Description History Toxicity Effects
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Fenitrothion

Description History Toxicity Effects
Product Name
Fenitrothion
CAS No.
122-14-5
Chemical Name
Fenitrothion
Synonyms
MEP;Dybar;Fenitrotion;Cyten;oms43;s112a;s5660;Cyfen;cytel;8057hc
CBNumber
CB5406210
Molecular Formula
C9H12NO5PS
Formula Weight
277.23
MOL File
122-14-5.mol
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Fenitrothion Property

Melting point:
3.4°C
Boiling point:
140-145°C (0.05 torr)
Density 
1.3227
vapor pressure 
1.5 x 10-2 Pa (20 °C)
refractive index 
nD25 1.5528
Flash point:
>100 °C
storage temp. 
APPROX 4°C
solubility 
Chloroform (Soluble), Methanol (Soluble)
form 
Liquid
Specific Gravity
1.328 (20℃)
color 
Light yellow to yellow
Water Solubility 
0.003 g/100 mL
Merck 
13,4003
BRN 
8983553
LogP
3.319 at 25℃
CAS DataBase Reference
122-14-5(CAS DataBase Reference)
NIST Chemistry Reference
Fenitrothion(122-14-5)
EPA Substance Registry System
Fenitrothion (122-14-5)
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Safety

Hazard Codes 
Xn;N,N,Xn,T,F,T+
Risk Statements 
22-50/53-23-21/22-67-65-38-11-26
Safety Statements 
2-60-61-45-36/37-62-28-16
RIDADR 
3018
WGK Germany 
3
RTECS 
TG0350000
HazardClass 
6.1(b)
PackingGroup 
III
HS Code 
29201900
Hazardous Substances Data
122-14-5(Hazardous Substances Data)
Toxicity
LD50 orally in rats: 250 mg/kg (Schrader)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

H312Harmful in contact with skin

H330Fatal if inhaled

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

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

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
45487
Product name
Fenitrothion
Purity
PESTANAL
Packaging
250mg
Price
$97.5
Updated
2024/03/01
TRC
Product number
F247850
Product name
Fenitrothion
Packaging
10g
Price
$945
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
PST0000163
Product name
FENITROTHION
Purity
95.00%
Packaging
10G
Price
$2055.9
Updated
2021/12/16
ChemScene
Product number
CS-0013949
Product name
Fenitrothion
Purity
≥97.0%
Packaging
100mg
Price
$70
Updated
2021/12/16
ChemScene
Product number
CS-0013949
Product name
Fenitrothion
Purity
≥97.0%
Packaging
250mg
Price
$100
Updated
2021/12/16
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Fenitrothion Chemical Properties,Usage,Production

Description

Fenitrothion is a selective acaricide and contact insecticide of low ovicidal properties. It is a brown to yellow liquid with a characteristic odour. Fenitrothion belongs to the organophosphate family of insecticides. It acts by inhibiting cholinesterase, thus it is an effective pesticide against a wide range of pests such as chewing, penetrating, and sucking insect pests. These pests include locusts, coffee leaf miners, wheat bugs, rice stem borers, grain weevils, and grain beetles on orchard fruits, cereals, cotton, forests, and vegetables. Fenitrothion is also an effective household insecticide as well as vector control agent for malaria.

History

Both Bayer Leverkusen and Sumitomo Chemical Company introduced Fenitrothion in 1959. Fenitrothion has minimal toxicity as compared to parathion, albeit with a range of insecticidal activity that is very similar. Fenitrothion is marketed in emulsifiable concentrate, dust, fogging concentrate, flowable, wettable powder formulations, and oil-based liquid spray.

Toxicity Effects

Acute Toxicity
Fenitrothion has acute toxicity to mammals, which is normally considered to be low. However, tests done on rats with doses considerably higher than those of applied for parathion reveal typical symptoms of acute poisoning. It also reduced the energy of birds in acute doses. Acute toxicity reported for a human female was a TDIo of 800 mg/kg.
Chronic Toxicity
In humans, chronic symptoms include fatigue, general malaise, headache, anorexia, and loss of memory, thirst, cramps, loss of weight, tremors, and muscular weakness. Half of the fenitrothion minimally effective dose changed the thyroid structure of a freshwater murrel.

