Bentazone

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  • Identifiers

    CAS number
    25057-89-0

    Molecular formula
    C10H12N2O3S

    SMILES
    CC(C)N1C(=O)C2=CC=CC=C2NS1(=O)=O

    Safety labels

    Irritant
    Irritant

    Health Hazard
    Health

  • Odor profile

    Fragrance
    Odorless 75.51%
    Bitter 19.36%
    Roasted 18.62%
    Burnt 17.16%
    Cooked 17.13%
    Popcorn 17.0%
    Nutty 16.05%
    Savory 14.93%
    Cooling 14.63%
    Pungent 13.59%

     

    Flavor
    Bitter 85.02%
    Odorless 22.89%
    Nitrile 19.82%
    Cedarleaf 19.56%
    Lovage 18.41%
    Taco 18.37%
    Bread crust 18.29%
    Very strong 18.2%
    Roasted peanuts 18.2%
    Indole 17.88%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    2.8

    pKa est.
    5.81 (weak acid)

    Molecular weight
    240.28 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    436°C

    Melting point expt.

    • 139.7 °C
    • Decomposition temp: 200 °C
    • 137-139 °C

    Flash point

    • 213.08 ˚C est.

    Solubility expt.

    • Solubility: xylene < 1 g/100 g (at 20 °C). /Technical bentazon/
    • In water, 500 mg/L at 20 °C
    • In water 570 mg/L (pH 7, 20 °C)
    • In acetone 1507, ethanol 861, ethyl acetate 650, diethyl ether 616, chloroform 180, benzene 33, cyclohexane 0.2 (all in g/kg, 20 °C)
    • Solubility at 20 °C in xylene <1 g/100g; cyclohexanone approx 18 g/100g
    • Solubility in water: none

  • Synonyms

    • Bentazone
    • bentazon
    • 25057-89-0
    • Basagran
    • Bendioxide
    • Leader
    • Basagran 480
    • Pentazone
    • Laddok
    • Pledge
    • Basagran-plus
    • 1H-2,1,3-Benzothiadiazin-4(3H)-one, 3-(1-methylethyl)-, 2,2-dioxide
    • Basagran M
    • Basagran KV
    • Bentazon [ANSI]
    • Caswell No. 509C
    • Bentazone [BSI:ISO]
    • BAS 351H
    • Bentazone [ISO]
    • BAS 3510H
    • BAS 3512H
    • BAS 3517H
    • BAS 3510
    • BAS 351-07H
    • CCRIS 6977
    • BAS 351-H
    • HSDB 3430
    • R4S7ZGZ9CT
    • EINECS 246-585-8
    • EPA Pesticide Chemical Code 275200
    • BRN 0530220
    • CHEBI:3018
    • 3-isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide
    • DTXSID0023901
    • 1H-2,1,3-Benzothiadiazin-4(3H)-one, 3-isopropyl-, 2,2-dioxide
    • BENTAZON [MI]
    • BENTAZONE [HSDB]
    • 3-Isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one-2,2-dioxide
    • 3-Isopropyl-2,1,3-benzothiadiazinon-(4)-2,2-dioxid
    • 3-(1-METHYLETHYL)-1H-2,1,3-BENZOTHIADIAZIN-4(3H)-ONE 2,2-DIOXIDE
    • 3-Isopropyl-4H-2,1,3-benzothiadiazin-4-one 2,2-dioxide
    • DTXCID503901
    • 3-Isopropyl-1H-benzo-2,1,3-thiadiazin-4-one 2,2-dioxide
    • 1H-2,1,3-Benzothiadiazin-4(3H)-one-2,2-dioxide, 3-isopropyl-
    • 3-Isopropyl-2,1,3-benzothiadiazinon-(4)-2,2-dioxid [German]
