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fenitrothion

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Origin: China

Cas No: 122-14-5

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

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Product Description

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CAS No.: 122-14-5 Formula: C9H12NO5PS Molecular Weight: 277.23400

Description

Fenitrothion (IUPAC name: O,O-Dimethyl O-(3-methyl-4-nitrophenyl) phosphorothioate) is a phosphorothioate (organophosphate) insecticide; cheap and widely used worldwide.
In experiments fenitrothion at sublethal doses affected the motor movement of marsupials, and at acute dose levels it reduced the energy of birds.
In chronic (low) dose tests, unexpectedly only the lowest concentration (0.011 microgram/liter) of fenitrothion depressed the growth of an algae, though all of the chronic dose levels used were toxic in other ways to the algae.
Just half of fenitrothion's minimally effective dose altered the thyroid structure of a freshwater murrel (the snakehead fish).
In an unusual demonstration of resistance to pesticides, 8% of insects in farm fields were found to carry a symbiotic gut microbe that can metabolize and detoxify fenitrothion; after in-vitro tests showed that the microbe significantly increased the survival of fenitrothion-treated insects.

Basic Info

Chemical Name	fenitrothion
Synonyms	s5660; cytel; s112a; Cyten; methylnitrophos; Fenitrothion; O,O-dimethyl O-(3-methyl-4-nitrophenyl) phosphorothioate; Dybar; Macbar; MEP; Cyfen; O,O-dimethyl O-4-nitro-m-tolyl phosphorothioate; oms43; 8057hc;
CAS No.	122-14-5
Molecular Formula	C9H12NO5PS
Molecular Weight	277.23400
PSA	115.41000
LogP	3.97310

Properties

Appearance & Physical State	Brownish-yellow oil
Density	1.3227
Boiling Point	140-145ºC (0.05 torr)
Melting Point	3.4ºC
Flash Point	165.2ºC
Refractive Index	1.552
Water Solubility	0.003 g/100 mL
Storage Condition	APPROX 4ºC
Vapor Pressure	0mmHg at 25°C

Safety Info

RTECS	TG0350000
Hazard Class	6.1(b)
Safety Statements	S2-S60-S61
HS Code	2920190090
Packing Group	III
RIDADR	UN 3018
Risk Statements	R22; R50/53
Hazard Codes	Xn

Synthesis Route

4-nitro-m-cresol+chloro-dimethoxy-sulfanylidene-λ<sup>5</sup>-phosphane→fenitrothion
4-nitro-m-cresol→fenitrothion

Toxicity

Exposure Route	Type of Test	Species Observed	Dose/Duration	Toxic Effects
Oral	TDLo - Lowest published toxic dose	Human - woman	800 mg/kg	1.Gastrointestinal-hypermotility, diarrhea 2.Gastrointestinal-nausea or vomiting 3.Lungs, Thorax, or Respiration-dyspnea
Oral	LDLo - Lowest published lethal dose	Human - man	429 uL/kg	1.Behavioral-coma 2.Lungs, Thorax, or Respiration-respiratory depression 3.Gastrointestinal-other changes
Oral	LD50 - Lethal dose, 50 percent kill	Rodent - rat	250 mg/kg	1.Details of toxic effects not reported other than lethal dose value