Pyridaphenthion

ChemicalBook > CAS DataBase List > Pyridaphenthion

Product Name: Pyridaphenthion
CAS No.: 119-12-0
Chemical Name: Pyridaphenthion
Synonyms: Ofun;Ofnak;ORESTE;Ofnack;OFUNACK;cl12503;CL 12503;AC-12503;ent23,968;ENT 23,968
CBNumber: CB2292780
Molecular Formula: C14H17N2O4PS
Formula Weight: 340.33
MOL File: 119-12-0.mol

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Pyridaphenthion Property

Melting point:: 54.5～56.5℃
Boiling point:: 416.2±28.0 °C(Predicted)
Density: 1.30±0.1 g/cm3(Predicted)
vapor pressure: 1.47×10^-6 Pa (20 °C)
Flash point:: -4 °C
storage temp.: APPROX 4°C
Water Solubility: 100mg l^-1 （20°C）
pka: -2.09±0.40(Predicted)
BRN: 302741
CAS DataBase Reference: 119-12-0(CAS DataBase Reference)
NIST Chemistry Reference: Phosphorothioic acid, o-(1,6-dihydro-6-oxo-1-phenyl-3-pyridazinyl) o,o-diethyl ester(119-12-0)
EPA Substance Registry System: Pyridaphenthion (119-12-0)

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Safety

Hazard Codes: F,Xi,N,Xn
Risk Statements: 11-36-66-67-57-51/53-20/22
Safety Statements: 26-61-33-16
RIDADR: 2783
WGK Germany: 3
RTECS: TF2275000
HazardClass: 6.1(a)
PackingGroup: II

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Precautionary statements

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

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 36895
Product name: Pyridaphenthion solution
Purity: 10?μg/mL in ethyl acetate, PESTANAL?, analytical standard
Packaging: 2ml
Price: $62
Updated: 2022/05/15

Sigma-Aldrich

Product number: 32538
Product name: Pyridaphenthion
Purity: PESTANAL?, analytical standard
Packaging: 100mg
Price: $126
Updated: 2022/05/15

AK Scientific

Product number: S535
Product name: Pyridaphenthion
Packaging: 100mg
Price: $189
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0290691
Product name: PYRIDAPHENTHION
Purity: 98.00%
Packaging: 2.5G
Price: $1265
Updated: 2021/12/16

AHH

Product number: MT-58329
Product name: Pyridaphenthion
Purity: 98%
Packaging: 2.5g
Price: $436
Updated: 2021/12/16

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Pyridaphenthion Chemical Properties,Usage,Production

Description

Pyridaphenthion is a pale yellow solid, mp 54.5–56 ?C, vp 0.00147 mPa (20 ?C). Solubility in water is 100 mg/L (20 ?C). It is very soluble in acetone, methanol, and diethyl ether. Log Kow = 3.2.

Uses

Pyridaphenthion is used to control a wide range of chewing and sucking insects and mites in rice, vegetables, fruit and ornamentals.

Definition

ChEBI: Pyridaphenthion is an organic thiophosphate, an organothiophosphate insecticide and a pyridazinone. It has a role as an EC 3.1.1.7 (acetylcholinesterase) inhibitor and an agrochemical. It is functionally related to a 6-hydroxy-2-phenylpyridazin-3-one.

Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion and skin contact. When heated to decomposition it emits very toxic fumes of SOx, POx, and NOx. Used to control chewing and suckmg insects on rice, fruits, vegetables, and cereals.

Metabolic pathway

Pyridaphentluon is photolytically transformed into the oxon and phenylmaleic hydrazide. In the mouse its metabolism involves oxidative dearylation, oxidative desulfuration to the oxon, de-ethylation and conjugation of phenylmaleic hydrazide produced as the ultimate product of stage I metabolism and is typical of many phosphorothioates. A marked difference between metabolism in mice and rats was shown, with rats excreting no desethylpyridaphenthion and excreting all of the phenyl-maleic hydrazide in an unconjugated form.

Metabolism

More than 70% of the dose administered to rats and mice was excreted within 24 h in the urine. The major metabolites excreted are phenylmaleic hydrazide and desethyl pyridafenthion-oxon. The half-life in soil is 11–24 d.

Degradation

The photolysis of pyridaphenthion on a glass slide irradiated with both short wavelength UV light and light of wavelength >300 nm was investigated by Tsao et al. (1989). Samples were irradiated for 48 hours at unrecorded light intensity as thin films spread on petri dishes or in solution in water, methanol or hexane under an oxygen atmosphere. The effects of photosensitisers was also assessed in the thin film experiments. The photoproducts were analysed by TLC, GC-MS and ¹H NMR spectroscopy. Under thin film conditions pyridaphenthion was photodegraded more quickly with light >300 nm than by 254 um light and was degraded faster as a thin film than in solution. The main photoproducts from the glass surface and aqueous solution were pyridaphenthion oxon (2) and phenylmaleic hydrazide (3) (Scheme 1); the only other products were small amounts of polymers. Photosensitisers accelerated photolysis markedly with the most effective being a plant-derived natural product, cis-dehydromatricaria ester. It is notable that a simple chemical oxidation using 3-chloroperoxybenzoic acid gave the same two products, 2 and 3.

Toxicity evaluation

The acute oral LD₅₀ for rats is 769–850 mg/kg. Inhalation LC50 (4 h) for rats is >1.13 mg/L air.