    • 3-(1-Methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one-2,2-dioxide
    • Bentazon (ANSI)
    • Bentazone 10 microg/mL in Acetonitrile
    • Bentazone 100 microg/mL in Acetonitrile
    • 3-isopropyl-2,2-dioxo-1H-2$l^{6},1,3-benzothiadiazin-4-one
    • Graminon-plus
    • Adagio
    • 3-(propan-2-yl)-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide
    • 3-isopropyl-1H-benzo[c][1,2,6]thiadiazin-4(3H)-one 2,2-dioxide
    • 3-(propan-2-yl)-3,4-dihydro-1H-2lambda6,1,3-benzothiadiazine-2,2,4-trione
    • CAS-25057-89-0
    • UNII-R4S7ZGZ9CT
    • Basagranplus
    • Graminonplus
    • 3-Isopropyl-2,1,3-benzothiadiazinon-(4)-2,2-dioxid (German)
    • 3-isopropyl-2,2-dioxo-1H-2$l^(6),1,3-benzothiadiazin-4-one
    • Spectrum_001851
    • SpecPlus_000462
    • Spectrum2_001889
    • Spectrum3_000831
    • Spectrum4_000671
    • Spectrum5_001976
    • Oprea1_558180
    • Oprea1_729468
    • SCHEMBL53939
    • BSPBio_002381
    • KBioGR_001101
    • KBioSS_002368
    • SPECTRUM330039
    • DivK1c_006558
    • SPBio_001798
    • CHEMBL1567045
    • KBio1_001502
    • KBio2_002364
    • KBio2_004932
    • KBio2_007500
    • KBio3_001881
    • ZOMSMJKLGFBRBS-UHFFFAOYSA-
    • BAS 35107H
    • BCP27977
    • HY-B2039
    • Tox21_201951
    • Tox21_300742
    • CCG-15052
    • 1H-2,1,3-Benzothiadiazin-4(3H)-one, 3-isopropyl-, 2,2-dioxide (8CI)
    • 3-(1-Methylethyl)-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide (8CI)
    • AKOS015897484
    • FB18172
    • 1H-2,1,3-Benzothiadiazin-4(3H)-one, 3-(1-methylethyl)-, 2,2-dioxide (9CI)
    • 3-(1-Methylethyl)-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide (8CI)(9CI)
    • NCGC00094531-01
    • NCGC00094531-02
    • NCGC00094531-03
    • NCGC00094531-04
    • NCGC00094531-05
    • NCGC00094531-06
    • NCGC00094531-07
    • NCGC00254648-01
    • NCGC00259500-01
    • DB-046610
    • B3825
    • Bentazon, PESTANAL(R), analytical standard
    • CS-0014134
    • NS00000236
    • 3Isopropyl2,1,3benzothiadiazinon(4)2,2dioxid
    • F88281
    • 3Isopropyl1Hbenzo2,1,3thiadiazin4one 2,2dioxide
    • A817619
    • EN300-11686574
    • Q148937
    • SR-01000388483
    • SR-01000388483-1
    • 3-isopropyl-2,1,3-benzothiadiazin-4-one-2,2-dioxide
    • 3Isopropyl1H2,1,3benzothiadiazin4(3H)one2,2dioxide
    • BRD-K33986892-001-02-3
    • Z56755983
    • 1H2,1,3Benzothiadiazin4(3H)one2,2dioxide, 3isopropyl
    • 3-Isopropyl-4-oxo-2,1,3-benzothiadiazine 2,2-dioxide
    • 1H2,1,3Benzothiadiazin4(3H)one, 3isopropyl, 2,2dioxide
    • 1H2,1,3Benzothiadiazin4(3H)one, 3(1methylethyl), 2,2dioxide
    • 2,2-dioxo-3-propan-2-yl-1H-2|E6,1,3-benzothiadiazin-4-one
    • 3(1Methylethyl)(1H)2,1,3benzothiadiazin4(3H)one2,2dioxide
    • 1H2,1,3Benzothiadiazin4(3H)one, 3isopropyl, 2,2dioxide (8CI)

