Bromacil
- CAS No.
- 314-40-9
- Chemical Name:
- Bromacil
- Synonyms
- 5-Br;Rout;Borea;hibor;Hyvar;uroxb;Bromax;Nalkil;Uragon;Urox B
- CBNumber:
- CB7381577
- Molecular Formula:
- C9H13BrN2O2
- Molecular Weight:
- 261.12
- MOL File:
- 314-40-9.mol
- Modify Date:
- 2024/3/14 15:18:27
| Melting point | 157-160°C |
|---|---|
| Density | 1.55 |
| vapor pressure | 0Pa at 25℃ |
| refractive index | 1.5410 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | DMSO: Soluble,Methanol: Slightly Soluble |
| pka | 8.79±0.40(Predicted) |
| form | Solid |
| color | White, tan |
| Water Solubility | 0.71g/L(25 ºC) |
| Merck | 13,1365 |
| BRN | 6804755 |
| Exposure limits | NIOSH REL: 1 ppm; ACGIH TLV: TWA 1 ppm. |
| Stability | Stable. Incompatible with strong acids, strong oxidizing agents. |
| LogP | 1.71 at 23℃ |
| CAS DataBase Reference | 314-40-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Bromacil(314-40-9) |
| EPA Substance Registry System | Bromacil (314-40-9) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H410 | |||||||||
| Precautionary statements | P264-P270-P273-P301+P312-P391-P501 | |||||||||
| Hazard Codes | Xn,N | |||||||||
| Risk Statements | 22-36/37/38-50-36 | |||||||||
| Safety Statements | 26-61 | |||||||||
| RIDADR | UN3077 9/PG 3 | |||||||||
| OEB | B | |||||||||
| OEL | TWA: 1 ppm (10 mg/m3) | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | YQ9100000 | |||||||||
| Toxicity | LD50 orally in rats: 5200 mg/kg (Sherman, Kaplan) | |||||||||
| NFPA 704 |
|
Bromacil Chemical Properties,Uses,Production
Description
Bromacil (CAS 314-40-9) belongs to a class of herbicides known as uracils, first developed by DuPont in 1962. Its herbicidal activity is due to inhibition of photosynthesis in several species of weeds and brush. Since its introduction in 1962, farmers in North and South America and Asia have used bromacil-containing herbicides for crop protection.
Chemical Properties
Bromacil is a noncombustible colorless, crystalline solid, which may be dissolved in a flammable liquid.
Uses
Bromacil is a nonselective inhibitor of photosynthesis, absorbed mainly through the root and used for general weed control on uncropped land at 5–15 kg/ha (2–4 kg/ha annual maintenance). It is also used for weed control in citrus plantations and for perennial grass control and annual pineapple plantations.
Definition
Substitute approved by EPA for some uses of 2,4,5-T.
General Description
Colorless to white odorless crystalline solid. Used as an herbicide. Commercially available as a wettable powder or in liquid formulations.
Reactivity Profile
Bromacil is incompatible with the following: Strong acids (decomposes slowly), oxidizers, heat, sparks, open flames .
Hazard
Possible carcinogen. Thyroid effects.
Agricultural Uses
Bromacil: Bromacil is used primarily for the control of annual and perennial grasses and broadleaf weeds, both nonselectively on noncrop lands and selectively for weed-control in citrus and pineapple crops. The top five applications in California for which this is used are oranges, lemons, grapefruit, and right-of-ways and landscapes. A limit of 0.1 mg/kg of agricultural products is set in several countries[35]. Not approved for use in EU countries.
Trade name
BOREA®; BOROCIL EXTRA®; α-BROMACIL 80 WP®; BROMAX®; CROPTEX ONYX®; CYNOGEN®; DuPontTM HERBICIDE 976®; EEREX®; FENOCIL®; HERBICIDE 976®; HIBOR; HYDON®; HYVAR®; HYVAR-X®; HYVAR X BROMACIL®; HYVAR X-L®; HYVAR X WEED KILLER®; HYVAR X-WS®; ISOCIL®; KROVAR®; NALKIL®; ROUT®; URAGAN®; URAGON®; UROX®; UROX B WATER SOLUBLE CONCENTRATE WEED KILLER®; UROX HX GRANULAR WEED KILLER®; WEED-BROOM® (mixture of DSMA, Bromacil & 2,4-D)
Potential Exposure
Used for general weed or brush control in noncrop areas and primarily for the control of annual and perennial grasses and broadleaf weeds, both nonselectively on noncrop lands and selectively for weed-control in a few crops (citrus and pineapple). A limit of 0.1 mg/kg of agricultural products is set in several countries. Those exposed will be those involved in manufacture, formulation, and application.
Carcinogenicity
No evidence of carcinogenic potential was seen in rats or dogs fed up to 1250 ppm bromacil for 2 years. Bromacil was not oncogenic in rats fed 50, 250, or 2500 ppm for 2 years. A marginal increase in the incidence of hepatocellular neoplasms was seen in mice fed 5000 ppm (but not 250 or 1250 ppm) for 18 months.
Metabolic pathway
The microorganism, a Pseudomonas sp. isolated from soil by using bromacil as a sole source of carbon and energy, shows a potential to decontaminate soil samples fortified with bromacil under laboratory conditions. The degradation pathways of bromacil by the Pseudomonas sp. may include 5-bromouracil as an intermediate which leads to 5- bromodihydroxyluracil. Ozonization, UV photolysis, and sensitized sunlight photodegradation of aqueous bromacil solution lead to photodegradation products. The ozonization yields three main products which are identified as 3-sec-butyl-5-acetyl-5-hydroxyhydantoin, 3-sec-butylparabanic acid, and 3-sec-butyl-5,5- dibromo-6-hydroxyuracil. The main products of photoirradiation are 3-sec-butyl-6-methyluracil, its dimeric compound, and 3-sec-butyl-5-acetyl-5- hydroxyhydantoin.
Shipping
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1—Poisonous materials, Technical Name Required.
Incompatibilities
Incompatible with strong acids; oxidizers, heat. Decomposes slowly in strong acids.
Waste Disposal
Bromacil should be incinerated in a unit operating @ 850° C equipped with gas scrubbing equipment
Bromacil Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 | China | 12447 | 58 | Inquiry |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | China | 21667 | 55 | Inquiry |
| career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29888 | 58 | Inquiry |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 | China | 8821 | 58 | Inquiry |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | China | 39916 | 58 | Inquiry |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49392 | 58 | Inquiry |
| SIMAGCHEM CORP | +86-13806087780 | China | 17367 | 58 | Inquiry |
| TargetMol Chemicals Inc. | +1-781-999-5354 +1-00000000000 | United States | 19892 | 58 | Inquiry |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | China | 34571 | 58 | Inquiry |
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