Chloridazon

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  • Identifiers

    CAS number
    1698-60-8

    Molecular formula
    C10H8ClN3O

    SMILES
    C1=CC=C(C=C1)N2C(=O)C(=C(C=N2)N)Cl

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Odorless 54.09%
    Burnt 28.71%
    Bitter 27.54%
    Fruity 26.97%
    Grape 22.28%
    Cooked 21.83%
    Roasted 20.31%
    Animal 19.41%
    Musty 17.53%
    Savory 17.27%

     

    Flavor
    Bitter 85.29%
    Odorless 31.16%
    Very strong 21.84%
    Nitrile 21.76%
    Indole 21.24%
    Mild 21.0%
    Bread crust 20.77%
    Moth ball 20.16%
    Scallion 20.13%
    Orange flower 19.94%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    0.8

    pKa est.
    4.72 (weak acid)

    Molecular weight
    221.64 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very slow

    Boiling point est.
    437°C

    Melting point expt.

    • 206 °C
    • MELTING POINT: 185-195 °C /TECHNICAL PRODUCT/
    • Brown, almost odorless. MP: 198-202 °C /technical/

    Flash point

    • 183.79 ˚C est.

    Solubility expt.

    • 25.5 [ug/mL] (The mean of the results at pH 7.4)
    • IN WATER 400 MG/L AT 20 °C; IN METHANOL 34 G/KG AT 20 °C; IN ACETONE 28 G/KG AT 20 °C; IN BENZENE 0.7 G/KG AT 20 °C
    • IN CYCLOHEXANE GREATER THAN 0.01 G/100 G @ 20 °C; IN CHLOROFORM 0.21 G/100 G @ 20 °C; IN ETHER 0.07 G/100 G @ 20 °C
    • In distilled water, 340 mg/L at 20 °C
    • In methanol 15.1, ethyl acetate 3.7, dichloromethane 1.9, toluene 0.1 (all in g/l at 20 °C); Practically insoluble in n-hexane.
    • In water, 400 mg/L at 20 °C

  • Synonyms

    • Chloridazon
    • 1698-60-8
    • PYRAZON
    • 5-Amino-4-chloro-2-phenylpyridazin-3(2H)-one
    • Chloridazone
    • Curbetan
    • 3(2H)-Pyridazinone, 5-amino-4-chloro-2-phenyl-
    • Clorizol
    • Phenosane
    • Pyrazone
    • Pyrazonl
    • Burex
    • Suzon
    • PCA (pesticide)
    • Pyrazon [ANSI]
    • 5-Amino-4-chloro-2-phenyl-3(2H)-pyridazinone
    • Phenazone (herbicide)
    • Caswell No. 714C
    • 5-amino-4-chloro-2-phenylpyridazin-3-one
    • Chloridazon [BSI:ISO]
    • Chloridazon [ISO]
    • Chloridazone [ISO-French]
    • 5-Amino-4-chloro-2-phenyl-3-pyridazinone
    • 5-amino-4-chloro-2-phenyl-2,3-dihydropyridazin-3-one
    • HSDB 1759
    • HS 119-1
    • Tripart gladiator
    • 1-Phenyl-4-amino-5-chloropyridazin-6-one
    • EINECS 216-920-2
    • UNII-26X5RK7X7W
    • BAS 13033
    • 5-Amino-4-chloro-2-phenylpyridazinone
    • EPA Pesticide Chemical Code 069601
    • Alicep (Salt/Mix)
    • BRN 0397241
    • 1-Phenyl-4-amino-5-chlorpyridaz-6-one