  • Applications

    Bentazone (CAS 25057-89-0) is a selective post-emergence herbicide used in agriculture to control broadleaf (dicotyledonous) weeds in crops where registered, typically applied after weed emergence. It is the active ingredient in commercial herbicide formulations, commonly formulated as an emulsifiable concentrate (EC), and is often used in tank mixes with other herbicides to broaden the spectrum of control. Bentazone is incorporated into crop protection programs as part of integrated weed management, with adherence to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 7.51
    methanol 11.18
    isopropanol 6.03
    water 0.21
    ethyl acetate 12.14
    n-propanol 6.39
    acetone 22.14
    n-butanol 6.75
    acetonitrile 13.33
    DMF 127.46
    toluene 3.64
    isobutanol 4.33
    1,4-dioxane 23.68
    methyl acetate 14.28
    THF 38.08
    2-butanone 18.87
    n-pentanol 5.35
    sec-butanol 5.69
    n-hexane 0.05
    ethylene glycol 3.67
    NMP 126.04
    cyclohexane 0.27
    DMSO 70.27
    n-butyl acetate 10.66
    n-octanol 3.57
    chloroform 16.76
    n-propyl acetate 8.64
    acetic acid 15.03
    dichloromethane 15.8
    cyclohexanone 45.46
    propylene glycol 6.45
    isopropyl acetate 7.42
    DMAc 85.43
    2-ethoxyethanol 14.06
    isopentanol 5.74
    n-heptane 0.11
    ethyl formate 18.5
    1,2-dichloroethane 12.48
    n-hexanol 6.01
    2-methoxyethanol 34.17
    isobutyl acetate 4.88
    tetrachloromethane 1.14
    n-pentyl acetate 8.63
    transcutol 13.53
    n-heptanol 3.78
    ethylbenzene 1.74
    MIBK 8.99
    2-propoxyethanol 21.66
    tert-butanol 5.56
    MTBE 1.92
    2-butoxyethanol 10.78
    propionic acid 12.03
    o-xylene 2.59
    formic acid 10.85
    diethyl ether 2.44
    m-xylene 2.47
    p-xylene 2.79
    chlorobenzene 11.64
    dimethyl carbonate 12.78
    n-octane 0.09
    formamide 24.13
    cyclopentanone 57.63
    2-pentanone 15.23
    anisole 7.28
    cyclopentyl methyl ether 7.73
    gamma-butyrolactone 67.2
    1-methoxy-2-propanol 26.06
    pyridine 34.02
    3-pentanone 10.65
    furfural 76.81
    n-dodecane 0.17
    diethylene glycol 22.01
    diisopropyl ether 0.66
    tert-amyl alcohol 4.8
    acetylacetone 28.61
    n-hexadecane 0.22
    acetophenone 15.62
    methyl propionate 15.13
    isopentyl acetate 8.88
    trichloroethylene 32.2
    n-nonanol 3.76
    cyclohexanol 7.95
    benzyl alcohol 12.94
    2-ethylhexanol 3.88
    isooctanol 3.03
    dipropyl ether 2.01
    1,2-dichlorobenzene 12.03
    ethyl lactate 12.22
    propylene carbonate 36.73
    n-methylformamide 38.69
    2-pentanol 3.58
    n-pentane 0.07
    1-propoxy-2-propanol 13.88
    1-methoxy-2-propyl acetate 16.5
    2-(2-methoxypropoxy) propanol 14.83
    mesitylene 1.59
    ε-caprolactone 36.59
    p-cymene 2.47
    epichlorohydrin 45.01
    1,1,1-trichloroethane 6.77
    2-aminoethanol 7.42
    morpholine-4-carbaldehyde 74.0
    sulfolane 94.6
    2,2,4-trimethylpentane 0.09
    2-methyltetrahydrofuran 14.97
    n-hexyl acetate 9.18
    isooctane 0.07
    2-(2-butoxyethoxy)ethanol 14.12
    sec-butyl acetate 5.11
    tert-butyl acetate 7.39
    decalin 0.21
    glycerin 15.83
    diglyme 21.68
    acrylic acid 15.59
    isopropyl myristate 4.97
    n-butyric acid 17.02
    acetyl acetate 11.58
    di(2-ethylhexyl) phthalate 9.51
    ethyl propionate 8.43
    nitromethane 44.17
    1,2-diethoxyethane 6.2
    benzonitrile 22.83
    trioctyl phosphate 6.77
    1-bromopropane 3.34
    gamma-valerolactone 85.27
    n-decanol 3.14
    triethyl phosphate 7.67
    4-methyl-2-pentanol 2.55
    propionitrile 11.67
    vinylene carbonate 37.02
    1,1,2-trichlorotrifluoroethane 40.39
    DMS 12.93
    cumene 1.38
    2-octanol 2.82
    2-hexanone 10.7
    octyl acetate 7.02
    limonene 3.03
    1,2-dimethoxyethane 24.99
    ethyl orthosilicate 5.78
    tributyl phosphate 7.53
    diacetone alcohol 19.56
    N,N-dimethylaniline 5.67
    acrylonitrile 23.09
    aniline 10.47
    1,3-propanediol 13.71
    bromobenzene 8.47
    dibromomethane 8.15
    1,1,2,2-tetrachloroethane 24.47
    2-methyl-cyclohexyl acetate 10.5
    tetrabutyl urea 12.8
    diisobutyl methanol 2.34
    2-phenylethanol 14.59
    styrene 2.31
    dioctyl adipate 9.16
    dimethyl sulfate 26.11
    ethyl butyrate 8.95
    methyl lactate 21.92
    butyl lactate 10.9
    diethyl carbonate 7.61
    propanediol butyl ether 10.56
    triethyl orthoformate 6.9
    p-tert-butyltoluene 2.09
    methyl 4-tert-butylbenzoate 14.84
    morpholine 28.22
    tert-butylamine 2.12
    n-dodecanol 2.49
    dimethoxymethane 28.05
    ethylene carbonate 27.29
    cyrene 30.16
    2-ethoxyethyl acetate 11.92
    2-ethylhexyl acetate 7.2
    1,2,4-trichlorobenzene 17.44
    4-methylpyridine 27.61
    dibutyl ether 2.3
    2,6-dimethyl-4-heptanol 2.34
    DEF 27.64
    dimethyl isosorbide 30.72
    tetrachloroethylene 11.61
    eugenol 19.45
    triacetin 12.52
    span 80 13.7
    1,4-butanediol 6.16
    1,1-dichloroethane 7.61
    2-methyl-1-pentanol 4.93
    methyl formate 31.57
    2-methyl-1-butanol 5.03
    n-decane 0.22
    butyronitrile 13.86
    3,7-dimethyl-1-octanol 3.74
    1-chlorooctane 1.59
    1-chlorotetradecane 0.88
    n-nonane 0.15
    undecane 0.19
    tert-butylcyclohexane 0.15
    cyclooctane 0.09
    cyclopentanol 11.8
    tetrahydropyran 11.99
    tert-amyl methyl ether 2.3
    2,5,8-trioxanonane 21.23
    1-hexene 0.48
    2-isopropoxyethanol 8.51
    2,2,2-trifluoroethanol 10.78
    methyl butyrate 13.51

    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