Metribuzin

Suppliers

Names

[ Name ]:
Metribuzin

[Synonym ]:
4-amino-6-tert-butyl-4,5-dihydro-3-methylthio-1,2,4-triazin-5-one
Lexone DF
Sencorer
Sencoral
Sencorex
1,2,4-triazinone
MFCD00055525
Sengoral
4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one
4-amino-6-tert-butyl-3-(methylsulfanyl)-1,2,4-triazin-5(4H)-one
4-amino-6-tert-butyl-3-methylsulfanyl-1,2,4-triazin-5-one
Sencor 75DF
4-Amino-6-(2-methyl-2-propanyl)-3-(methylsulfanyl)-1,2,4-triazin-5(4H)-one
BAY 6159H
4-amino-6-tert-butyl-3-methylthio-1,2,4-triazin-5(4H)-one
Sencor DF
Sencor 4
4-amino-6-tert-butyl-3-methylthio-1,2,4-triazin-5-one
EINECS 244-209-7
Sencor
Lexone
Metribuzine
1,2,4-Triazin-5(4H)-one, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-
4-Amino-6-tert-butyl-3-(methylsulfanyl)-1,2,4-triazin-5(4H)-on
Metribuzin
Senkor
Zenkor
Sencorex L.F.

Chemical & Physical Properties

[ Density]:
1.3±0.1 g/cm3

[ Boiling Point ]:
312.4±25.0 °C at 760 mmHg

[ Melting Point ]:
125°C

[ Molecular Formula ]:
C₈H₁₄N₄OS

[ Molecular Weight ]:
214.288

[ Flash Point ]:
142.7±23.2 °C

[ Exact Mass ]:
214.088837

[ PSA ]:
99.10000

[ LogP ]:
1.30

[ Vapour Pressure ]:
0.0±0.7 mmHg at 25°C

[ Index of Refraction ]:
1.618

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: XZ2990000

CHEMICAL NAME :: as-Triazin-5(4H)-one, 4-amino-6-tert-butyl-3-(methylthio)-

CAS REGISTRY NUMBER :: 21087-64-9

BEILSTEIN REFERENCE NO. :: 0746650

LAST UPDATED :: 199712

DATA ITEMS CITED :: 34

MOLECULAR FORMULA :: C8-H14-N4-O-S

MOLECULAR WEIGHT :: 214.32

WISWESSER LINE NOTATION :: T6NN DNVJ CS1 DZ FX1&1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1100 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave., Willoughy, OH 44094) Volume(issue)/page/year: -,C204,1991

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >860 mg/m3/4H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) V.1- 1976- Volume(issue)/page/year: 12,127,1987

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1001,1986

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 239 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) V.1- 1976- Volume(issue)/page/year: 12,127,1987

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 814 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) V.1- 1976- Volume(issue)/page/year: 12,127,1987

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 564 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) V.1- 1976- Volume(issue)/page/year: 12,127,1987

TYPE OF TEST :: LC - Lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >860 mg/m3/4H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85INA8 "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986 Volume(issue)/page/year: 6,1042,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) V.1- 1976- Volume(issue)/page/year: 12,127,1987

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 210 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity)

REFERENCE :: PCBPBS Pesticide Biochemistry and Physiology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1971- Volume(issue)/page/year: 23,123,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 367 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) V.1- 1976- Volume(issue)/page/year: 12,127,1987

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - cat

DOSE/DURATION :: >500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85JFAN "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd, eds., Nottingham, Royal Soc. of Chemistry, 1983-86 Volume(issue)/page/year: A280,1983

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >20 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave., Willoughy, OH 44094) Volume(issue)/page/year: -,C204,1991

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 250 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85DPAN "Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel," Perkow, W., Berlin, Verlag Paul Parey, 1971-1976 Volume(issue)/page/year: -,-,1971/1976

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - quail

DOSE/DURATION :: 164 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: PEMNDP Pesticide Manual. (The British Crop Protection Council, 20 Bridport Rd., Thornton Heath CR4 7QG, UK) V.1- 1968- Volume(issue)/page/year: 8,573,1987

