Title: Oxadiargyl
CAS Registry Number: 39807-15-3
CAS Name: 3-[2,4-Dichloro-5-(2-propynyloxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2(3H)-one
Additional Names: 5-tert-butyl-3-(2,4-dichloro-5-propargyloxyphenyl)-1,3,4-oxadiazol-2-(3H)-one
Trademarks: Raft (Rhone-Poulenc); Topstar (Rhone-Poulenc)
Molecular Formula: C15H14Cl2N2O3
Molecular Weight: 341.19
Percent Composition: C 52.80%, H 4.14%, Cl 20.78%, N 8.21%, O 14.07%
Literature References: Protoporphyrinogen IX oxidase inhibitor; pre-emergence herbicide for use in rice and other food crops. Prepn: R. Boesch, DE 2227012; idem, US 3818026 (1972, 1974 both to Rhone-Poulenc). Properties and field trials: R. Dickmann et al., Brighton Crop Prot. Conf. - Weeds 1997, 51; G. Tracchi et al., ibid. 885.
Properties: Odorless, white powder with little agglomerates, mp 131°. Soly in water (20°): 0.37 mg/l. LD50 in rats (mg/kg): >5000 orally; >2000 dermally; LC50 (4 hr) in rats: >5.16 mg/l (Dickmann).
Melting point: mp 131°
Toxicity data: LD50 in rats (mg/kg): >5000 orally; >2000 dermally; LC50 (4 hr) in rats: >5.16 mg/l (Dickmann)
Use: Herbicide. |