17109-49-8 Usage
Uses
Different sources of media describe the Uses of 17109-49-8 differently. You can refer to the following data:
1. Fungicide.
2. Edifenphos is a foliar applied contact fungicide that provides both
protective and curative control of rice blast diseases caused by Pyricularia
oryzae. It also controls ear blight and stem rot in rice.
Definition
ChEBI: An organic thiophosphate that is the O-ethyl-S,S-diphenyl ester of phosphorodithioic acid. Used to control a variety of fungal diseases on rice including blast, ear blight and stem rot. Edifenphos i
moderately toxic to mammals and fish but poses more of a risk to aquatic invertebrates.
Metabolic pathway
Hydrolytic cleavage of the P-0 and P-S linkages affords the major
degradation and metabolic pathways of edifenphos. A unique transesterification
reaction yielded tri-S-phenyl and di-O-ethyl phosphorus
esters as minor products in soil and plant test systems (Scheme 1).
Degradation
The hydrolytic DT50 values of edifenphos (1) at pH 7 and 9 at 25 °C
were 19 and 2 days, respectively (PM). [35S]Edifenphods egraded rapidly
in aqueous solution when exposed to UV light at 25-28 °C [DT50 ca. 3 days
(light exposed) vs. 19 days (dark control)]. Cleavage of the P-S linkage is
the primary degradation pathway. Thiophenol (2) was further oxidised
to form diphenyl disulfide (3), possibly during sample extraction, isolation
and analysis. Stepwise cleavage of the P-S and P-O linkages yielded
O-ethyl S-phenyl hydrogen phosphorothioate (4), S-phenyl dihydrogen
phosphorothioate (5), benezenesulfonic acid (6) and sulfuric acid as
major 35S-containing products, whereas O-ethyl dihydrogen phosphate
(7) and phosphoric acid were recovered from the phosphorus portion of
the molecule (Murai, 1977).
Toxicity evaluation
Edifenphos shows no delayed neuropathic symptoms.
Safety intervals between spray and harvest for rice are
21 days in Japan with 0.2 mg of MRL (Maximum Residue
Limit).
Check Digit Verification of cas no
The CAS Registry Mumber 17109-49-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,1,0 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 17109-49:
(7*1)+(6*7)+(5*1)+(4*0)+(3*9)+(2*4)+(1*9)=98
98 % 10 = 8
So 17109-49-8 is a valid CAS Registry Number.
InChI:InChI=1/C14H15O2PS2/c1-2-16-17(15,18-13-9-5-3-6-10-13)19-14-11-7-4-8-12-14/h3-12H,2H2,1H3
17109-49-8Relevant articles and documents
Synergistic Combinations Of Active Ingredients
-
, (2012/02/15)
The present invention relates to novel active compound combinations comprising, firstly, at least one known compound of the formula (I) in which R1 and A have the meanings given in the description and, secondly, at least one further known active compound from groups (2) to (27) listed in the description, which combinations are highly suitable for controlling animal pests such as insects and unwanted acarids and also phytopathogenic fungi.
Optically active 2,5-bisaryl-delta1-pyrrolines and their use as pest control agents
-
, (2008/06/13)
Novel optically active Δ1-pyrrolines of the formula (I) in which R1, R2, R1, R4, and m are each as defined in the description, a plurality of the processes for preparing these substances and their use for controlling pests.
Delta 1-pyrrolines used as pesticides
-
, (2008/06/13)
Novel Δ1-pyrrolines of the formula (I) in which R1, R2, R3, m and Q have the meanings given in the description, a plurality of processes for preparing these substances and their use for controlling pests.