Description

Fenitrothion is a volatile brownish-yellow oil.Molecular weight=277.25; Boiling point=(decomposes)at 140C; Freezing/Melting point=0.28C; Vapor pressure=5.3 3 10 2=mbar at 20C; Flash point=157C. HazardIdentification (based on NFPA-704 M Rating System):Health 3, Flammability 1, Reactivity 0. Insoluble in water.

Chemical Properties

Clear Yellow Oil

Chemical Properties

Pure fenitrothion is a yellowish brown liquid with an unpleasant odor. It is insoluble in water, but readily soluble in common organic solvents, such as acetone, alcohol, benzene, chlorinated hydrocarbons, dichloromethane, 2-propanol, toluene, in ethers, methanol, and xylene. It decomposes explosively. Fenitrothion is a contact insecticide and a selective acaricide of low ovicidal properties. Fenitrothion is effective against a wide range of pests, namely, penetrating, chewing, and sucking insect pests (coffee leaf-miners, locusts, rice stem borers, wheat bugs, fl our beetles, grain beetles, grain weevils) on cereals, cotton, orchard fruits, rice, vegetables, and forests. It may also be used as a fl y, mosquito, and cockroach residual contact spray for farms and public health programs. Fenitrothion is also effective against household insects and all nuisance insects. WHO confi rmed its effectiveness as a vector control agent for malaria. It is extensively used in other countries, including Japan, where parathion has been banned. Occupational workers are exposed to fenitrothion during mixing, loading/transportation, and fi eld applications.

Chemical Properties

Fenitrothion is a volatile brownish-yellow oil.

Uses

Insecticide.

Uses

Fenitrothion is used to control sucking, chewing and boring insects in cereals, soft fruit, tropical fruit, vines, sugar cane, vegetables, turf and forestry. It is also used as a public health insecticide for the control of flies, cockroaches and mosquitoes. Other uses are for the control of stored product pests and locusts.

Definition

ChEBI: An organic thiophosphate that is O,O-dimethyl O-phenyl phosphorothioate substituted by a methyl group at position 3 and a nitro group at position 4.

General Description

Brownish-yellow oil. Used as a selective acaricide and a contact and stomach insecticide against chewing and sucking insects on rice, orchard fruits, vegetables, cereals, cotton and forest. Also used against flies, mosquitoes, and cockroaches.

Reactivity Profile

Organophosphates, such as Fenitrothion, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.

Hazard

Cholinesterase inhibitor, use may be restricted.

Health Hazard

Fenitrothion is toxic to animals and humans. After prolonged periods of exposures to high concentrations of fenitrothion, occupational workers show poisoning. The symptoms include, but are not limited to, general malaise, fatigue, headache, loss of memory and ability to concentrate, anorexia, nausea, thirst, loss of weight, cramps, muscular weakness, and tremors, and at suffi ciently high dosage produce typical cholinergic poisoning. The formulation product, sumithion 50EC, causes delayed neurotoxicity in adult rats, as well as humans.

Health Hazard

Fenitrothion is an organophosphate insecticide. It is a highly toxic cholinesterase inhibitor, that acts on the nervous system. Does not cause delayed neurotoxicity and contact produces little irritation.

Fire Hazard

When heated to decomposition, Fenitrothion emits very toxic fumes of oxides of nitrogen, phosphorus and sulfur. Decomposition at 212-284F produces a mixture of organophosphorus polymers. Unstable in alkaline media. Stable for 2 years if stored at 68-77F. Do not store above 104F.

