    n-propyl acetate 81.4
    acetic acid 54.94
    dichloromethane 650.81
    cyclohexanone 171.07
    propylene glycol 6.5
    isopropyl acetate 59.02
    DMAc 131.62
    2-ethoxyethanol 87.63
    isopentanol 59.78
    n-heptane 7.77
    ethyl formate 63.89
    1,2-dichloroethane 391.84
    n-hexanol 59.41
    2-methoxyethanol 92.75
    isobutyl acetate 67.3
    tetrachloromethane 31.77
    n-pentyl acetate 49.74
    transcutol 262.72
    n-heptanol 27.94
    ethylbenzene 49.82
    MIBK 62.9
    2-propoxyethanol 96.49
    tert-butanol 35.63
    MTBE 61.38
    2-butoxyethanol 56.97
    propionic acid 38.92
    o-xylene 52.78
    formic acid 14.18
    diethyl ether 121.57
    m-xylene 69.11
    p-xylene 67.77
    chlorobenzene 151.89
    dimethyl carbonate 33.83
    n-octane 3.38
    formamide 26.5
    cyclopentanone 160.97
    2-pentanone 98.48
    anisole 78.83
    cyclopentyl methyl ether 128.62
    gamma-butyrolactone 148.54
    1-methoxy-2-propanol 58.73
    pyridine 241.61
    3-pentanone 92.45
    furfural 136.35
    n-dodecane 2.45
    diethylene glycol 39.28
    diisopropyl ether 24.14
    tert-amyl alcohol 39.43
    acetylacetone 82.97
    n-hexadecane 2.84
    acetophenone 77.48
    methyl propionate 78.4
    isopentyl acetate 77.19
    trichloroethylene 549.44
    n-nonanol 19.78
    cyclohexanol 54.39
    benzyl alcohol 70.27
    2-ethylhexanol 38.38
    isooctanol 25.41
    dipropyl ether 60.36
    1,2-dichlorobenzene 107.71
    ethyl lactate 26.28
    propylene carbonate 77.04
    n-methylformamide 41.35
    2-pentanol 35.39
    n-pentane 6.14
    1-propoxy-2-propanol 60.65
    1-methoxy-2-propyl acetate 76.9
    2-(2-methoxypropoxy) propanol 51.21
    mesitylene 28.79
    ε-caprolactone 124.67
    p-cymene 26.81
    epichlorohydrin 377.45
    1,1,1-trichloroethane 161.74
    2-aminoethanol 14.24
    morpholine-4-carbaldehyde 101.46
    sulfolane 104.23
    2,2,4-trimethylpentane 4.48
    2-methyltetrahydrofuran 192.45
    n-hexyl acetate 50.05
    isooctane 3.17
    2-(2-butoxyethoxy)ethanol 77.85
    sec-butyl acetate 59.52
    tert-butyl acetate 56.22
    decalin 6.68
    glycerin 10.06
    diglyme 162.21
    acrylic acid 30.91
    isopropyl myristate 23.34
    n-butyric acid 81.09
    acetyl acetate 47.41
    di(2-ethylhexyl) phthalate 27.71
    ethyl propionate 62.93
    nitromethane 83.96
    1,2-diethoxyethane 116.52
    benzonitrile 76.11
    trioctyl phosphate 16.25
    1-bromopropane 194.72
    gamma-valerolactone 203.43
    n-decanol 15.37
    triethyl phosphate 32.31
    4-methyl-2-pentanol 25.33
    propionitrile 69.87
    vinylene carbonate 81.97
    1,1,2-trichlorotrifluoroethane 93.91
    DMS 49.7
    cumene 32.23
    2-octanol 16.11
    2-hexanone 90.12
    octyl acetate 28.28
    limonene 33.08
    1,2-dimethoxyethane 169.85
    ethyl orthosilicate 35.34
    tributyl phosphate 21.77
    diacetone alcohol 52.96
    N,N-dimethylaniline 51.86
    acrylonitrile 69.54
    aniline 107.23
    1,3-propanediol 35.37
    bromobenzene 167.6
    dibromomethane 380.85
    1,1,2,2-tetrachloroethane 370.27
    2-methyl-cyclohexyl acetate 61.54
    tetrabutyl urea 29.05
    diisobutyl methanol 22.35
    2-phenylethanol 71.87
    styrene 61.22
    dioctyl adipate 37.39
    dimethyl sulfate 37.14
    ethyl butyrate 64.36
    methyl lactate 20.62
    butyl lactate 33.92
    diethyl carbonate 43.91
    propanediol butyl ether 28.87
    triethyl orthoformate 50.78
    p-tert-butyltoluene 23.56
    methyl 4-tert-butylbenzoate 51.9
    morpholine 211.1
    tert-butylamine 25.27
    n-dodecanol 12.06
    dimethoxymethane 120.71
    ethylene carbonate 72.45
    cyrene 51.52
    2-ethoxyethyl acetate 81.18
    2-ethylhexyl acetate 64.8
    1,2,4-trichlorobenzene 112.96
    4-methylpyridine 191.46
    dibutyl ether 39.34
    2,6-dimethyl-4-heptanol 22.35
    DEF 82.69
    dimethyl isosorbide 106.67
    tetrachloroethylene 209.86
    eugenol 53.25
    triacetin 51.25
    span 80 39.81
    1,4-butanediol 16.34
    1,1-dichloroethane 245.52
    2-methyl-1-pentanol 67.8
    methyl formate 36.35
    2-methyl-1-butanol 60.23
    n-decane 4.32
    butyronitrile 91.53
    3,7-dimethyl-1-octanol 23.01
    1-chlorooctane 20.48
    1-chlorotetradecane 8.37
    n-nonane 3.78
    undecane 3.11
    tert-butylcyclohexane 6.22
    cyclooctane 3.76
    cyclopentanol 44.97
    tetrahydropyran 235.05
    tert-amyl methyl ether 51.43
    2,5,8-trioxanonane 99.1
    1-hexene 40.16
    2-isopropoxyethanol 65.15
    2,2,2-trifluoroethanol 15.34
    methyl butyrate 83.51

    Scent© AI

1 of 4
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