Methazole (2-(3,4-Dichlorophenyl)-4-methyl-1,2,4- oxadiazolidine-3,5-dione) cas no:20354-26-1

NameMethazole (2-(3,4-Dichlorophenyl)-4-methyl-1,2,4- oxadiazolidine-3,5-dione)
CAS20354-26-1
Synonyms2-(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
EINECS(EC#)243-761-6
Molecular FormulaC9H6 Cl2 N2 O3
Molecular Weight261.062

refractive index1.618
storage temp0-6°C

Hazard Xn,N
Safety

Moderately toxic by ingestion. When heated to decomposition it emits very toxic fumes of Cl⁻ and NO_x. 
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.

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.