Vamidothion

ChemicalBook > CAS DataBase List > Vamidothion

Product Name: Vamidothion
CAS No.: 2275-23-2
Chemical Name: Vamidothion
Synonyms: nph83;nph-83;KILVAL;10465rp;rp-9895;trucidor;ent26,613;vamidoate;Kilval[R];r.p.10,465
CBNumber: CB2771555
Molecular Formula: C8H18NO4PS2
Formula Weight: 287.34
MOL File: 2275-23-2.mol

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Vamidothion Property

Melting point:: 35.5°C
Boiling point:: 72.8°C
Density: 1.240±0.06 g/cm3(Predicted)
vapor pressure: 9×10^-6 Pa (est.)
Flash point:: 2 °C
storage temp.: 0-6°C
Water Solubility: 4,000,000 mg l^-1
pka: 15.22±0.46(Predicted)
CAS DataBase Reference: 2275-23-2(CAS DataBase Reference)
NIST Chemistry Reference: Phosphorothioic acid, o,o-dimethyl s-[2-[[1-methyl-2-(methylamino)-2-oxoethyl]thio]ethyl] ester(2275-23-2)
EPA Substance Registry System: Vamidothion (2275-23-2)

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Safety

Hazard Codes: T;N,N,T,Xn,F
Risk Statements: 21-25-50-36-20/21/22-11
Safety Statements: 36/37-45-61-16
RIDADR: UN 2811
WGK Germany: 2
RTECS: TF7900000
HazardClass: 6.1(b)
PackingGroup: III
Hazardous Substances Data: 2275-23-2(Hazardous Substances Data)
Toxicity: LD50 oral in rabbit: 160mg/kg

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H319Causes serious eye irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

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

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 32931
Product name: Vamidothion solution
Purity: 100μg/mL in acetonitrile, PESTANAL
Packaging: 2ml
Price: $71.7
Updated: 2022/05/15

TRC

Product number: V756480
Product name: Vamidothion
Packaging: 1mg
Price: $95
Updated: 2021/12/16

TRC

Product number: V756480
Product name: Vamidothion
Packaging: 10mg
Price: $795
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: PST0000306
Product name: VAMIDOTHION
Purity: 95.00%
Packaging: 25MG
Price: $721.88
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: PST0000306
Product name: VAMIDOTHION
Purity: 95.00%
Packaging: 250MG
Price: $1732.5
Updated: 2021/12/16

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Vamidothion Chemical Properties,Usage,Production

Description

Vamidothion is a colorless crystalline substance,. It is readily soluble in water (4 kg/L) and most organic solvents except aliphatic hydrocarbons. Log Kow = 0.12. It decomposes in strong alkaline and acidic media.

Uses

Vamidothion is a phosphorothioic insecticide for apples and potatoes.

Uses

Vamidothion is a systemic insecticide used to control Homoptera in cotton, fruit and rice.

Definition

ChEBI: An organic thiophosphate that is N-methyl-2-[(2-sulfanylethyl)sulfanyl]propanamide in which the thiol group has been converted to the corresponding O,O-dimethyl thiophoshate. Formerly used as an inse ticide and acaricide, it is no longer approved for use within the European Union.

Pharmacology

Pyriproxyfen formulations demonstrate persistent efficacy. For example, a water-based 5.3% pyriproxyfen spot-on formulation applied to cats was reported to completely prevent the hatching of flea eggs for at least 46 days after treatment and continued to provide greater than 96% control until day 60 (57). Because pyriproxyfen is efficacious at very low concentrations, trace amounts of the chemical, when transferred from treated pets to their environments, are sufficient to inhibit the development of larvae.

Metabolic pathway

Vamidothion is mainly metabolised via oxidation to its sulfoxide; further oxidation to the corresponding sulfone has been observed in houseflies but occurs much less readily than with other thioether-containing organophosphates (e.g. phorate). The sulfoxide is then hydrolysed via P-S and C-S bond cleavage to give the thiol or hydroxyl derivatives and dimethyl phosphate and O,O-dimethyl phosphorothioate respectively. O-Demethylation apparently occurs as a major degradation process in plants but has not been observed in soil or in animals. N-Demethylation and hydrolysis to the corresponding carboxylic acid, such as occurs with dimethoate, does not apparently happen in the case of vamidothion.