    • 1-Phenyl-4-amino-5-chloro-6-pyridazone
    • 1-Phenyl-4-amino-5-chloropyridaz-6-one
    • DTXSID3034872
    • CHEBI:81838
    • 5-Amino-4-chloro-2,3-dihydro-3-oxo-2-phenylpyridazine
    • CHLORIDAZON [MI]
    • CHLORIDAZON [HSDB]
    • 1-Phenyl-4-amino-5-chlorpyridazon-(6) [German]
    • Better flowable (Salt/Mix)
    • 1-Phenyl-4-amino-5-chlorpyridazon-(6)
    • 26X5RK7X7W
    • DTXCID1014872
    • 1-Phenyl-4-amino-5-chloro-6-oxo-(1H)pyridazine
    • 5-25-14-00196 (Beilstein Handbook Reference)
    • Pyrazon (ANSI)
    • Chloridazon 10 microg/mL in Acetonitrile
    • Chloridazon 100 microg/mL in Acetonitrile
    • Pyramin RB
    • Chloridazone (ISO-French)
    • Pyramin(e)
    • Burex [Czech]
    • Pyramin (herbicide)
    • Phenazon (herbicide)
    • chlordiazon
    • PAC herbicide
    • 1-Fenyl-4-amino-5-chlor-6-pyridazinon
    • BAS 1191611
    • Choridazone
    • 5-Amino-4-chloro-2-phenyl-pyridazin-3-one
    • 1-Fenyl-4-amino-5-chlor-6-pyridazinon [Czech]
    • MFCD00055402
    • DAZON
    • PYRAMIN W
    • PAC (PESTICIDE)
    • ChemDiv2_002162
    • Cambridge id 5341852
    • 5-Amino-4-chloro-2-phenyl-2H-pyridazin-3-one
    • Pyrazon, analytical standard
    • Oprea1_055309
    • Oprea1_237809
    • SCHEMBL53824
    • 5-amino-4-chloro-2-phenyl-2-hydropyridazin-3-one
    • MLS001209252
    • 1Fenyl4amino5chlor6pyridazinon
    • 1Phenyl4amino5chlorpyridaz6one
    • 1Phenyl4amino5chloropyridaz6one
    • 5Amino4chloro2phenylpyridazinone
    • CHEMBL1525705
    • 1Phenyl4amino5chlorpyridazon(6)
    • 1Phenyl4amino5chloropyridazin6one
    • 5Amino4chloro2phenyl3pyridazinone
    • BAS 11916H
    • HMS1375C06
    • HMS2848J05
    • ALBB-014251
    • Tox21_300721
    • GEO-02108
    • STK721154
    • 5Amino4chloro2phenyl3(2H)pyridazinone
    • 5Amino4chloro2phenylpyridazin3(2H)one
    • AKOS000520786
    • GS-3474
    • HS 1191
    • USEPA/OPP Pesticide Code: 069601
    • 4-amino-5-chloro-1-phenylpyridaz-6-one
    • NCGC00164293-01
    • NCGC00164293-02
    • NCGC00164293-03
    • NCGC00254627-01
    • 3(2H)Pyridazinone, 5amino4chloro2phenyl
    • HS-119-1
    • SMR000514530
    • CAS-1698-60-8
    • 5Amino4chloro2,3dihydro3oxo2phenylpyridazine
    • C2554
    • CS-0156130
    • NS00008895
    • 5-Amino-4-chloro-2-phenyl-3(2H)-pyridazone
    • 1-PHENYL-4-AMINO-5-CHLOROPYRIDAZONE-6
    • C18570
    • H10524
    • 4-Chloro-5-amino-2-phenyl-3(2H)-pyridazinone
    • AB00081495-01
    • EN300-7461223
    • AE-641/00784061
    • Q908257
    • SR-01000523982
    • SR-01000523982-1
    • BRD-K57998353-001-07-0
    • Z57100083
    • 216-920-2

