CHLOROXURON
- CAS No.
- 1982-47-4
- Chemical Name:
- CHLOROXURON
- Synonyms
- Norex;C 1983;c-1933;Tenoran;Temoran;ciba1983;Gesamoos;CIBA 1983;TENORAN(R);Chloroxupon
- CBNumber:
- CB7113279
- Molecular Formula:
- C15H15ClN2O2
- Molecular Weight:
- 290.74
- MOL File:
- 1982-47-4.mol
- Modify Date:
- 2024/3/14 15:18:27
| Melting point | 151-152℃ |
|---|---|
| Boiling point | 459.3±41.0 °C(Predicted) |
| Density | 1.270 |
| refractive index | 1.5200 (estimate) |
| Flash point | >100 °C |
| storage temp. | 0-6°C |
| solubility | Chloroform (Slightly), DMSO (Slightly) |
| pka | 14.37±0.70(Predicted) |
| Water Solubility | 3.7mg/L(20 ºC) |
| BRN | 2814275 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| EPA Substance Registry System | Chloroxuron (1982-47-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS09 |
|---|---|
| Signal word | Warning |
| Hazard statements | H332-H400 |
| Precautionary statements | P273-P304+P340+P312 |
| Hazard Codes | N |
| Risk Statements | 50/53 |
| Safety Statements | 60-61 |
| RIDADR | UN3077 9/PG 3 |
| WGK Germany | 2 |
| RTECS | YS6125000 |
| Toxicity | LC50 (96-hour) for rainbow trout >100 mg/L, bluegill sunfish 28 mg/L and crucian carp >150 mg/L (Hartley and Kidd, 1987); LC50 (48-hour) for bluegill sunfish 25.0 mg/L (Verschueren, 1983); acute oral LD50 for male and female rats 3,700 and 5,400 mg/kg, respectively (Hartley and Kidd, 1987). |
CHLOROXURON Chemical Properties,Uses,Production
Chemical Properties
Chloroxuron is a combustible, colorless crystalline solid
Uses
Herbicide.
General Description
Odorless colorless powder or white crystals. Used as a selective pre- and early post-emergence herbicide in soybeans, strawberries, various vegetable crops and ornamentals. Root- and foliage-absorbed herbicide selective in leek, celery, onion, carrot and strawberry.
Reactivity Profile
Fire may produce irritating or poisonous gases. When heated to decomposition CHLOROXURON emits very toxic fumes of chlorides and nitrogen oxides. [EPA, 1998].
Health Hazard
This is highly toxic by ingestion. Under certain conditions, CHLOROXURON will form carcinogenic dimethylnitrosamine.
Fire Hazard
(Non-Specific -- Pesticide, Solid, n.o.s.) Fire may produce irritating or poisonous gases. When heated to decomposition CHLOROXURON emits very toxic fumes of chlorides and nitrogen oxides.
Potential Exposure
A potential danger to those involved in the manufacture, formulation, and application of chloroxuron for use as a selective pre- and early postemergency herbicide in soybeans, strawberries; various vegetable crops, and ornamentals. It is a root- and foliageabsorbed herbicide selective in leek, celery, onion, carrot, and strawberry.
Environmental Fate
Soil. Hartley and Kidd (1987) reported 4-(4-chlorophenoxy)aniline as a soil metabolite.
Chloroxuron was degraded by microorganisms in humus soil and a sandy loam to form
N′-(4-chlorophenoxy)phenyl-N-methylurea, N′-(4-chloro-phenoxy)phenylurea and (4-
chlorophenoxy)aniline and two minor unidentified compounds (Geissbühler et al., 1963a).
Residual activity in soil is limited to approximately 4 months (Hartley and Kidd, 1987).
Plant. In plants, chloroxuron is degraded to monomethylated and demethylated derivatives followed by decarboxylation forming 4-(4-chlorophenoxy)aniline (Humburg et al.,
1989)
Photolytic. The UV irradiation of an aqueous solution of chloroxuron for 13 hours
resulted in 90% decomposition of the herbicide. Products identified (% yield) were mono-
(2.2%) and didemethylated (4.2%) products and carbon dioxide (64%) (Plimmer
Chemical/Physical. Hydrolyzes in strong acids and bases forming 4-(4-chloro-phenoxy)aniline (Hartley and Kidd, 1987). Emits toxic fumes of nitrogen oxides, cyanides
and chlorine when heated to decomposition (Sax and Lewis, 1987)
Shipping
UN2767 Phenylurea pesticides, solid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials
Incompatibilities
Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.
Waste Disposal
Incinerate in a unit with effluent gas scrubbing. 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.
CHLOROXURON Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | China | 39916 | 58 | Inquiry |
| LGC Standards | +44 (0)20 8943 8480 | United Kingdom | 6495 | 0 | Inquiry |
| Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 | China | 9003 | 58 | Inquiry |
| Shandong Xiya Chemical Co., Ltd. | 4009903999 13395398332 | China | 20810 | 60 | Inquiry |
| Shanghai Haohong Pharmaceutical Co., Ltd. | 4008210725 4008210725 | China | 55023 | 58 | Inquiry |
| Hubei Wanye Zhongcheng Chemical Reagent Co., Ltd. | 18671296875 | China | 4065 | 58 | Inquiry |
| United States Biological | 800.520.3011 or 781.639.5092 | United States | 6256 | 80 | Inquiry |
| Shanghai Bikai Technology Co. , Ltd. | 18516304666 | China | 3101 | 58 | Inquiry |
| Shaanxi DIDU pharmaceutical and Chemical Co., Ltd | 15229059051 | China | 9967 | 58 | Inquiry |