Chemical name:(R)-2-[4 -(4-cyano-2-fluorophenoxy) phenoxy]-Butyl Propionate
Other names:Cyhalofop-butyl
Molecular Formula:C20H20FNO4
Structural formula:
CAS No.:122008-85-9
EN No.:601-817-0
Productintroduction: Content ratio:>98%
Package standard:25KG/bag,25KG/drum
Packaging Certificate for Dangerous Goods Info.:
Goods category:9UN
No.:3077 package
level:3
Goods condition: Solid
Package category | Packaging | Package standard | Unit gross weight | Unit pure wight |
Bag | Paper plastic composite bag | 55x85cm | 25.2kg | 25kg |
Drum | Fiber drum | Diameter36x50cm | 27.8kg | 25kg |
Physical and chemical properties: the technical drug is white like, with specific gravity of 1.2375(20 ℃).boiling point of 363 ℃, melting point of 48-49.C, vapor pressure of1.2x10-3MPa(20℃) soluble in most organic solvents:acetonitrile 57.3%. methanol 37.3%,acetone60.7%,chloroform59.4%.insoluble in water
Action characteristics:it is the only aromatic phenoxypropionic acid herbicide with high safety to rice.Like other varieties of this kind,it is also an internal absorption and conductive herbicide.lt is absorbed by the leaves and sheaths of plants.and transmitted by phloem.lt accumulates in the meristem region of plants,resists acetyl CoA carboxylase (ACCase),stops the synthesis of fatty acids,stops the growth and division of cells, destroys lipid-containing structures such as membrane system,and finally causes plant death. it takes 1-3 weeks for cyhalofop-butyl to be absorbed to weed death.The symptoms of weeds after application are as follows: the tender buds at the four leaf stage wither, leading to death.At the second leaf stage,the old leaves changed little and kept green it has high safety to rice.Because of its rapid degradation in soil and typical paddy water,it is safe for subsequent crops
Application: mainly used to control important gramineous weeds.Cyhalofop-butyl is not only highly effective against Euphorbia chinensis and all kinds of barnyardgrass (including older barnyardgrass).but also can be used to control,Digitaria Sanguinalis. paspalum bicolor, Setaria Setaria.Achyranthes sinense and Agropyron aestivum.lt has no effect on Cyperaceae weeds and broad-leaved weeds
Cyhalofop-butyl is an oxyphenoxypropionic acid type herbicide. It is mainly used in rice seedling field, direct seeding field and transplanting field to control most malignant gramineous weeds such as barnyardgrass, Qianjin and niujin grass, and can effectively control weeds resistant to dichloroquinolinic acid, sulfonylurea and amide herbicides. It has the characteristics of high efficiency, low toxicity and low residue.
IUPAC
butyl (2R)-2-[4-(4-cyano-2-fluorophenoxy)phenoxy]propanoate
SMILES
CCCCOC(=O)C(C)OC1=CC=C(C=C1)OC2=C(C=C(C=C2)C#N)F