9984. Vinclozolin

Nomenclature

CAS number: 50471-44-8
3-(3,5-Dichlorophenyl)-5-ethenyl-5-methyl-2,4-oxazolidinedione; 3-(3,5-dichlorophenyl)-5-methyl-5-vinyloxazolidine-2,4-dione; BAS-352F; Ronilan (BASF); Vorlan (Mallinckrodt).
C12H9Cl2NO3; mol wt 286.11.
C 50.38%, H 3.17%, Cl 24.78%, N 4.90%, O 16.78%.

Description and references

Prepn: D. Mangold et al., DE 2207576 (1973 to BASF), C.A. 79, 137120q (1973). Activity: C. Hess, F. Locher, Proc. 8th Br. Insectic. Fungic. Conf. 2, 693 (1975). Comparative mechanism of action: A. C. Pappas, D. J. Fisher, Pestic. Sci. 10, 239 (1979).

Chemical structure

Properties

Crystalline solid, mp 108°. Soly in water at 20°: 1 g/l. Soly in (g/kg): acetone 435; benzene 146; chloroform 319; ethyl acetate 253. Slowly hydrolyzed in alkaline soln. LD50 orally in rats: 10 g/kg (Hess, Locher).

Caution

Causes eye and skin irritation; potential skin sensitizer (Mallinckrodt Technical Data Sheet).

Use

Agricultural fungicide.