CAS No 143390-89-0 , methyl (2E)-2-methoxyimino-2-[2-[(2-methylphenoxy)methyl]phenyl]acetate

Title: Kresoxim-methyl
CAS Registry Number: 143390-89-0
CAS Name: (aE)-a-(Methoxyimino)-2-[(2-methylphenoxy)methyl]benzeneacetic acid methyl ester
Synonyms: methyl-(E)-methoxyimino[a-(o-tolyloxy)-o-tolyl]acetate
Manufacturers' Codes: BAS-490 F; BAS-490-02F
Trademarks: Candit (BASF); Sovran (BASF); Stroby (BASF)
Molecular Formula: C18H19NO4
Molecular Weight: 313.35
Percent Composition: C 68.99%, H 6.11%, N 4.47%, O 20.42%
Literature References: Synthetic strobilurin fungicide which inhibits mitochondrial respiration by blocking electron transfer at bc1 complex. Prepn: B. Wenderoth et al., DE 3623921; eidem, US 4829085 (1988, 1989 both to BASF). Description of chemical properties and biological activities: E. Ammermann et al., Brighton Crop Prot. Conf. - Pests Dis. 1992, 403. Fungicidal effects on spore germination: R. E. Gold, G. M. Leinhos, Pestic. Sci. 43, 250 (1995). Field trials against scab and powdery mildew on fruit: P. Creemers et al., Meded. Fac. Landbouwwet. Univ. Gent 61, 431 (1996); A. Brunelli et al., Brighton Crop Prot. Conf. - Pests Dis. 1996, 137. Review: R. E. Gold et al., Mod. Fungic. Antifungal Compd., 11th Int. Symp. 1996, 79-92.
Properties: Colorless, odorless crystals, mp 97.2-101.7°. Vapor pressure at 20°: 2.3 ′ 10-8 mbar. Soly at 20° (mg/l): 2 water. log P at 25° (n-octanol/water, pH 7): 3.4. LD50 in rats (mg/kg): >5000 orally; >2000 dermally (Ammerman).
Melting point: mp 97.2-101.7°
Log P: log P at 25° (n-octanol/water, pH 7): 3.4
Toxicity data: LD50 in rats (mg/kg): >5000 orally; >2000 dermally (Ammerman)
Use: Agricultural fungicide.