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3735-33-9

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Basic Information
CAS No.: 3735-33-9
Name: PHOSMET-OXON
Article Data: 1
Molecular Structure:
Molecular Structure of 3735-33-9 (PHOSMET-OXON)
Formula: C11H12 N O5 P S
Molecular Weight: 301.26
Synonyms: Phosphorothioicacid, O,O-dimethyl S-phthalimidomethyl ester (6CI); Phosphorothioic acid,O,O-dimethyl ester, S-ester with N-(mercaptomethyl)phthalimide (7CI,8CI);Phthalimide, N-(mercaptomethyl)-, S-ester with O,O-dimethyl phosphorothioate(8CI); Imidoxon; N-(Mercaptomethyl)phthalimide S-(O,O-dimethyl phosphorothioate);O,O-Dimethyl S-phthalimidomethyl phosphorothioate; O,O-Dimethylphosphorothioate S-ester with N-(mercaptomethyl)phthalimide; Oxoimidan; Phosmetoxon; R 1571; R 1571A; S-Phthalimidomethyl O,O-dimethyl phosphorothioate;Stauffer R 1571; Stauffer R 1571A
Density: 1.451g/cm3
Melting Point: 74 °C
Boiling Point: 405.6°C at 760 mmHg
Flash Point: 199.1°C
Hazard Symbols:
Risk Codes: 11-38-48/20-63-65-67
Safety: Poison by ingestion. A pesticide. When heated to decomposition it emits very toxic fumes of NOx, POx, and SOx. See also ESTERS.
PSA: 108.02000
LogP: 2.31210
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Chemistry

IUPAC Name: 2-(Dimethoxyphosphorylsulfanylmethyl)isoindole-1,3-dione
Synonyms: Phosphorothioic acid, S-[(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)methyl] O,O-dimethyl ester ; S-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl] O,O-dimethyl phosphorothioate ; Imidoxon ; Oxoimidan
Product Categories: AcaricidesEnvironmental Standards;Insecticides;MetabolitesPesticides;OrganophorousAlphabetic;P;PER - POLAPesticides;Pesticides;Pesticides&Metabolites;Phthalimides
CAS NO:3735-33-9
Molecular Formula of Phosphorothioic acid, s-((1,3-dihydro-1,3-dioxo-2h-isoindol-2-yl)methyl) o,o-dimethyl ester (CAS NO.3735-33-9) : C11H12NO5PS
Molecular Weight of Phosphorothioic acid, s-((1,3-dihydro-1,3-dioxo-2h-isoindol-2-yl)methyl) o,o-dimethyl ester (CAS NO.3735-33-9) :301.26
Molecular structure of Phosphorothioic acid, s-((1,3-dihydro-1,3-dioxo-2h-isoindol-2-yl)methyl) o,o-dimethyl ester (CAS NO.3735-33-9) :
Index of Refraction: 1.589
Surface Tension: 58.4 dyne/cm
Density: 1.451 g/cm3
Flash Point: 199.1 °C
Enthalpy of Vaporization: 65.72 kJ/mol
Boiling Point: 405.6 °C at 760 mmHg
Vapour Pressure: 8.68E-07 mmHg at 25°C
 

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
chicken LD50 oral 46mg/kg (46mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD		 Toxicology and Applied Pharmacology. Vol. 6, Pg. 147, 1964.
rat LD50 oral 50mg/kg (50mg/kg)   Agricultural Research Service, USDA Information Memorandum. Vol. 20, Pg. 23, 1966.

Safety Profile

Poison by ingestion. A pesticide. When heated to decomposition it emits very toxic fumes of NOx, POx, and SOx. See also ESTERS.
Hazard Codes FlammableF,HarmfulXn
Risk Statements 11-38-48/20-63-65-67
R11:Highly flammable. 
R38:Irritating to skin. 
R48/20: Harmful: danger of serious damage to health by prolonged exposure through inhalation 
R63:Possible risk of harm to the unborn child. 
R65:Harmful: may cause lung damage if swallowed. 
R67:Vapours may cause drowsiness and dizziness.
Safety Statements 36/37-46-62
S36/37:Wear suitable protective clothing and gloves. 
S46:If swallowed, seek medical advice immediately and show this container or label. 
S62:If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label.
RIDADR 2783
HazardClass 6.1(b)
PackingGroup III