109. Acifluorfen

Nomenclature

CAS number: 50594-66-6
5-[2-Chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid.
C14H7ClF3NO5; mol wt 361.66.
C 46.49%, H 1.95%, Cl 9.80%, F 15.76%, N 3.87%, O 22.12%.

Description and references

Selective pre- and post-emergence herbicide. Prepn: H. O. Bayer et al., DE 2311638; eidem, US 3928416, US 4063929 (1973, 1975, 1977 all to Rohm & Haas). Synthesis, activity and toxicity: W. O. Johnson et al., J. Agric. Food Chem. 26, 285 (1978). Carcinogenicity studies: J. A. Quest et al., Regul. Toxicol. Pharmacol. 10, 149 (1989).

Chemical structure

Properties

Off-white solid, mp 151.5-157°.

Derivative

Sodium salt.

Nomenclature

CAS number: 62476-59-9
Scifluorfen; RH-6201; Blazer (BASF).
C14H6ClF3NNaO5; mol wt 383.64.
C 43.83%, H 1.58%, Cl 9.24%, F 14.86%, N 3.65%, Na 5.99%, O 20.85%.

Properties

White powder, mp 124-125°. Soly in water >25%. LD50 orally in rats: 1300 mg/kg (Johnson).

Caution

Skin and eye irritant. Do not incorporate in soil. Do not mix with oils, surfactants, liquid fertilizers or other pesticides.

Use

Herbicide.