Pyridaphenthion Preparation Products And Raw materials

Raw materials

2-tert-Butyl-4,5-dichloro-3-2H-pyridazinone Maleic anhydride THIOPHOSPHORYL CHLORIDE

Preparation Products

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View Lastest Price from Pyridaphenthion manufacturers

Career Henan Chemical Co

Product: Pyridaphenthion 119-12-0
Price: US $1.00/KG
Min. Order: 1KG
Purity: 98%HPLC
Supply Ability: 10tons
Release date: 2020-01-20

119-12-0, PyridaphenthionRelated Search:

Pyridazine Diphenyl ether Diphenylthiocarbazide Clindamycin phosphate Phenyl salicylate PHENYL VALERATE Mefenpyr-diethyl Diethyl oxalate Ethylene glycol diethyl ether SULPHOSUCCINIC ACID ESTER Diethyl malonate Tris(2-chloroethyl) phosphate Celiprolol 3-HYDROXY-1-PHENYL-6-PYRIDAZONE O,O,O-TRIETHYLPHOSPHOROTHIOATE 3-HYDROXY-1-METHYLPYRIDAZIN-6(1H)-ONE Phenylacetic acid Diethyl ether

PYRIDAPHENTHION

OFUNACK

ORESTE

3(2H)-Pyridazinone, 6-hydroxy-2-phenyl-, O-ester with O,O-diethyl phosphorothioate

3(2h)-pyridazinone,6-hydroxy-2-phenyl-,o-esterwitho,o-diethylphosphoroth

American cyanamid 12,503

americancyanamid12,503

CL 12503

cl12503

DiethylO-(2,3-dihydro-3-oxo-2-phenyl-6-pyridazinyl)phosphorothioate

ENT 23,968

ent23,968

Ofunack(TM)

O-(1,6-dihydro-6-oxo-1-phenyl-3-pyridazinyl)O,O-diethylphosphorothioate

O-(1,6-Dihydro-6-oxo-1-phenylpyridazin-3-yl) O,O-diethyl phosphorothioate

o-(1,6-dihydro-6-oxo-1-phenylpyridazin-3-yl)o,o-diethylphosphorothioate

O,O-Diethyl O-(2,3-dihydro-3-oxo-2-phenyl-6-pyridazinyl)phosphorothioate

o,o-Diethyl o-(6-oxo-1-phenyl-1,6-dihydro-3-pyridazinyl) thiophosphate

o,o-diethylo-(2,3-dihydro-3-oxo-2-phenyl-6-pyridazinyl)phosphorothioate

O,O-Diethylphosphorothioate, O-ester with 6-hydroxy-2-phenyl-3(2H)-pyridazinone

o,o-diethylphosphorothioate,o-esterwith6-hydroxy-2-phenyl-3(2h)-pyridazino

Ofnack

Ofnak

Ofun

ofunack,e.c.(20%)

Phosphorothioic acid, O,O-diethyl ester, O-ester with 6-hydroxy-2-phenyl-3(2H)pyridazinone

Phosphorothioicacid,esters,O-(1,6-dihydro-6-oxo-1-phenyl-3-pyridazinyl)-O,O-diethylester

phosphorothioicacid,o,o-diethylester,o-esterwith6-hydroxy-2-phenyl-3(2h)p

Pyridafenthion

pyridiphenthion

yridazinone

O,O-diethyl O-(1,6-dihydro-6-oxo-1-phenylpyridazin-3-yl) thiophosphate

Pyridaphenthione

pyridaphenthio (jmaf)

O,O-Diethyl-O-(3-oxo-2-phenyldihydro-6-pyridazinyl)- phosphorodithionate

6-Diethoxyphosphinothioyloxy-2-phenylpyridazin-3-one

O-(1,6-Dihydro-6-oxo-1-phenyl-3-pyridazinyl)phosphorothioic acid O,O-diethyl ester

O,O-Diethyl-O-thiophosphat

Pyridafethion

O-(1,6-Dihydro-6-oxo-1-phenylpyridazin-3-yl)-O,O-diethylphosphorothionate

Pyridaphenthion solution

Pyridaphenthion E.C.(20%)

O，O-dietyl-O-(2,3-dihydro-3-oxo-2-phenyl-dazine-6-yl) phosphorothionate

Pyridaphenthion Solution, 100ppm

AC-12503

Phosphorothioic acid O-(1,6-dihydro-6-oxo-1-phenylpyridazin-3-yl) O,O-diethyl

Thiophosphoric acid O,O-diethyl-O-(6-oxo-1-phenyl-1,6-dihydropyridazin-3-yl) ester

6-diethoxythiophosphoryloxy-2-phenyl-pyridazin-3-one

Pyridahenthion

Pyridaphenthion 250mg [119-12-0]

Purity of Pyridaphenthione

O,O-diethyl O-(6-oxo-1-phenyl-1,6-dihydropyridazin-3-yl) phosphorothioate

PyridaphenthionSolution,100mg/L,1ml

Pyridaphenthion @100 μg/mL in MeOH

Pyridaphenthion@1000 μg/mL in Acetone

Phosphorothioic acid, O-(1,6-dihydro-6-oxo-1-phenyl-3-pyridazinyl) O,O-diethyl ester

PyridaphePyridaphenthionnthion

4'-Tetramethoxyflavone