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FORMOTHION

CAS No.
2540-82-1
Chemical Name:
FORMOTHION
Synonyms
p1;JC7;J-38;RPP1;NUCKS;Antio;s6900;Aflix;NUCKS1;S 6900
CBNumber:
CB0757865
Molecular Formula:
C6H12NO4PS2
Molecular Weight:
257.27
MDL Number:
MFCD00055528
MOL File:
2540-82-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-07-31 15:25:14

FORMOTHION Properties

Melting point 25.5℃
Boiling point 317.8±52.0 °C(Predicted)
Density 1.361 g/cm3 (20 ºC)
vapor pressure 1.13 x 10-4 Pa (20 °C)
refractive index 1.5541 (589.3 nm 20℃)
Flash point 25 °C
storage temp. 2-8°C
form solid
Water Solubility 2600 mg l-1(24 °C)
pka -1.79±0.70(Predicted)
biological source rabbit
BRN 5942199
Henry's Law Constant 9.0×104 mol/(m3Pa) at 25℃, HSDB (2015)
Major Application agriculture
InChI 1S/C6H12NO4PS2/c1-7(5-8)6(9)4-14-12(13,10-2)11-3/h5H,4H2,1-3H3
InChIKey AIKKULXCBHRFOS-UHFFFAOYSA-N
SMILES [H]C(=O)N(C)C(=O)CSP(=S)(OC)OC
CAS DataBase Reference 2540-82-1(CAS DataBase Reference)
EWG's Food Scores 4
FDA UNII 7O9EWV477R
EPA Substance Registry System Formothion (2540-82-1)
UNSPSC Code 41116107
NACRES NA.43

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Skull and Crossbones (GHS06)Health Hazard (GHS08)
GHS02,GHS06,GHS08
Signal word  Danger
Hazard statements  H226-H302-H304-H311+H331-H315-H319-H335-H373-H412
Precautionary statements  P210-P273-P280-P301+P310-P303+P361+P353-P331
target organs Central nervous system,Liver,Kidney, Respiratory system
PPE Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
Hazard Codes  Xn
Risk Statements  21/22-36/38-20/21/22-10
Safety Statements  36/37-36-26
RIDADR  3018
WGK Germany  3
HazardClass  6.1(b)
PackingGroup  III
Storage Class 3 - Flammable liquids
Hazard Classifications Acute Tox. 3 Dermal
Acute Tox. 3 Inhalation
Acute Tox. 4 Oral
Aquatic Chronic 3
Asp. Tox. 1
Eye Irrit. 2
Flam. Liq. 3
Skin Irrit. 2
STOT RE 2 Inhalation
STOT SE 3
Hazardous Substances Data 2540-82-1(Hazardous Substances Data)
Toxicity LD50 in rats, rabbits (mg/kg): 350, 410 orally (Liesche)

FORMOTHION price More Price(8)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich HPA063843 Anti-NUCKS1 antibody produced in rabbit Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody 100 μL $667 2026-04-30 Buy
Sigma-Aldrich HPA062351 Anti-NUCKS1 antibody produced in rabbit Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution 100 μL $667 2026-04-30 Buy
Sigma-Aldrich 46424 Formothion solution ~80% in xylene, PESTANAL 2540-82-1 250mg $165 2026-04-30 Buy
Tocris 5127 P1 ≥98%(HPLC) 2540-82-1 1 $204 2021-12-16 Buy
Usbiological 487343 NUCKS 2540-82-1 100ul $499 2021-12-16 Buy
Product number Packaging Price Buy
HPA063843 100 μL $667 Buy
HPA062351 100 μL $667 Buy
46424 250mg $165 Buy
5127 1 $204 Buy
487343 100ul $499 Buy

FORMOTHION Chemical Properties,Uses,Production

Description

Formothion is a pale yellow liquid or crystalline mass, decomposes on distillation, mp 25–26 C, vp 0.113 mPa (20 C). It is poorly soluble in water (2.6 g/L at 24 C) and miscible with most organic solvents, except aliphatic hydrocarbons. Log Kow = 1.47. Formothion is hydrolyzed in aqueous media to dimethoate (activation) and dimethoate carboxylic acid (degradation): DT50 (23 C) at pH 3–9 is less than 1 d.

Chemical Properties

Yellow liquid.Insoluble in water; miscible with common organic solvents.

Chemical Properties

Formothion is an odorless, yellowish viscous oil or crystalline mass.

Uses

Formothion is used to control sucking pests and internally feeding larvae in a variety of crops.

Uses

Acaricide, systemic insecticide.

Definition

ChEBI: Formothion is a dicarboximide.

Production Methods

Formothion is commercially produced through esterification and thiophosphorylation reactions involving dimethylthiophosphoric acid and formamide derivatives. It begins with the preparation of O,O-dimethyl dithiophosphoric acid, which is typically obtained by reacting phosphorus pentasulfide with methanol. This intermediate is then reacted with formamide or a substituted formamide under controlled conditions to form the active ester compound. The reaction involves thiophosphorylation, where the sulphur-containing phosphorus group is bonded to the nitrogen-containing formamide moiety. The process is carried out in organic solvents such as toluene or xylene, under reflux and with acid or base catalysts to optimise yield.

