Home > Name List By n > N-(2,6-difluorophenyl)-5-methyl-[1,2,4]triazolo[1, 5-a]pyrimidine-2-sulfonamide

CAS No 98967-40-9 , N-(2,6-difluorophenyl)-5-methyl-[1,2,4]triazolo[1,
5-a]pyrimidine-2-sulfonamide

  • Name: N-(2,6-difluorophenyl)-5-methyl-[1,2,4]triazolo[1,
    5-a]pyrimidine-2-sulfonamide
  • Synonyms: XRD 498; DE 498;N-(2,6-difluorophenyl)-5-methyl-[1,2,4]triazolo[1,
    5-a]pyrimidine-2-sulfonamide; 98967-40-9; N-(2,6-difluorophenyl)-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-sulfonamide;Broadstrike;
  • CAS Registry Number:
  • Melting Point: 251-253
  • Density: 1.66g/cm3
  • Refractive index: 1.703
  • Hazard Symbols: Xi
  • Molecular Weight: 325.293966
  • InchiKey: RXCPQSJAVKGONC-UHFFFAOYSA-N
  • InChI: InChI=1S/C12H9F2N5O2S/c1-7-5-6-19-11(15-7)16-12(17-19)22(20,
    21)18-10-8(13)3-2-4-9(10)14/h2-6,18H,1H3
  • Molecular Formula: C12H9F2N5O2S
  • Molecular Structure:CAS No:98967-40-9 N-(2,6-difluorophenyl)-5-methyl-[1,2,4]triazolo[1,<br />5-a]pyrimidine-2-sulfonamide

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References of N-(2,6-difluorophenyl)-5-methyl-[1,2,4]triazolo[1,
5-a]pyrimidine-2-sulfonamide
Title: Flumetsulam
CAS Registry Number: 98967-40-9
CAS Name: N-(2,6-Difluorophenyl)-5-methyl[1,2,4]triazolo-[1,5-a]pyrimidine-2-sulfonamide
Manufacturers' Codes: DE-498
Trademarks: Broadstrike (Dow AgroSci.); Python (Dow AgroSci.)
Molecular Formula: C12H9F2N5O2S
Molecular Weight: 325.29
Percent Composition: C 44.31%, H 2.79%, F 11.68%, N 21.53%, O 9.84%, S 9.86%
Literature References: Selective inhibitor of acetolactate synthase, a key enzyme in branched chain amino acid biosynthesis. Prepn: W. A. Kleschick et al., EP 142152 (1985 to Dow). Improved process: L. H. McKendry, US 4910306 (1990 to Dow). Synthesis, toxicity and herbicidal activity: W. A. Kleschick et al., J. Agric. Food Chem. 40, 1083 (1992). Degradation in soil: R. G. Lehmann et al., Weed Res. 33, 187 (1993). Metabolism in wheat, corn and barley: D. S. Frear et al., Pestic. Biochem. Physiol. 45, 178 (1993).
Properties: White powder, mp 250-251°. pKa 4.6. Partition coefficient (octanol/water): 0.21. Vapor pressure (25°): 3.7 ′ 10-13 Pa. Soly in water (g/l): 0.049 (pH 2.5); 5.65 (pH 7). LD50 in rats (mg/kg): >5000 orally; in rabbits (mg/kg): >2000 dermally (Kleschick, 1992).
Melting point: mp 250-251°
pKa: pKa 4.6
Log P: Partition coefficient (octanol/water): 0.21
Toxicity data: LD50 in rats (mg/kg): >5000 orally; in rabbits (mg/kg): >2000 dermally (Kleschick, 1992)
Use: Herbicide.