Degradation

Vamidothion is decomposed in strongly acidic or alkaline media (PM). Barceld et al. (1993) examined the photolysis of vamidothion in water containing 2-4% methanol and 5% acetone as a photosensitiser irradiated by a xenon arc (suntest) lamp. Metabolites were analysed and characterised by HPLC, thermospray MS and UV (diode array) spectra. The main degradation product identified was vamidothion sulfoxide (2). This product of vamidothion photolysis is shown in Scheme 1.

Toxicity evaluation

The acute oral LD₅₀ for rats is 64–105 mg/kg. Inhalation LC50 (4 h) for rats is 1.73 mg/L air. ADI is 8 μg/kg b.w.

Vamidothion Preparation Products And Raw materials

Raw materials

Preparation Products

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2275-23-2, VamidothionRelated Search:

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Vamidothion(content>10%)

10465rp

2-(2-dimethoxyphosphinoylthioethylthio)-n-methylpropionamide

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o,o-dimethylphosphorothioates-esterwith2-((2-mercaptoethyl)thio)-n-methylp

o,o-dimethyls-(2-((1-methyl-2-(methylamino)-2-oxoethyl)thio)ethyl)phosphoroth

o,o-dimethyls-2-(1-n-methylcarbamoylethylmercapto)ethylthiophosphate

phosphorothioicacid,o,o-dimethylester,s-esterwith2-((2-mercaptoethyl)thio

r.p.10,465

ropionamide.

Phosphorothioic acid, O,O-dimethyl ester, S-ester with 2-[(2-mercaptoethyl)thio]-N-methylpropionamide

Phosphorothioic acid, O,O-dimethyl S-[2-[[1-methyl-2-(methylamino)-2-oxoethyl]thio]ethyl] ester

Vamidothion 100mg [2275-23-2]

BaMidothion

VaMidothion standard solution

VaMidothion solutio

Vamidothion Solution, 100ppm

VAMIDOTHION

2-(2-dimethoxyphosphorylsulfanylethylsulfanyl)-N-methylpropanamide

Kilval(TM)

KILVAL

dimethyl phosphorothioate 2-((2-mercaptoethyl)thio)-n-methylpropionamide s-ester

rp-9895

trucidor

vamidoate

O,O-DIMETHYL S-[2-(1-METHYL-2-METHYLAMINO-2-OXOETHYLTHIO)ETHYL] PHOSPHOROTHIOATE

O,O-DIMETHYL S-2-(1-METHYLCARBAMOYLETHYLTHIO)ETHYL PHOSPHOROTHIOATE

Kilval[R]

O,O-Dimethyl-S-(2-[(1-methylcarbamoylethyl) thio] ethyl) phosphorodithioate

Trucidor[R]

dimethyl S-2-(1-methylcarbamoylethylthio)ethyl phosphorothioate

vamidothion (bsi,iso,jmaf)

vamidothion (ISO) O,O-dimethyl S-2-(1-methylcarbamoylethylthio) ethyl phosphorothioate

Vamidothion solution

Vamidothion E.C.

3-(2-Dimethoxyphosphorylsulfanylethylsulfanyl)-N-methylpropanamide

Vamidothion@1000 μg/mL in Acetonitrile

VamidothionSolution,100mg/L,1ml

Vamidothion @100 μg/mL in MeOH

Vamidothion Standard

Vamidothion Solution in Methanol, 1000μg/mL

Aphids kill more

vamidothion in Acetone

Vamidothion 10.0 μg/ml Ethyl acetate

Vamidothion 100 μg/ml Acetonitrile

Vamidothion 100 μg/ml Toluene

C17900000 Vamidothion

2275-23-2

2265-23-2

C8H18NO4PS2

C8H18NO4PS