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CAS No 21087-64-9 , 4-amino-6-tert-butyl-3-methylsulfanyl-1,2,4-triazin-5-one

  • Name: 4-amino-6-tert-butyl-3-methylsulfanyl-1,2,4-triazin-5-one
  • Synonyms: Zenkor; Sencor DF; Senkor; Sencorex; 21087-64-9; Metribuzine; Lexone DF; Lexone;4-amino-6-tert-butyl-3-methylsulfanyl-1,2,4-triazin-5-one;Sencor;
  • CAS Registry Number:
  • Transport: UN3077 9/PG 3
  • Melting Point: 125 ºC
  • Density: 1.28
  • Refractive index: 1.617
  • Safety Statements: R22;R50/53
  • Hazard Symbols: Xn: Harmful;N: Dangerous for the environment;
  • EINECS: 244-209-7
  • Molecular Weight: 214.28796
  • InchiKey: FOXFZRUHNHCZPX-UHFFFAOYSA-N
  • InChI: InChI=1S/C8H14N4OS/c1-8(2,3)5-6(13)12(9)7(14-4)11-10-5/h9H2,1-4H3
  • Risk Statements: S2;S60;S61
  • Molecular Formula: C8H14N4OS
  • Molecular Structure:CAS No:21087-64-9 4-amino-6-tert-butyl-3-methylsulfanyl-1,2,4-triazin-5-one

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References of 4-amino-6-tert-butyl-3-methylsulfanyl-1,2,4-triazin-5-one
Title: Metribuzin
CAS Registry Number: 21087-64-9
CAS Name: 4-Amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one
Synonyms: 4-amino-6-tert-butyl-3-(methylthio)-as-triazin-5(4H)-one
Manufacturers' Codes: Bay 94337
Trademarks: Lexone (DuPont); Sencor (Bayer CropSci.); Sencoral (Bayer CropSci.)
Molecular Formula: C8H14N4OS
Molecular Weight: 214.29
Percent Composition: C 44.84%, H 6.59%, N 26.15%, O 7.47%, S 14.96%
Literature References: Pre- and post-emergence triazone herbicide. Prepn: BE 697083; K. Westphal et al., US 3671523 (1967, 1972 both to Bayer AG). Physicochemical properties, toxicology and herbicidal activity: L. Eue, Pflanzenschutz-Nachr. 25, 175 (1972). Toxicity data: E. Loeser, G. Kimmerle, ibid. 186. HPLC determn in plant tissues: C. E. Parker, G. H. Degen, J. Liq. Chromatogr. 6, 725 (1983).
Properties: White crystalline solid, mp 125-126.5°. d420 1.28. Vapor pressure at 20°: <10-5 mm Hg. Sol in methanol, ethanol. Soly in water: 1200 ppm. LD50 orally in rats: 2200 mg/kg; LC50 in rainbow trout: >10 ppm (Loeser, Kimmerle).
Melting point: mp 125-126.5°
Density: d420 1.28
Toxicity data: LD50 orally in rats: 2200 mg/kg; LC50 in rainbow trout: >10 ppm (Loeser, Kimmerle)
CAUTION: Potential symptoms of overexposure in exptl animals are CNS depression; thyroid, liver and enzyme changes. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 216.
Use: Herbicide.