Flammability and Explosibility

Not classified

Agricultural Uses

Insecticide, Acaracide: Not approved for use in EU countries. Registered for use in the U.S. This is a selective acaricide and a contact and stomach insecticide. Fenitrothion is a contact insecticide and selective acaricide of low ovicidal properties. It is considered an acetylcholinesterase inhibitor. Fenitrothion is effective against a wide range of pests, i.e. penetrating, chewing and sucking insect pests (coffee leafminers, locusts, rice stem borers, wheat bugs, flour beetles, grain beetles, grain weevils) on cereals, cotton, orchard fruits, rice, vegetables, and forests. It may also be used as a fly, mosquito, and cockroach residual contact spray for farms and public health programs. Fenitrothion is also effective against household insects and all of the nuisance insects listed by the World Health Organization. Its effectiveness as a vector control agent for malaria is confirmed by the World Health Organization. Fenitrothion is non-systemic, and non-persistent. Fenitrothion was introduced in 1959 by both Sumitomo Chemical Company and Bayer Leverkusen and later by American Cyanamid Company. Fenitrothion is far less toxic than parathion with a range of insecticidal activity that is very similar and is similar enough in structure to be produced in the same factories. The difference in precursor chemicals might make it somewhat more expensive, but it is heavily used in other countries, including Japan, where parathion has been banned. Fenitrothion comes in dust, emulsifiable concentrate, flowable, fogging concentrate, granules, ULV, oil-based liquid spray, and wettable powder formultaions. It is compatible with other neutral insecticides.

Trade name

ACCOTHION®; ACEOTHION®; AGRIA 1050®; AGRIYA 1050®; AGROTHION®; AMERICAN CYANAMID CL-47,300®; ARBOGAL®; BAY 41831®; BAYER 41831®; BAYER S 5660®; CEKUTROTHION®; CL 47300®; CP47114®; CYFEN®; CYTEL®; CYTEN®; DICATHION®; DICOFEN®; DYBAR®; EI 47300®; FALITHION®; FENITEX®; FENITOX®; FENSTAN®; FOLETHION®; FOLITHION®; H-35-F 87 (BVM)®; 8057HC®; KALEIT®; KEEN SUPERKILL ANT AND ROACH EXTERMINATOR®; KILLGERM TETRACIDE INSECTICIDAL SPRAY®; KOTION®; MEP (PESTICIDE)®; METATHION®; METATHIONE®; METATION®; MICROMITE®; MONSANTO CP 47114®; NITROPHOS®; NOVATHION®; NUVAND®; NUVANOL®; OLEOSUMIFENE®; OMS 43®; OVADOFOS®; PENNWALT C-4852; PESTROY®; S 112A®; S 5660®; SMT®; SUMITHION®[C]; TURBAIR GRAIN STORAGE INSECTICIDE®; VERTHION®

Safety Profile

Poison by ingestion, inhalation, intravenous, and intraperitoneal routes. Moderately toxic by skin contact, intratracheal, and subcutaneous routes. Human systemic effects: coma, diarrhea, dyspnea, gastrointestinal changes, hypermodtty, nausea or vomiting, respiratory depression. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx, POx, and sox

Potential Exposure

A potential danger to those involved in the manufacture, formulation, and application of this insecticide. It is a selective acaricide; and a contact and stomach insecticide. Used to control chewing and sucking insects on rice, orchard fruit; vegetables, cereals, cotton, and in forests. Also protects against flies, mosquitoes, and cockroaches

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Speed in removing material from skinis of extreme importance. Shampoo hair promptly if contaminated. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, beginrescue breathing (using universal precautions, includingresuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.Effects may be delayed. Keep victim under medicalobservation.

Metabolic pathway

Fenitrothion is a non-systemic insecticide, the biotransformations and environmental fate of which have been intensively studied and reviewed. Metabolism has been studied in mammals (including humans), birds, fish, crustacea, molluscs, insects, algae, plants and soil. The major routes of biotransformation involve desulfuration to the oxon analogue (fenitrooxon) and hydrolysis to give dimethyl phosphate, O,O-dimethyl phosphorothioate and 3-methyl-4-nitrophenol. Demethylation to give desmethylfenitrothion and its decomposition products, reduction of the nitro group and oxidation of the ring methyl group also occur. Demethylation via glutathione-S-methyl transferases in the liver is a particularly important mechanism in mammals. Reduction of the nitro group to an amino group is important in anaerobic soils and ruminants but this has also been shown to occur in rats, rabbits and humans where it is presumably carried out by bacteria in the gut. Oxidation of the 3-methyl group to hydroxymethyl and carboxylate has been shown to be a degradative route in birds. The major routes of phase II metabolism involve conjugation of 3-methyl-4-nitrophenol to the glucoside in plants and insects, to the sulfate ester in birds and the sulfate ester and glucuronide in mammals.

