Common name: Lactofen
IUPAC name: ethyl O-[5-(2-chloro-a,a,a-trifluoro-p-tolyloxy)-2-nitrobenzoyl]-DL-lactate
Chemical Abstracts name:
(±-2-ethoxy-1-methyl-2-oxoethyl 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoate
CAS RN:[77501-63-4]
PHYSICAL CHEMISTRY
Mol. wt.: 461.8
Form:Dark brown to tan.
M.p.: 44-46 °C
V.p.: 9.3×10-3 mPa (20 °C)
Henry:4.56×10-3 Pa m3 mol-1 (20°C, calc.)
S.g./density: 1.391 (25 °C)
Solubility In water <1 mg/l (20 ºC).
Stability No decomposition at ambient temperatures for 6 months.
TOXICOLOGY
Oral Acute oral LD50 for rats >5000 mg/kg.
Skin and eye Acute percutaneous LD50 for rats 2000 mg/kg. Formulation severely irritating to eyes.
Inhalation LC50 (4 h) for rats >5.3 mg/l.
Toxicity class
EPA (formulation) IV
ECOTOXICOLOGY
Birds Acute oral LD50 for quail >2510 mg/kg. LC50 for ducks and quail >5620 ppm.
Fish LC50 (96 h) for bluegill sunfish and rainbow trout >100 ppb.
Daphnia LD50 >100 ppb.
Bees LD50 >160 mg/bee.
