Produit Nom:Hexaconazole 5% EC

CAS No.: 79983-71-4

Description: 

Hexaconazole

Fungicide

FRAC  3; DMI: triazole

NOMENCLATURE

Common name hexaconazole (BSI, ANSI, draft E-ISO, (m) draft F-ISO)

IUPAC name (RS)-2-(2,4-dichlorophenyl)-1-(1H-1,2,4-triazol-1-yl)hexan-2-ol 

Chemical Abstracts name (?-a-butyl-a-(2,4-dichlorophenyl)-1H-1,2,4-triazole-1-ethanol 

CAS RN [79983-71-4]

PHYSICAL CHEMISTRY

Composition Tech. is >85% pure.

Mol. wt. 314.2

M.f. C14H17Cl2N3O

Form White, crystalline solid.

M.p. 110-112 ºC

V.p. 0.018 mPa (20 ºC)

KOW logP = 3.9 (20 ºC)

Henry 3.33 ´ 10-4 Pa m3 mol-1 (calc.)

S.g./density 1.29 g/cm3 (25 ºC)

Solubility In water 0.017 g/l (20 ºC). In dichloromethane 336, methanol 246, acetone 164, ethyl acetate 120, toluene 59, hexane 0.8 (all in g/l, 20 ºC).

Stability Stable for at least 6 years at ambient temperatures. Stable to hydrolysis and photolysis in water. Formulations stable in sales containers for 6 months at 50 ºC, and 2 years at ambient temperature. 

APPLICATIONS

Biochemistry Inhibits ergosterol biosynthesis (steroid demethylation inhibitor).

Mode of action Systemic fungicide with protective and curative action.

Uses Control of many fungi, particularly Ascomycetes and Basidiomycetes, e.g. Podosphaera leucotricha and Venturia inaequalis on apples, Guignardia bidwellii and Uncinula necator on vines, Hemileia vastatrix on coffee, and Cercospora spp. on peanuts, at 15-250 g/ha. Also used on bananas, cucurbits, peppers and other crops.

Phytotoxicity Non-phytotoxic when used as directed. Some injury noted on McIntosh apples.