9678. Triflumuron

Nomenclature

CAS number: 64628-44-0
2-Chloro-N-[[[4-(trifluoromethoxy)phenyl]amino]carbonyl]benzamide; N-(2-chlorobenzoyl)-N′-[4-(trifluoromethoxy)phenyl]urea; trifluron; SIR-8514; BAY SIR 8514; Alsystin (Bayer); Baycidal (Bayer); Starycide (Bayer).
C15H10ClF3N2O3; mol wt 358.70.
C 50.23%, H 2.81%, Cl 9.88%, F 15.89%, N 7.81%, O 13.38%.

Description and references

Arthropod insecticide which inhibits chitin biosynthesis: Prepn: W. Sirrenberg et al., DE 2601780 corresp to US 4139636 (1977, 1979 both to Bayer AG); BE 867046 corresp to R. H. Rigterink, US 4170657 (1978, 1979 both to Dow Chemical). Insecticidal activity: C. H. Schaefer et al., J. Econ. Entomol. 71, 427 (1978); S. C. Chang, ibid. 72, 479 (1979). Stability under field conditions: C. H. Schaefer, E. F. Dupras, J. Agric. Food Chem. 27, 1031 (1979). Comprehensive description: G. Zoebelein et al., Z. Angew. Entomol. 89, 289-297 (1980).

Chemical structure

Properties

Crystals, mp 198° (Sirrenberg). Also reported as mp 188-190° (Rigterink). Slightly toxic to fish. Safe to bees. LD50 in rats, mice (mg/kg): >5000, >5000 i.p., s.c., orally (Zoebelein).

Use

Insecticide (larvicide).