Metabolism

The main biotransformation routes involve oxidative desulfuration to the oxon and dearylation to give dimethyl hydrogen phosphate, O,O-dimethyl hydrogen phosphorothioate and 3-methyl-4-nitrophenol. Demethylation dependent on glutathion-S-alkyl transferase is particularly important in mammals.Oxidation of the 3-methyl group to hydroxymethyl and then carboxyl group is also a degradative route. Reduction of the nitro group to an amino group occurs in anaerobic soils and ruminants. The DT50 in soils under upland and submerged conditions were 12–28 and 4–20 d, respectively.

storage

Color Code—Blue: Health Hazard/Poison: Store ina secure poison location. Prior to working with this chemicalyou should be trained on its proper handling and storage.Prior to working with this chemical you should be trained onits proper handling and storage. Store in tightly closed containers in a cool, well-ventilated area away from oxidizers.Where possible, automatically pump liquid from drums orother storage containers to process containers.

Shipping

UN3017 Organophosphorus pesticides, liquid, toxic, flammable, flash point not ,23C, Hazard class: 6.1; Labels: 6.1-Poisonous materials, 3-Flammable liquid. UN2810 Toxic liquids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required

Toxicity evaluation

The acute oral LD50 values in mammals range from 330 mg/kg in rats to 1850 mg/kg in the guineapig. Inhalation LC50 (4 h) for rats is >1.2 mg/L air. NOEL (2 y) for rats and mice is 10 mg/kg diet (0.5 mg/kg/d). ADI is 5 μg/kg b.w.

Degradation

Fenitrothion is relatively stable to hydrolysis under normal conditions (PM). Mikami et al. (1985) reported the hydrolysis of fenitrothion between pH 5 and 10. Below pH 7 hydrolysis occurred by a pH-independent mechanism and above pH 9 by a base-catalysed process. At intermediate pH values both mechanisms were operative. The major mechanism below pH 8 was demethylation to give desmethylfenitrothion and above pH 9, cleavage of the P-O-aryl bond gave 3-methyl-4-nitrophenol.

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases,strong acids, oxoacids, epoxides. Strong oxidizers may cause release of toxic phosphorus oxides. Organophosphates, in the presence of strong reducing agents such as hydrides, may form highly toxic and flammable phosphine gas. Keep away from alkaline materials

Waste Disposal

Incineration (for large amounts); alkaline hydrolysis and landfill (for small amounts). In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.

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Fenitrothion Suppliers

Shandong Debek Bioengineering Co. LTD
Tel
13854830608; 13854830608
Email
13854830608@163.com
Country
China
ProdList
1447
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
TAIYUAN RHF CO.,LTD.
Tel
+86 351 7031519
Fax
+86 351 7031519
Email
sales@RHFChem.com
Country
China
ProdList
2338
Advantage
56
Capot Chemical Co., Ltd
Tel
+86 (0) 571 85 58 67 18
Fax
0086-571-85864795
Email
sales@capotchem.com
Country
China
ProdList
18207
Advantage
66
Pure Chemistry Scientific Inc.
Tel
001-857-928-2050 or 1-888-588-9418
Fax
001-617-206-9595
Email
sales@chemreagents.com
Country
United States
ProdList
10186
Advantage
62
Wuhan Wei Shunda Technology Development Co., Ltd.
Tel
86-027-88774375
Fax
86-027-88416321
Email
mwmwhot@163.com
Country
China
ProdList
233
Advantage
65
Chemsky(shanghai)International Co.,Ltd.
Tel
021-50135380
Email
shchemsky@sina.com
Country
China
ProdList
32321
Advantage
50
Syntechem Co.,Ltd
Tel
Fax
E-Mail Inquiry
Email
info@syntechem.com
Country
China
ProdList
12984
Advantage
57
Sichuan Kulinan Technology Co., Ltd
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11707
Advantage
57
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
22514
Advantage
55
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View Lastest Price from Fenitrothion manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Fenitrothion 122-14-5
Price
US $60.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000kg/week
Release date
2024-05-23
qingdao trust agri chemical co.,ltd
Product
fenitrothion 122-14-5
Price
US $0.00/kg
Min. Order
1kg
Purity
99
Supply Ability
20tons
Release date
2024-07-24
Shaanxi Dideu Medichem Co. Ltd
Product
Fenitrothion 122-14-5
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99.0%
Supply Ability
500 tons
Release date
2020-04-27

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