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Unreported

SPECIES OBSERVED :: Bird - quail

DOSE/DURATION :: 168 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FMCHA2 Farm Chemicals Handbook. (Meister Pub., 37841 Euclid Ave., Willoughy, OH 44094) Volume(issue)/page/year: -,C204,1991 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 64800 ug/kg/15W-C

TOXIC EFFECTS :: Brain and Coverings - other degenerative changes

REFERENCE :: JTEHD6 Journal of Toxicology and Environmental Health. (Hemisphere Pub., 1025 Vermont Ave., NW, Washington, DC 20005) V.1- 1975/76- Volume(issue)/page/year: 30,209,1990

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4550 mg/kg/26W-I

TOXIC EFFECTS :: Immunological Including Allergic - increased immune response

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 52(11),76,1987

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 13140 mg/kg/2Y-C

TOXIC EFFECTS :: Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) V.1- 1976- Volume(issue)/page/year: 12,127,1987

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: 27375 mg/kg/2Y-C

TOXIC EFFECTS :: Kidney, Ureter, Bladder - changes in tubules (including acute renal failure, acute tubular necrosis) Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death

REFERENCE :: NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) V.1- 1976- Volume(issue)/page/year: 12,127,1987 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 1 gm/kg

SEX/DURATION :: female 6-15 day(s) after conception

REFERENCE :: NNGADV Nippon Noyaku Gakkaishi. Journal of the Pesticide Science Society of Japan. (Nippon Noyaku Gakkai, 1-43-11, Komagome, Toshima-ku, Tokyo 170, Japan) V.1- 1976- Volume(issue)/page/year: 12,127,1987 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-TWA 5 mg/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 5 mg/m3 JAN 1993 OEL-BELGIUM:TWA 5 mg/m3 JAN 1993 OEL-DENMARK:TWA 5 mg/m3 JAN 1993 OEL-FRANCE:TWA 5 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 5 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO METRIBUZIN-air:10H TWA 5 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992

Safety Information

[ Symbol ]:

GHS02, GHS07

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H225-H302-H302 + H312 + H332-H312-H319-H332

[ Precautionary Statements ]:
P210-P280-P305 + P351 + P338

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
Xn:Harmful

[ Risk Phrases ]:
R22;R50/53

[ Safety Phrases ]:
2-60-61-36-26-16

[ RIDADR ]:
UN3077 9/PG 3

[ RTECS ]:
XZ2990000

[ HS Code ]:
2933699014

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

Methyl chlorosulfonate
4-Amino-6-(tert-butyl)-3-mercapto-1,2,4-triazin-5(4H)-one
methyl iodide
Methyl bromide

DownStream

TYCOR (TM)
metribuzin-desamino
metribuzin-diketo
DADK
N-Methyl Metribuzin

Customs

[ HS Code ]: 2933699014

[ Summary ]:
2933699014 4-amino-6-(tert-butyl)-3-(methylthio)-1,2,4-triazin-5(4h)-one。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:20.0%

Articles

Quantification of triazine herbicides in soil by microwave-assisted extraction and high-performance liquid chromatography.

Environ. Monit. Assess. 178(1-4) , 111-9, (2011)

A method for the determination of herbicides residues, triazine (atrazine, metribuzin, ametryn, and terbutryn), in soil samples with high-performance liquid chromatography (HPLC)-UV detection is descr...

Controlled release formulations of metribuzin: release kinetics in water and soil.

J. Environ. Sci. Health B 45 , 330-335, (2010)

Controlled release (CR) formulations of metribuzin in Polyvinyl chloride [(PVC) (emulsion)], carboxy methyl cellulose (CMC), and carboxy methyl cellulose-kaolinite composite (CMC-KAO), are reported. K...

Reduced downward mobility of metribuzin in fly ash-amended soils.

J. Environ. Sci. Health B 48(7) , 587-92, (2013)

Metribuzin, a triazine herbicide, is poorly sorbed in the soils, therefore leaches to lower soil profile. Fly ash amendment, which enhanced metribuzin sorption in soils, may play a significant role in...

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