38527-91-2

Basic information

• Product Name: PROTHIOFOS OXON
• Synonyms: etafos;etaphos;ethaphos;phosphorothioicacid,o-(2,4-dichlorophenyl)o-ethyls-propylester;tokuthionoxon;PROTHIOFOS OXON;PROTHIOFOS OXON STANDARD;Thiophosphoric acid O-(2,4-dichlorophenyl)O-ethyl S-propyl ester
• CAS NO: 38527-91-2
• Molecular Formula: C₁₁H₁₅Cl₂O₃PS
• Molecular Weight: 329.18
• Mol File: 38527-91-2.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 389.2°Cat760mmHg
• Flash Point: 189.2°C
• Appearance: /
• Density: 1.328g/cm³
• Vapor Pressure: 6.48E-06mmHg at 25°C
• Refractive Index: 1.54
• Storage Temp.: 4°C
• Solubility: Chloroform (Slightly), Methanol (Slightly)
• CAS DataBase Reference: PROTHIOFOS OXON(CAS DataBase Reference)
• NIST Chemistry Reference: PROTHIOFOS OXON(38527-91-2)
• EPA Substance Registry System: PROTHIOFOS OXON(38527-91-2)

Safety Data

• Hazardous Substances Data: 38527-91-2(Hazardous Substances Data)

Usage

Uses

Different sources of media describe the Uses of 38527-91-2 differently. You can refer to the following data:
1. Agricultural chemical.
2. Etaphos is an organophosphorus pesticide.

Hazard

A poison by ingestion.

Safety Profile

A poison by ingestion. Low toxicity by inhalation. When heated to decomposition it emits toxic vapors of POx, SOx, and Cl-.

InChI:InChI=1/C11H15Cl2O3PS/c1-3-7-18-17(14,15-4-2)16-11-6-5-9(12)8-10(11)13/h5-6,8H,3-4,7H2,1-2H3

Upstream product

• 64-17-5 ethanol 
• 34643-46-4 prothiophos 
• 106-94-5 propyl bromide 

Downstream Products

• 23823-54-3 Thiophosphoric acid O-(2,4-dichloro-phenyl) ester S,O'-diethyl ester 

Relevant articles and documents

Photolysis, oxidation, and hydrolysis of 14C-ethyl prothiofos [O-(2, 4-dichlorophenyl) O-ethyl S-propyl phosphorodithioate]

The chemical stability of the widely used organophosphorus insecticide 14C-prothiofos was studied. For this study prothiofos insecticide and some of its degradation products have been prepared. The oxon of the parent compound was obtained through the oxidation of the insecticide with various oxidizing agents, where yields depended on the type and nature of oxidizing agent. The effect of ultraviolet light and direct sunlight on prothiofos were investigated. Exposure to direct sunlight caused gradual degradation of prothiofos giving the same products as UV irradiation.The hydrolysis of 14C-prothiofos at pH 5, 7, 8, and 9 in buffered aqueous media at 25C, 40C and 55C was studied. The results indicated that prothiofos was stable in acid medium, but it was hydrolyzed to 2,4-dichlorophenol and O-ethyl S-propyl phosphorodithioate in alkaline medium.The degradation products identified by TLC and GC/MS were prothiofos oxon, O-ethyl S-propyl phosphordithioate, des-propyl thioprothiofos, prothiofos oxon sulfoxide, and one unknown compound in addition to the parent compound. The phenolic compound was identified by GC/MS and by its color.Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file. Copyright Taylor & Francis Group, LLC.

Biocidal macroemulsions containing polyvinyl alcohol

The present invention relates to new macroemulsions which contain 0.001 to 60 percent by weight of at least one active compound from the class comprising the phosphates and/or carbamates, 0 to 50 percent by weight of aromatic diluents, 0.001 to 20 percent by weight of polyvinyl alcohol having a mean molecular weight of between 5,000 and 150,000 and a content of acetate groups of between 2 and 30 mol %, and/or 0.001 to 20 percent by weight of a nonlphenol/propylene oxide/ethylene oxide adduct of the formula STR1 in which X represents integers from 10 to 50 and Y represents integers from 15 to 65, and/or 0.001 to 20 percent by weight of ethylene oxide/propylene oxide/ethylene oxide block copolymers having a mean molecular weight of between 2,000 and 8,000 and HLB values of between 8 and 30, and water and, if appropriate, additives, and in which the oil phase is dispersed in the aqueous phase in the form of droplets having a mean particle diameter of 0.1 to 3.0 μm.

O-ethyl-S-N-propyl-O-(substituted pheny)-phosphorothiolates

O-ethyl-S-n-propyl-O-(substituted phenyl)-phosphorothiolates of the general formula SPC1 Wherein X is halogen, lower alkyl, nitro, cyano, lower alkylmercapto, lower alkylsulfinyl, lower alkoxycarbonyl or lower alkyl carbonyl, and m is 1, 2 or 3, Which pos