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Chemical Identification
Common Name
Orysastrobin
中文通用名
肟醚菌胺
IUPAC
(2E)-2-(methoxyimino)-2-{2-[(3E,5E,6E)-5-(methoxyimino)-4,6-dimethyl-2,8-dioxa-3,7-diazanona-3,6-dien-1-yl]phenyl}-N-methylacetamide
CAS
E)-α-(methoxyimino)-2-[(3E,5E,6E)-5-(methoxyimino)-4,6-dimethyl-2,8-dioxa-3,7-diaza-3,6-nonadienyl]-N-methylbenzeneacetamide
CAS No.
248593-16-0
Molecular Formula
C18H25N5O5
Molecular Structure
Category
Activity
A rice fungicide that is highly effective control of leaf and panicle blast (Magnaporthe grisea) and sheath blight  (Thanatephorus cucumeris) in rice. It was discovered and developed by BASF. Its biochemical mode of action is the inhibition of the mitochondrial respiration chain by binding to the cytochrome bc1 complex at the Qo site. Orysastrobin shows an excellent plant selectivity in all tested rice varieties and is root systemic with an acropetal translocation. The active ingredient is formulated in granules with optimised release patterns, suitable for either seedling box or field applications. Orysastrobin provides an outstanding, consistent, and season-long efficacy against leaf- and panicle blast and sheath blight under different environmental conditions
CropUse
Rice.
For seedling box applications, orysastrobin will be registered with 700 g a.i./ha in combination with insecticides and for field application as a solo-compound with 660 to 990 g a.i./ha.
Disease Spectrum
Magnaporthe oryzae, Pyricularia oryzae, Thanatephorus cucumeris and Rhizoctonia solani
Formulation
GR = Granule
Physical Properties
Molecular weight:391.43g/mol; Melting point:99℃.Solubility in water:80.6g/l at 20℃
Transport Information
Hazard Class:O (Obsolete as pesticide, not classified)

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