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Cas Database |
| Name |
Methazole |
EINECS | 243-761-6 |
| CAS No. | 20354-26-1 | Density | 1.602 g/cm3 |
| PSA | 57.14000 | LogP | 1.43600 |
| Solubility | 1.5mg/L(25 oC) | Melting Point |
123-124oC |
| Formula | C9H6 Cl2 N2 O3 | Boiling Point | 348.7 °C at 760 mmHg |
| Molecular Weight | 261.064 | Flash Point | 164.7 °C |
| Transport Information | N/A | Appearance | N/A |
| Safety | Moderately toxic by ingestion. When heated to decomposition it emits very toxic fumes of Cl− and NOx. | Risk Codes | 21/22-36/38-51/53 |
| Molecular Structure |
|
Hazard Symbols | Xn,N |
| Synonyms |
2-(3,4-Dichlorophenyl)-4-methyl-1,2,4-oxadiazolidine-3,5-dione;Bioxone; Chlormethazole; Metazol; Metazole; Methazole; Mezopur; Probe; Probe75; Tunic; Tunic (pesticide); VCS 438 |
Article Data | 8 |
Methazole Chemical Properties
Chemistry informtion about Methazole (CAS NO.20354-26-1) is:
IUPAC Name: 2-(3,4-Dichlorophenyl)-4-Methyl-1,2,4-Oxadiazolidine-3,5-Dione
Synonyms: 2-(3,4-Dichlorophenyl)-4-Methyl-1,2,4-Oxadiazolidine-3,5-Dione ; Methazole ; 1,2,4-Oxadiazolidine-3,5-Dione, 2-(3,4-Dichlorophenyl)-4-Methyl- ; 2-(3,4-Dichlorophenyl)-4-Methyl-1,2,4-Oxadiazolidinedione ; 4-Oxadiazolidine-3,5-Dione,2-(3,4-Dichlorophenyl)-4-Methyl-2 ; Bioxone ; Chlormethazole ; Metazol
MF: C9H6Cl2N2O3
MW: 261.06
EINECS: 243-761-6
Density: 1.602 g/cm3
Flash Point: 164.7 °C
Boiling Point: 348.7 °C at 760 mmHg
Vapour Pressure: 4.94E-05 mmHg at 25°C
Enthalpy of Vaporization: 59.31 kJ/mol
Storage temp.: 0-6°C
Following is the molecular structure of Methazole (CAS NO.20354-26-1) is:
Methazole Uses
Methazole (CAS NO.20354-26-1) is used in a variety of upland control broadleaf weeds and some grassy weeds.
Methazole Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 600mg/kg (600mg/kg) | Journal of Agricultural and Food Chemistry. Vol. 21, Pg. 386, 1973. | |
| rabbit | LD50 | skin | 12500mg/kg (12500mg/kg) | Farm Chemicals Handbook. Vol. -, Pg. C248, 1991. | |
| rat | LC50 | inhalation | > 200gm/m3/4H (200000mg/m3) | Pesticide Manual. Vol. 9, Pg. 565, 1991. | |
| rat | LD50 | oral | 777mg/kg (777mg/kg) | Fundamental and Applied Toxicology. Vol. 7, Pg. 299, 1986. | |
| rat | LD50 | skin | 10200mg/kg (10200mg/kg) | "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 890, 1986. |
Methazole Safety Profile
Moderately toxic by ingestion. When heated to decomposition it emits very toxic fumes of Cl− and NOx.
Hazard Codes:
Xn
N
Risk Statements:
R21/22:Harmful in contact with skin and if swallowed.
R36/38:Irritating to eyes and skin.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements:
S36/37:Wear suitable protective clothing and gloves.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
Methazole Specification
Methazole (CAS NO.20354-26-1) is a colorless crystals to light tan solid and it is non corrosive. It hydrolyzed by strong acids and bases. Also it is a herbicide in the family of herbicides known as oxadiazolones.
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