General Description

Viscous yellow oil or a crystalline mass. Used as an insecticide and acaricide on crops and ornamentals. Not presently produced commercially in the U.S.

Air & Water Reactions

hydrolyzed by water especially under alkaline conditions. [EPA, 1998].

Reactivity Profile

Organophosphates, such as FORMOTHION, 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.

Health Hazard

FORMOTHION is one of the least toxic systemic organophosphates. FORMOTHION is a compound of low to moderate toxicity. It causes the depression of cholinesterase, leading to accumulation of acetylcholine in the nervous system, which is believed to be responsible for the symptoms.

Fire Hazard

When heated to decomposition, FORMOTHION emits very toxic fumes of nitrogen oxides, phosphorus oxides and sulfur oxides. FORMOTHION is an organophosphorus insecticide. Some of these materials may burn but none of them ignite readily. Container may explode in heat of fire. Fire and runoff from fire control water may produce irritating or poisonous gases. Avoid alkaline pesticides; hydrolyzed by water especially under alkaline conditions.

Agricultural Uses

Insecticide, Acaricide: Formothion is a systemic and contact insecticide used to control spider mites, aphids, psyllids, mealy bugs, whiteflies, jassids, leaf miners, ermine moths, and fruit flies. It is used on tree fruits, vines, olives, hops, cereals, sugar cane, rice. Formothion is available as an emulsifiable concentrate and an ultra-low-volume spray. A U.S. EPA restricted Use Pesticide (RUP). Not approved for use in EU countries

Trade name

AFLIX®; ANTHIO®; ANTIO®; CP 53926®; S 6900®; SAN 244 I®; SAN 6913 I®; SAN 71071®; SPENCER S-6900®; VEL 4284®

Mechanism of action

Systemic with contact action. Acetylcholinesterase (AchE) inhibitor.

Safety Profile

Poison by ingestion, inhalation, sh contact, and intravenous routes. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx, POx, and SOx. See also ESTERS.

Potential Exposure

Formothion is an insecticide and acar icide for use on crops and ornamentals. Formothion is not currently produced commercially in the U.S.

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 thischemical 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. Keepvictim quiet and maintain normal body temperature. Effectsmay be delayed; keep victim under observation.

Metabolic pathway

Formothion is broken down in aqueous solution to approximately equal amounts of dimethoate and dimethoate carboxylic acid, the first of which is an activation step and the latter a degradative one. All studies which have investigated the fate of formothion in biological systems have identified these two metabolites but there is evidence that their formation is purely base-catalysed and not enzyme-catalysed. In this respect, the amide group of formothion is much more labile than that of dimethoate since dimethoate carboxylic acid has only been reported in metabolic studies and is not formed by base-catalysed hydrolysis of dimethoate.

storage

Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with thischemical you should be trained on its proper handling andstorage. Store in tightly closed containers in a cool, wellventilated area away from alkaline materials. Wherepossible, automatically pump liquid from drums or otherstorage containers to process containers.

Shipping

UN3018 Organophosphorus pesticides, liquid, toxic, Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

Degradation

Formothion is hydrolysed by water to dimethoate (2) and dimethoate carboxylic acid (3). Dilute solutions in non-polar organic solvents are stable (PM). El-Oshar and Dauterman (1977) investigated the hydrolysis of [O-14C-methyl]formothion in 1.0 M phosphate buffer at pH values between 5.5 and 8.0 at 37 °C. The amounts of unchanged formothion and products were assessed after 30 min. At all pH values the amounts of dimethoate (2) and dimethoate carboxylic acid (3) were approximately equal, indicating that the rate of attack by the hydroxyl ion was equal at both carbonyl groups. The rate of hydrolysis was pH dependent with 16.4% hydrolysis at pH 5.5, 65.2% hydrolysis at pH 7.0 and 96.7% hydrolysis at pH 8.0 after 30 min. The route leading to dimethoate carboxylic acid would yield N-methylformamide (4) as the additional product. A suggested route for the base-catalysed hydrolysis of formothion is shown in Scheme 1.

Toxicity evaluation

The acute oral LD50 for rats is 365–500 mg/kg. Inhalation LC50 (4 h) for rats is 3.2 mg/L air. NOEL (2 y) for rats is 80 mg/kg diet (4 mg/kg/d). ADI is 0.02 mg/kg b.w.

Incompatibilities

Strong oxidizers may cause release of toxic phosphorus oxides. Organophosphates, in the pres ence of strong reducing agents such as hydrides, may form highly toxic and flammable phosphine gas. Keep away from alkaline materials.

Waste Disposal

In accordance with 40CFR 165 recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by follow ing package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.

