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Edifenphos

Product Name
Edifenphos
CAS No.
17109-49-8
Chemical Name
Edifenphos
Synonyms
EDDP;Lutrol;EDIFEN;EDISAN;VIHINO;sra7847;HINOSAN;Blastoff;bay78418;SRA 7847
CBNumber
CB5702406
Molecular Formula
C14H15O2PS2
Formula Weight
310.37
MOL File
17109-49-8.mol
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Edifenphos Property

Melting point:
25°C
Boiling point:
bp0.01 154°
Density 
d420 1.23
vapor pressure 
1.3 x 10-2Pa (20 °C)
refractive index 
nD22 1.61
storage temp. 
0-6°C
Water Solubility 
56 mg l-1 (20 °C)
form 
liquid
Merck 
13,3547
BRN 
1988797
CAS DataBase Reference
17109-49-8(CAS DataBase Reference)
NIST Chemistry Reference
Phosphorodithioic acid, o-ethyl s,s-diphenyl ester(17109-49-8)
EPA Substance Registry System
Edifenphos (17109-49-8)
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Safety

Hazard Codes 
T,N
Risk Statements 
21-23/25-43-50/53-24/25-23
Safety Statements 
36/37-45-60-61
RIDADR 
UN 2810
WGK Germany 
3
RTECS 
TE3850000
HazardClass 
6.1(b)
PackingGroup 
III
Hazardous Substances Data
17109-49-8(Hazardous Substances Data)
Toxicity
LD50 in female, male rats (mg/kg): 25.5, 66.5 i.p. (Chen)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H317May cause an allergic skin reaction

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
45467
Product name
Edifenphos
Purity
PESTANAL
Packaging
250mg
Price
$57.7
Updated
2024/03/01
TRC
Product number
E335200
Product name
Edifenphos
Packaging
1g
Price
$140
Updated
2021/12/16
Usbiological
Product number
470678
Product name
EDDP
Packaging
1mg
Price
$566
Updated
2021/12/16
Usbiological
Product number
352012
Product name
EDDP
Packaging
1mg
Price
$709
Updated
2021/12/16
Usbiological
Product number
470677
Product name
EDDP
Packaging
1mg
Price
$731
Updated
2021/12/16
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Edifenphos Chemical Properties,Usage,Production

Uses

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.

Uses

Fungicide.

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).

Edifenphos Preparation Products And Raw materials

Raw materials

Preparation Products

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Edifenphos Suppliers

Aladdin Scientific
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+1-+1(833)-552-7181
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sales@aladdinsci.com
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United States
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United States Biological
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AccuStandard Inc
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Waterstone Technology, LLC
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AlliChem, LLC
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Cambridge Isotope Laboratories, Inc.
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2A PharmaChem USA
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3B Scientific Corporation
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APAC Pharmaceutical, LLC
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BOSCHE SCIENTIFIC, LLC
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Beta Pharma, Inc.
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ChemPacific Corporation
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Crescent Chemical Co., Inc.
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17109-49-8, EdifenphosRelated Search:


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