English 
搜索
Chemical Identification
Common Name
Dicamba
中文通用名
麦草畏
IUPAC
3,6-dichloro-o-anisic acid
or
3,6-dichloro-2-methoxybenzoic acid
CAS
3,6-dichloro-2-methoxybenzoic acid
CAS No.
1918-00-9
Molecular Formula
C8H6Cl2O3
Molecular Structure
Category
Activity
Herbicide
Premix
Tribenuron-methyl+dicamba
Triasulfuron+dicamba
penoxsulam+sulfentrazone+2,4-D+dicamba
Nicosulfuron+Dicamba+Fluroxypyr
Nicosulfuron+dicamba+diflufenzopyr
Metsulfuron-methyl+2,4-D+dicamba
MCPA-sodium+Dicamba
fenoxaprop+fluroxypyr+dicamba
Dicamba+Nicosulfuron
Dicamba+Glyphosate+Triclopyr
Dicamba+Glyphosate ammonium
Dicamba+Glyphosate
Dicamba+2,4-D
Bensulfuron-methyl+dicamba
Water soluble liquid (potassium, dimethylamine salt, diglycolamine salt, sodium salt, isopropylamine salt); wettable granular (sodium salt). Premix Parters: chloropicrin.
Physical Properties
Molecular weight:221.0. Physical form:Colourless crystals; ( tech. is a buff crystalline solid). Density:1.488 (25 °C); Composition:Tech. grade purity is 85% w/w, remainder being mainly 3,5-dichloro-o-anisic acid. Melting point:114-116 °C; Vapour pressure:1.67 mPa (25 °C, calc.); Henry constant:6.1×10-5 Pa m3 mol-1; Partition coefficient(n-octanol and water):logP = -0.55 ( pH 5.0), -1.88 ( pH 6.8), -1.9 ( pH 8.9) ( OECD 105); pKa:1.97; Solubility:In water 6.1 g/l (25 °C). In ethanol 922, cyclohexanone 916, acetone 810, dichloromethane 260, dioxane 1180, toluene 130, xylene 78 (all in g/l, 25 °C).; Stability:Resistant to oxidation and hydrolysis under normal conditions. Stable in acids and alkalis. Decomposes at c. 200 °C. Soluble in ethanol, acetone, methyl ethyl ketone, and other ketones. Less readily in xylene.
Toxicology
Oral:Acute oral LD50 for rats 1707 mg/kg. Percutaneous:Acute percutaneous LD50 for rabbits >2000 mg/kg. Extremely irritating and corrosive to eyes; moderately irritating to skin (rabbits). Inhalation: LC50 (4 h) for rats >9.6 mg/l. Phytotoxicity:Most legumes are sensitive. ADI:( JMPR) 0.002 mg/kg b.w. [1993].  Banvel* (Rat): Oral LD50 2629 mg/kg. (Rabbit): De
Environmental Profile
Ecotoxicology: 
Algae: LC50 41 to >250 mg/l, depending on species.Bees:Not toxic to bees; LD50 >100 µg/bee.Birds:Acute oral LD50 for mallard ducks 2000 mg/kg. Dietary LC50 (8 d) for mallard ducks and bobwhite quail >10 000 mg/ kg diet.Daphnia: LC50 (48 h) 110 mg/l.Fish: LC50 (96 h) for rainbow trout and bluegill sunfish 135 mg/l. 
Environmental fate: 
Animals:In mammals, following oral administration, dicamba is rapidly eliminated in the urine, partly as a glycine conjugate.Soil:In soil, microbial degradation occurs, the principal metabolite being 3,6-dichlorosalicylic acid. Under conditions amenable to rapid metabolism, DT50 <14 d. Koc 2. Plant:The degradation rate in plants varies greatly with species. In wheat, the major metabolite is 5-hydroxy-2-methoxy-3,6-dichlorobenzoic acid, whilst 3,6-dichlorosalicylic acid is also a metabolite.
WATER SOLUBILITY: Soluble
Transport Information
Signal Word:CAUTION; Hazard Class:III (Slightly hazardous)

Porduct NewsMore

New president of Aprosoja Brazil says it is “better not to use dicamba”

Dicamba

Survey shows dicamba may reduce the effectiveness of junglerice controls

Dicamba

Internal docs show Monsanto, BASF prepared for drift complaints prior to dicamba launch

Dicamba

Office of Indiana State Chemist announces 2020 dicamba restriction

Dicamba

USA: Arkansas plant board approves new rules for dicamba use in 2020

Dicamba

Dicamba market predicted to be worth US$ 457.3 mn by 2021

Dicamba

Environmental groups file second lawsuit against US EPA's dicamba use approval

Dicamba

“Brazil needs dicamba technology” - Pedro Christoffoleti, PhD Professor at the University of São Paulo

Dicamba

Brazil Ministry of Agriculture discusses use of dicamba herbicide

Dicamba

USA - Cotton farmers should beware of increased herbicide resistance

Dicamba 2,4-D

Related CompaniesMore

Jiangsu Sword Agrochemicals Co., Ltd.

Country:  China

Triadimefon Triadimenol Tebuconazole Diniconazole Bitertanol Cyproconazole Propineb Paclobutrazol Metribuzin Bentazone

Jiangsu Aolunda High-tech Industry Co.,Ltd

Country:  China

Tri-allate EPTC Thiobencarb Molinate Prosulfocarb Dicamba Cyhalofop-butyl Diclosulam Spirodiclofen

Rudong Zhongyi Chemical Co., Ltd.

Country:  China

Pyraclostrobin Trifloxystrobin Prothioconazole tebuconazole pyriproxyfen cyproconazole cyazofamid famoxadone

Jadesheen Chemical Co., Ltd.

Country:  China

Picloram Glyphosate 2,4-D Paraquat Lufenuron Chlorpyrifos Chlorothalonil Imidacloprid Cymoxanil Metalaxyl+Cuprous Oxide

Tagros Chemicals India Pvt Ltd

Country:  India

Permethrin Deltamethrin ALPHACYPERMETHRIN Cypermethrin Metamitron Transfluthrin Tefluthrin Dicamba Sulfentrazone Fipronil Propiconazole