  • Applications

    Chloridazon (CAS 1698-60-8) is a selective, soil-applied herbicide used in vegetables and root crops, with particular use in potato production, to control annual grasses and broadleaf weeds; it is typically applied pre-emergence or early post-emergence, formulated as emulsifiable concentrates (EC) or granules, and may be used alone or in combination with other herbicides within integrated weed management programs.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 37.64
    methanol 47.51
    isopropanol 23.21
    water 0.11
    ethyl acetate 52.59
    n-propanol 30.58
    acetone 138.26
    n-butanol 26.3
    acetonitrile 48.26
    DMF 364.05
    toluene 13.69
    isobutanol 17.88
    1,4-dioxane 44.95
    methyl acetate 58.23
    THF 217.08
    2-butanone 101.32
    n-pentanol 20.08
    sec-butanol 18.86
    n-hexane 0.11
    ethylene glycol 21.61
    NMP 235.89
    cyclohexane 0.31
    DMSO 354.86
    n-butyl acetate 29.01
    n-octanol 3.86
    chloroform 27.02
    n-propyl acetate 32.76
    acetic acid 101.86
    dichloromethane 43.25
    cyclohexanone 121.22
    propylene glycol 33.24
    isopropyl acetate 22.41
    DMAc 282.75
    2-ethoxyethanol 75.62
    isopentanol 23.0
    n-heptane 0.38
    ethyl formate 63.34
    1,2-dichloroethane 46.54
    n-hexanol 17.22
    2-methoxyethanol 194.96
    isobutyl acetate 14.31
    tetrachloromethane 2.17
    n-pentyl acetate 16.46
    transcutol 184.81
    n-heptanol 8.51
    ethylbenzene 4.48
    MIBK 25.94
    2-propoxyethanol 61.66
    tert-butanol 24.39
    MTBE 10.62
    2-butoxyethanol 34.97
    propionic acid 43.9
    o-xylene 7.35
    formic acid 67.22
    diethyl ether 9.64
    m-xylene 7.79
    p-xylene 7.35
    chlorobenzene 22.83
    dimethyl carbonate 42.25
    n-octane 0.11
    formamide 168.38
    cyclopentanone 197.81
    2-pentanone 66.74
    anisole 23.02
    cyclopentyl methyl ether 33.46
    gamma-butyrolactone 209.94
    1-methoxy-2-propanol 115.05
    pyridine 138.14
    3-pentanone 37.62
    furfural 229.07
    n-dodecane 0.15
    diethylene glycol 75.38
    diisopropyl ether 2.05
    tert-amyl alcohol 19.46
    acetylacetone 98.93
    n-hexadecane 0.18
    acetophenone 42.1
    methyl propionate 59.73
    isopentyl acetate 23.09
    trichloroethylene 129.77
    n-nonanol 4.4
    cyclohexanol 22.36
    benzyl alcohol 43.07
    2-ethylhexanol 9.55
    isooctanol 7.1
    dipropyl ether 7.54
    1,2-dichlorobenzene 18.47
    ethyl lactate 31.08
    propylene carbonate 94.08
    n-methylformamide 159.77
    2-pentanol 12.66
    n-pentane 0.14
    1-propoxy-2-propanol 38.28
    1-methoxy-2-propyl acetate 44.6
    2-(2-methoxypropoxy) propanol 35.4
    mesitylene 3.74
    ε-caprolactone 90.38
    p-cymene 5.18
    epichlorohydrin 234.62
    1,1,1-trichloroethane 18.09
    2-aminoethanol 41.89
    morpholine-4-carbaldehyde 156.25
    sulfolane 248.59
    2,2,4-trimethylpentane 0.24
    2-methyltetrahydrofuran 76.67
    n-hexyl acetate 15.6
    isooctane 0.19
    2-(2-butoxyethoxy)ethanol 53.84
    sec-butyl acetate 15.05
    tert-butyl acetate 21.89
    decalin 0.31
    glycerin 70.59
    diglyme 105.24
    acrylic acid 60.85
    isopropyl myristate 6.35
    n-butyric acid 62.54
    acetyl acetate 35.93
    di(2-ethylhexyl) phthalate 12.53
    ethyl propionate 26.85
    nitromethane 256.96
    1,2-diethoxyethane 26.5
    benzonitrile 47.23
    trioctyl phosphate 8.35
    1-bromopropane 9.56
    gamma-valerolactone 247.97
    n-decanol 3.71
    triethyl phosphate 13.72
    4-methyl-2-pentanol 7.71
    propionitrile 34.32
    vinylene carbonate 82.95
    1,1,2-trichlorotrifluoroethane 159.61
    DMS 24.49
    cumene 3.25
    2-octanol 3.87
    2-hexanone 34.62
    octyl acetate 9.4
    limonene 7.29
    1,2-dimethoxyethane 99.51
    ethyl orthosilicate 11.21
    tributyl phosphate 10.26
    diacetone alcohol 55.09
    N,N-dimethylaniline 15.14
    acrylonitrile 73.3
    aniline 48.22
    1,3-propanediol 64.06
    bromobenzene 16.3
    dibromomethane 18.34
    1,1,2,2-tetrachloroethane 74.06
    2-methyl-cyclohexyl acetate 18.58
    tetrabutyl urea 15.9
    diisobutyl methanol 5.5
    2-phenylethanol 31.76
    styrene 6.67
    dioctyl adipate 14.86
    dimethyl sulfate 79.02
    ethyl butyrate 22.79
    methyl lactate 64.97
    butyl lactate 24.4
    diethyl carbonate 17.82
    propanediol butyl ether 35.71
    triethyl orthoformate 16.0
    p-tert-butyltoluene 4.55
    methyl 4-tert-butylbenzoate 26.55
    morpholine 96.97
    tert-butylamine 8.39
    n-dodecanol 2.9
    dimethoxymethane 129.92
    ethylene carbonate 57.81
    cyrene 57.24
    2-ethoxyethyl acetate 31.4
    2-ethylhexyl acetate 16.12
    1,2,4-trichlorobenzene 30.08
    4-methylpyridine 99.54
    dibutyl ether 4.37
    2,6-dimethyl-4-heptanol 5.5
    DEF 79.67
    dimethyl isosorbide 65.82
    tetrachloroethylene 38.04
    eugenol 33.81
    triacetin 26.33
    span 80 26.34
    1,4-butanediol 20.13
    1,1-dichloroethane 23.05
    2-methyl-1-pentanol 18.38
    methyl formate 135.77
    2-methyl-1-butanol 19.99
    n-decane 0.18
    butyronitrile 34.44
    3,7-dimethyl-1-octanol 6.1
    1-chlorooctane 1.44
    1-chlorotetradecane 0.79
    n-nonane 0.13
    undecane 0.17
    tert-butylcyclohexane 0.29
    cyclooctane 0.1
    cyclopentanol 36.86
    tetrahydropyran 38.04
    tert-amyl methyl ether 10.11
    2,5,8-trioxanonane 67.95
    1-hexene 1.25
    2-isopropoxyethanol 38.82
    2,2,2-trifluoroethanol 41.93
    methyl butyrate 45.45

    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