Pesticide Type

Insecticide; Acaricide

FORMOTHION Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 101)Suppliers
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
GL Biochem (Shanghai) Ltd 21-61263452 13641803416 ymbetter@glbiochem.com China 9981 64
Sichuan Kulinan Technology Co., Ltd 400-1166-196 18981987031 cdhxsj@163.com China 11674 57
Chengdu Ai Keda Chemical Technology Co., Ltd. 4008-755-333 18080918076 800078821@qq.com China 9706 55
Shanghai Meishui Chemical Technology Co., Ltd 021-60549325 18616193163 China 4518 56
Shanghai JONLN Reagent Co., Ltd. 400-0066400 13621662912 422131432@qq.com China 9970 55
TianJin Alta Scientific Co., Ltd. 022-65378550-8551 contact@altascientific.com China 2772 58
Alta Scientific Co., Ltd. 022-6537-8550 15522853686 sales@altasci.com.cn China 4508 55
Shanghai Xilong Biochemical Technology Co., Ltd. 021-52907766-8042 China 9928 58
Shandong Xiya Chemical Co., Ltd. 4009903999 13395398332 sales@xiyashiji.com China 20788 60

View Lastest Price from FORMOTHION manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
FORMOTHION pictures 2021-08-12 FORMOTHION
2540-82-1
$10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd
  • FORMOTHION pictures
  • FORMOTHION
    2540-82-1
  • $10.00-15.00
  • 99%+ HPLC
  • Zhuozhou Wenxi import and Export Co., Ltd
S-[2-(FORMYLMETHYLAMINO)-2-OXOETHYL] O,O-DIMETHYL DITHIOPHOSPHATE S-[2-(FORMYLMETHYLAMINO)-2-OXOETHYL]-O,O-DIMETHYL-PHOSPHORODITHIONATE O,O-DIMETHYL S-(N-FORMYL-N-METHYL-CARBAMOYLMETHYL)PHOSPHORODITHIOATE Formothionsolution in xylene PESTANAL, s Formothion 0.1 ForMothion solutio Anthio 33 nthio 25 Anti-NUCKS1 antibody produced in rabbit ANTI-NUCKS1 (N-TERM) antibody produced in rabbit JC7 NUCKS NUCKS1 formothion (bsi,iso,esa,jmaf) formothion solution FORMOTHION STANDARD O,O-Dimethyl-S-(N-methyl-N-formylaminomethyl)dithiophosphate formothion (ISO) N-formyl-N-methylcarbamoylmethyl O,O-dimethyl phosphorodithioate 2-[(Dimethoxyphosphinothioyl)thio]-N-methyl-N-formylacetamide Dithiophosphoric acid O,O-dimethyl S-(N-formyl-N-methylcarbamoylmethyl) ester O,O-DIMETHYLS-(N-FORMYL-N-METHYLCARBAMOYLMETHYL)DITHIOPHOSPHATE GLY-SER-PHE-LEU-VAL-ARG-GLU-SER 2-dimethoxyphosphinothioylsulfanyl-N-formyl-N-methylacetamide 2-dimethoxyphosphinothioylsulfanyl-N-methanoyl-N-methyl-ethanamide N-[2-(dimethoxythiophosphorylthio)acetyl]-N-methyl-formamide Formothion 100mg [2540-82-1] Formothion - See P-149S-CN - See P-149S-CN Acetamide, N-formyl-2-mercapto-N-methyl-, S-ester with O,O-dimethyl phosphorodithioate acetamide,n-formyl-2-mercapto-n-methyl-,s-esterwitho,o-dimethylphosphoro acetamide,n-formyl-2-mercapto-n-methyl-,s-esterwitho,o-dimethylphosphorodi afliz(sandoz) Anthio 25 anthio25 Antio CP 53926 cp53926 des-ester ENT 27,257 ent27,257 formothion25ec J-38 mides-ester N-Formyl-N-methylcarbamoylmethyl O,O-dimethyl phosphorodithioate n-formyl-n-methylcarbamoylmethylo,o-dimethylphosphorodithioate O,O-Dimethyl Dithiophosphorylacetic acid N-methyl-N-formylamide O,O-Dimethyl phosphorodithioate N-formyl-2-mercapto-N-methylacetamide S-ester O,O-Dimethyl S-(N-methyl-N-formylcarbamoylmethyl)phosphorodithioate o,o-dimethyldithiophosphorylaceticacidn-methyl-n-formylamide o,o-dimethylester,s-esterwithn-formyl-2-mercapto-n-phosphorodithioicaci o,o-dimethylphosphorodithioaten-formyl-2-mercapto-n-methylacetamides-ester O,O-Dimethyl-S-(3-methyl-2,4-dioxo-3-azabutyl)dithiofosfaat o,o-dimethyl-s-(3-methyl-2,4-dioxo-3-aza-butyl)-dithiofosfaat O,O-Dimethyl-S-(3-methyl-2,4-dioxo-3-azabutyl)dithiophosphat o,o-dimethyl-s-(3-methyl-2,4-dioxo-3-aza-butyl)-dithiophosphat O,O-Dimethyl-S-(N-methyl-N-formylcarbamoylmethyl)dithiophosphat o,o-dimethyl-s-(n-methyl-n-formyl-carbamoylmethyl)-dithiophosphat o,o-dimethyls-(n-methyl-n-formylcarbamoylmethyl)phosphorodithioate O,O-Dimetil-S-(N-formil-N-metilcarbamoilmetil)ditiofosfato