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Metribuzin cas no:21087-64-9

Synonyms: 4-Amino-6-(1,1-dimethylethyl)-3-methylthio-1,2,4-triazine-5-tetrahydrogenketone; Sencor; Lexone; 4-Amino-6-Tert-Butyl-3-(Methylthio)-1,2,4-Triazin-5-One; Sencoral(Bayer); Lexone(du pont); 4-amino-6-tert-butyl-3-methylthio-1,2,4-triazine-5-(4H)-one; 4-Amino-6-tert-butyl-3-(methylthio)-1,2,4-triazin-5(4H)-one; 1,2,4-triazin-5(4H)-one; PRETILACHLOR; 2-Chloro-N-(2,6-diethylphenyl)-N-(2-propoxyethyl)acetamide; 4-Amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one

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Identification
NameMetribuzin
CAS21087-64-9
Synonyms4-Amino-6-(1,1-dimethylethyl)-3-methylthio-1,2,4-triazine-5-tetrahydrogenketone; Sencor; Lexone; 4-Amino-6-Tert-Butyl-3-(Methylthio)-1,2,4-Triazin-5-One; Sencoral(Bayer); Lexone(du pont); 4-amino-6-tert-butyl-3-methylthio-1,2,4-triazine-5-(4H)-one; 4-Amino-6-tert-butyl-3-(methylthio)-1,2,4-triazin-5(4H)-one; 1,2,4-triazin-5(4H)-one; PRETILACHLOR; 2-Chloro-N-(2,6-diethylphenyl)-N-(2-propoxyethyl)acetamide; 4-Amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one
EINECS(EC#)244-209-7
Molecular FormulaC8H14N4OS
Molecular Weight214.28
Chemical Properties
Appearancecolorless crystalline solid
refractive index1.617
storage tempAPPROX 4°C
Safety Data

Hazard Xn:Harmful
Risk R22;R50/53
Safety

Poison by ingestion and intraperitoneal routes. Low toxicity by skin contact. When heated to decomposition it emits very toxic fumes of NOx and SOx.?
Hazard Codes:?HarmfulXn,DangerousN,FlammableF
Risk Statements: 22-50/53-36-20/21/22-11?
R22:Harmful if swallowed.?
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.?
R36:Irritating to eyes.?
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.?
R11:Highly flammable.
Safety Statements: 2-60-61-36-26-16?
S2:Keep out of the reach of children.?
S60:This material and its container must be disposed of as hazardous waste.?
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.?
S36:Wear suitable protective clothing.?
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.?
S16:Keep away from sources of ignition.
RIDADR: UN3077 9/PG 3
RTECS: XZ2990000


Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cat LD50 oral > 500mg/kg (500mg/kg) ? "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd, eds., Nottingham, Royal Soc of Chemistry, 1983-86Vol. A280, Pg. 1983,
guinea pig LD50 oral 250mg/kg (250mg/kg) ? "Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel," Perkow, W., Berlin, Verlag Paul Parey, 1971-1976Vol. -, Pg. -, 1971/1976.
mouse LC inhalation > 860mg/m3/4H (860mg/m3) ? "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986Vol. 6, Pg. 1042, 1991.
mouse LD50 intraperitoneal 210mg/kg (210mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) Pesticide Biochemistry and Physiology. Vol. 23, Pg. 123, 1984.
mouse LD50 oral 564mg/kg (564mg/kg) ? Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 12, Pg. 127, 1987.
mouse LD50 skin > 1gm/kg (1000mg/kg) ? Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 12, Pg. 127, 1987.
mouse LD50 subcutaneous 367mg/kg (367mg/kg) ? Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 12, Pg. 127, 1987.
quail LD50 oral 164mg/kg (164mg/kg) ? Pesticide Manual. Vol. 8, Pg. 573, 1987.
quail LD50 unreported 168mg/kg (168mg/kg) ? Farm Chemicals Handbook. Vol. -, Pg. C204, 1991.
rabbit LD50 skin > 20gm/kg (20000mg/kg) ? Farm Chemicals Handbook. Vol. -, Pg. C204, 1991.
rat LC50 inhalation > 860mg/m3/4H (860mg/m3) ? Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 12, Pg. 127, 1987.
rat LD50 intraperitoneal 239mg/kg (239mg/kg) ? Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 12, Pg. 127, 1987.
rat LD50 oral 1100mg/kg (1100mg/kg) ? Farm Chemicals Handbook. Vol. -, Pg. C204, 1991.
rat LD50 skin 2gm/kg (2000mg/kg) ? "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1001, 1986.
rat LD50 subcutaneous 814mg/kg (814mg/kg) ? Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. Vol. 12, Pg. 127, 1987.

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