Title: Cyprodinil
CAS Registry Number: 121552-61-2
CAS Name: 4-Cyclopropyl-6-methyl-
N-phenyl-2-pyrimidinamine
Synonyms: N-(4-cyclopropyl-6-methylpyrimidin-2-yl)aniline; 2-phenylamino-4-methyl-6-cyclopropylpyrimidine
Manufacturers' Codes: CGA-219417
Trademarks: Chorus (Syngenta); Unix (Syngenta); Vangard (Syngenta)
Molecular Formula: C14H15N3
Molecular Weight: 225.29
Percent Composition: C 74.64%, H 6.71%, N 18.65%
Literature References: Methionine biosynthesis inhibitor. Prepn: A. Hubele,
EP 310550;
idem, US 5153200 (1989, 1992 both to Ciba-Geigy). Comprehensive description: U. J. Heye
et al., Crop Prot. 13, 541-549 (1994). Mechanism of action: P. Masner
et al., Pestic. Sci. 42, 163 (1994). Review of field trials: N. J. Leadbitter
et al., Br. Crop Prot. Counc. Monogr. 57, 73-78 (1994).
Properties: White crystalline solid, mp 75.9°. vapor pressure (25°): 5.1 ′ 10-4 Pa (crystal modif. A); 4.7 ′ 10-4 Pa (crystal modif. B). Log P (
n-octanol/water): 3.9 (pH 5.0); 4.0 (pH 7.0); 4.0 (pH 9.0). Soly in water at 25° (mg/l): 20 (pH 5.0); 13 (pH 7.0); 15 (pH 9.0). LD50 orally or dermally in rats: >2000 mg/kg (Heye).
Melting point: mp 75.9°
Log P: Log P (
n-octanol/water): 3.9 (pH 5.0); 4.0 (pH 7.0); 4.0 (pH 9.0)
Toxicity data: LD50 orally or dermally in rats: >2000 mg/kg (Heye)
Use: Agricultural fungicide.
