13457-18-6 Usage
Description
PYRAZOPHOS is a pyrazolopyrimidine fungicide that serves as an effective control agent against various fungal diseases. It is the ethyl ester of 2-[(diethoxyphosphorothioyl)oxy]-5-methylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid, characterized by its systemic properties that provide both protective and curative actions.
Used in Agriculture:
PYRAZOPHOS is used as a systemic fungicide for the control of various fungal diseases in different crops. It is particularly effective against powdery mildew (Podosphaera) on apples, stone fruits, bush fruits, and strawberries. Additionally, it is used to control Erysiphe in cucurbits and tomatoes, Uncinula on vines, and leaf blotch (Rhynchosporium) in cereals.
Used in Pesticide Application:
PYRAZOPHOS is also utilized as an anticholinesterase pesticide on fruits and vegetables. Its presence can be determined through gas chromatography/mass spectrometry and liquid chromatography with fluorescence detection, ensuring the safety and quality of the produce.
Metabolic pathway
Limited information is available to describe the degradation and metabolic
fate of pyrazophos. Hydrolytic cleavage of the P-O-pyrazolopyrimidine
linkage is the primary metabolic pathway. Oxidative
desulfuration of pyrazophos to pyrazophos-oxon is only a minor
pathway, observed in the plant metabolism study (Scheme 1).
Metabolism
Its mode of action is believed to be the inhibition of
melanin biosynthesis and the development of appressoria
by fungal conidia. Formulation is available as emulsifiable
concentrate (EC: 30%). Application rates on Oidium spp.
are in the range of 15–30 g a.i./hl.
Degradation
Pyrazophos (1) is hydrolysed in acidic or alkaline solution (PM).
Check Digit Verification of cas no
The CAS Registry Mumber 13457-18-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,5 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 13457-18:
(7*1)+(6*3)+(5*4)+(4*5)+(3*7)+(2*1)+(1*8)=96
96 % 10 = 6
So 13457-18-6 is a valid CAS Registry Number.
InChI:InChI=1/C14H20N3O5PS/c1-5-19-14(18)11-9-17-12(15-10(11)4)8-13(16-17)22-23(24,20-6-2)21-7-3/h8-9H,5-7H2,1-4H3
13457-18-6Relevant articles and documents
Substituted imide derivatives
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, (2008/06/13)
The present invention relates to novel substituted imide derivatives of the general formula (I) in which R1 represents optionally substituted cycloalkyl, R2 represents optionally substituted alkyl or optionally substituted cycloalkyl, R3 represents alkyl, alkoxy, alkylthio, amino, alkylamino or dialkylamino and R4 represents cyano or nitro, and to processes for their preparation and to their use for controlling animal pests and as herbicides.
Composition for controlling harmful bio-organisms and method for controlling harmful bio-organisms using the same
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, (2008/06/13)
A composition for controlling harmful bio-organisms comprising (a) at least one imidazole compound represented by formula (I): wherein R represents a lower alkyl group or a lower alkoxy group; and n represents an integer of 1 to 5, as an active ingredient, and (b) at least one inorganic phosphorus compound and/or at least one fungicide for Phycomycetes as an active ingredient or (c) a spreader as an activity-enhancing ingredient, and a method for controlling harmful bio-organisms comprising applying the composition for controlling harmful bio-organisms onto harmful bio-organisms.
Iminoacetic acid amides and their use as pest control agents
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, (2008/06/13)
PCT No. PCT/EP96/04345 Sec. 371 Date Apr. 15, 1998 Sec. 102(e) Date Apr. 15, 1998 PCT Filed Oct. 7, 1996 PCT Pub. No. WO97/14673 PCT Pub. Date Apr. 24, 1997Iminoacetamides of the formula (I) in which A represents a single bond or optionally substituted alkylene, Q represents oxygen or sulphur, R1 represents respectively optionally substituted cycloalkyl, cycloalkenyl, aryl or heterocyclyl, R2 represents respectively optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkenyl, aryl or heterocyclyl, R3 represents hydrogen or respectively optionally substituted alkyl, alkenyl, alkinyl or cycloalkyl, R4 represents respectively optionally substituted cycloalkyl, cycloalkenyl, aryl or heterocyclcyl a process for their preparation, pesticidal compositions containing them, and their use for controlling pests.