Bentazone
- CAS No.
- 25057-89-0
- Chemical Name:
- Bentazone
- Synonyms
- BENTAZON;leader;GALAXY;Bendioxide;3-isopropyl-1h-2,1,3-benzothiadiazin-4(3h)-one-2,2-dioxide;laddok;Adagio;Thianon;bas3510;Bazargan
- CBNumber:
- CB7235319
- Molecular Formula:
- C10H12N2O3S
- Molecular Weight:
- 240.28
- MOL File:
- 25057-89-0.mol
- Modify Date:
- 2024/3/14 15:18:27
| Melting point | 137-139°C |
|---|---|
| Boiling point | 395.7±25.0 °C(Predicted) |
| Density | 1.3387 (rough estimate) |
| refractive index | 1.5650 (estimate) |
| Flash point | 2 °C |
| storage temp. | APPROX 4°C |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| pka | pKa (24°): 3.3 |
| form | Solid |
| color | White |
| Water Solubility | 0.5g/L(20 ºC) |
| Merck | 13,1051 |
| BRN | 530220 |
| NIST Chemistry Reference | Bentazone(25057-89-0) |
| EPA Substance Registry System | Bentazon (25057-89-0) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H317-H319-H412 | |||||||||
| Precautionary statements | P261-P273-P280-P301+P312-P302+P352-P305+P351+P338 | |||||||||
| Hazard Codes | Xn,F | |||||||||
| Risk Statements | 22-36-43-52/53-20/21/22-11 | |||||||||
| Safety Statements | 2-24-37-61-36-26-16 | |||||||||
| RIDADR | UN 1648 3/PG 2 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | DK9900000 | |||||||||
| HS Code | 29349990 | |||||||||
| Toxicity | LD50 in male, female rats (mg/kg): 383.2, 433.6 orally (Ugazio) | |||||||||
| NFPA 704 |
|
Bentazone price More Price(3)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 32052 | Bentazon PESTANAL?, analytical standard | 25057-89-0 | 250MG | ₹2760.38 | 2022-06-14 | Buy |
| TCI Chemicals (India) | B3825 | Bentazon | 25057-89-0 | 1G | ₹3200 | 2022-05-26 | Buy |
| TCI Chemicals (India) | B3825 | Bentazon | 25057-89-0 | 5G | ₹7900 | 2022-05-26 | Buy |
Bentazone Chemical Properties,Uses,Production
Description
Bentazon is unique under these herbicides because it is the only compound that bears a sulfonyl group. A puzzle that is not solved yet is that bentazone is an excellent herbicide but has a very low pI50-value.
Chemical Properties
Bentazon is a colorless to white crystalline powder.
Uses
Herbicide.
Definition
ChEBI: A benzothiadiazine that is 1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide substituted by an isopropyl group at position 3.
Agricultural Uses
Selective post-emergent herbicide: A post-emergence herbicide used to control broadleaf weeds in crops such as beans, corn, mint, soybeans, rice, and peanuts. All products formerly marketed in the U.S. contain the sodium salt of bentazon as the active ingredient, referred to as sodium bentazon. Also used in selective post-emergent control of broadlelaf weeds and sedges in alfalfa, asparagus, cereals, clover, digitalis, dry peas, flax, garlic, grasses, green lima beans, mint, onions, potatoes, snap beans for seed, sorghum, soybeans and sugarcane. Not currently registered in the U.S. It is reported to be used in most European countries.
Trade name
ASAGIO®; BAS 351-H®; BASAGRAN®; BENDIOXIDE®; BENTA®; BLAST®; ENTRY®; LADDOK®; LEADER®; PLEDGE®; STORM®
Safety Profile
Moderately toxic by ingestion and skin contact. An experimental teratogen. Other experimental reproductive effects. When heated to decomposition it emits very toxic fumes of SO, and NOx.
Potential Exposure
A potential danger to those involved in the manufacture, formulation or application of this selective postemergent thiadiazine herbicide.
Environmental Fate
Soil. Under aerobic conditions, bentazone was reported to degrade to 6- and 8-hydrox ybentazone compounds. In addition, anthranilic acid and isopropylamide were reported
as soil hydrolysis products (Otto et al., 1978). Persistence in soil is less than 6 weeks
(Hartley and Kidd, 1987). Bentazone is readily adsorbed onto organic carbon and therefore,
is not expected to leach to groundwater (Abernathy and Wax, 1973). The dissipation half life of bentazone in field soil is 5 days (Ross et al., 1989).
Plant. Undergoes hydroxylation of the aromatic ring and subsequent conju-gation in
plants (Otto et al., 1978; Hartley and Kidd, 1987) forming 6- and 8-hydroxybentazone
compounds (Otto et al., 1978). The half-life in and/or on plants is 2–3 days (
Photolytic. Humburg et al. (1989) reported that 30% degradation of bentazone on glass
plates occurred when exposed to UV light (λ = 200–400 nm); however, no photoproduct(s)
were reported. The natural sunlight and simulated sunlight irradiation of
Chiron et al. (1995) investigated the photodegradation of bentazone (20 μg/L) in
distilled water and Ebro River water using an xenon arc irradiation. In distilled water,
bentazone completely disappeared after 16 hours of irradiation. Photodegradation appeared
to follow pseudo-first-order kinetics with a half-life of about 2.5 hours. The presence of
humic substances (4 mg/L) increased the rate of photodegradation and the disappearance
of bentazone was achieved in 8 hours. No significant breakdown photoproducts were
identified.
Metabolic pathway
14C-Bentazon degrades in soils under conventional tillage and no-tillage (3-18 years) with varying histories of bentazon application. The half-life for bentazon degradation ranges from 4.6 to 49.5 days; half-lives for some no-tillage soils with the longest histories of application are lower than those of conventional tillage soils. Half-lives for soils with no bentazon history are 3-11 times higher than the half- lives of those previously exposed to bentazon. N- Methylbentazon is the most consistently observed metabolite. The other metabolites identified in soils result from hydroxylation on the phenyl ring and the cleavage of the benzothiadiazine ring, yielding 6- and 8-hydroxybentazons and anthranilic acid via 2-amino-N-isopropylbenzamide.
Shipping
UN2588 Pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1—Poisonous materials, Technical Name Required.
Incompatibilities
Keep away from flammable materials, heat and flame. Risk of fire and explosion if formulations contain flammable/explosive solvents.
Waste Disposal
In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.
Bentazone Preparation Products And Raw materials
Raw materials
1of3
chevron_rightPreparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 | China | 12459 | 58 | Inquiry |
| Hebei Yanxi Chemical Co., Ltd. | +86-17531190177; +8617531190177 | China | 6011 | 58 | Inquiry |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | China | 21676 | 55 | Inquiry |
| career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29901 | 58 | Inquiry |
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 | China | 10259 | 58 | Inquiry |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 | China | 8828 | 58 | Inquiry |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | China | 39916 | 58 | Inquiry |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49391 | 58 | Inquiry |
| SIMAGCHEM CORP | +86-13806087780 | China | 17367 | 58 | Inquiry |