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Cas Database |
| Name |
O,O-Dimethyl O-(4-(methylsulfinyl)-m-tolyl) phosphorothioate |
EINECS | N/A |
| CAS No. | 3761-41-9 | Density | 1.34g/cm3 |
| PSA | 105.87000 | LogP | 4.14480 |
| Solubility | N/A | Melting Point |
58～60℃ |
| Formula | C10H15 O4 P S2 | Boiling Point | 397.1°C at 760 mmHg |
| Molecular Weight | 294.332 | Flash Point | 194°C |
| Transport Information | N/A | Appearance | N/A |
| Safety | Poison by ingestion and intraperitoneal routes. When heated to decomposition it emits very toxic fumes of POx and SOx. | Risk Codes | 11-20/21/22-36-50/53-25 |
| Molecular Structure |
|
Hazard Symbols | F,Xn,N,T |
| Synonyms |
Phosphorothioicacid, O,O-dimethyl O-[4-(methylsulfinyl)-m-tolyl] ester (7CI,8CI);Fensulfoxide; Fenthion sulfoxide; Mesulfenfos; Mesulfenphos |
Article Data | 6 |
O,O-Dimethyl O-(4-(methylsulfinyl)-m-tolyl) phosphorothioate Chemical Properties
IUPAC Name: Dimethoxy-(3-methyl-4-methylsulfinylphenoxy)-sulfanylidene-λ5-phosphane
Synonyms of O,O-Dimethyl O-(4-(methylsulfinyl)-m-tolyl) phosphorothioate (CAS NO.3761-41-9): Fensulfoxide ; Fenthion sulfoxide ; Mesulfenfos ; O,O-Dimethyl O-((4-methylthio)-m-tolyl)phosphorothioate ; Phosphorothioic acid, O,O-dimethyl O-(3-methyl-4-(methylsulfinyl)phenyl) ester (9CI) ; Phosphorothioic acid, O,O-dimethyl O-(4-(methylsulfinyl)-m-tolyl) ester
InChI: InChI=1/C10H15O4PS2/c1-8-7-9(5-6-10(8)17(4)11)14-15(16,12-2)13-3/h5-7H,1-4H3
InChIKey: DLAPIMGBBDILHJ-UHFFFAOYAC
Std. InChI: InChI=1S/C10H15O4PS2/c1-8-7-9(5-6-10(8)17(4)11)14-15(16,12-2)13-3/h5-7H,1-4H3
Std. InChIKey: DLAPIMGBBDILHJ-UHFFFAOYSA-N
Product Categories: Alpha sort;E-GAlphabetic;F;FA - FLPesticides;Insecticides;Organophorous;Pesticides&Metabolites
CAS NO: 3761-41-9
Molecular Formula: C10H15O5PS2
Molecular Weight: 310.3269
Molecular Structure : .png)
EINECS: 200-835-2
H bond acceptors: 4
H bond donors: 0
Freely Rotating Bonds: 5
Polar Surface Area: 105.87 Å2
Index of Refraction: 1.584
Molar Refractivity: 73.09 cm3
Molar Volume: 218.2 cm3
Surface Tension: 59.8 dyne/cm
Density: 1.34 g/cm3
Flash Point: 194 °C
Enthalpy of Vaporization: 62.22 kJ/mol
Boiling Point: 397.1 °C at 760 mmHg
Vapour Pressure: 3.73E-06 mmHg at 25°C
Storage temp: APPROX 4°C
O,O-Dimethyl O-(4-(methylsulfinyl)-m-tolyl) phosphorothioate Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intracrebral | 5mg/kg (5mg/kg) | Pesticide Biochemistry and Physiology. Vol. 8, Pg. 302, 1978. | |
| mouse | LD50 | oral | 220mg/kg (220mg/kg) | BEHAVIORAL: TREMOR GASTROINTESTINAL: CHANGES IN STRUCTURE OR FUNCTION OF SALIVARY GLANDS | Journal of Pharmacobio-Dynamics. Vol. 9, Pg. 697, 1986. |
| rat | LD50 | intraperitoneal | 250mg/kg (250mg/kg) | Toxicology and Applied Pharmacology. Vol. 6, Pg. 86, 1964. | |
| rat | LD50 | oral | 125mg/kg (125mg/kg) | Guide to the Chemicals Used in Crop Protection. Vol. 6, Pg. 279, 1973. | |
| rat | LDLo | skin | 3gm/kg (3000mg/kg) | PERIPHERAL NERVE AND SENSATION: FASCICULATIONS | Bulletin of the World Health Organization. Vol. 29, Pg. 205, 1963. |
O,O-Dimethyl O-(4-(methylsulfinyl)-m-tolyl) phosphorothioate Safety Profile
Hazard Codes: 
F,
Xn,
N,
T
Risk Statements: 11-20/21/22-36-50/53-25
R11: Highly flammable.
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed.
R25 : Toxic if swallowed.
R36: O,O-Dimethyl O-(4-(methylsulfinyl)-m-tolyl) phosphorothioate (CAS NO.3761-41-9) can be irritating to eyes.
R50/53: Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 16-26-36-60-61-45
S16: Keep away from sources of ignition.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36: Wear suitable protective clothing.
S60: This material and its container must be disposed of as hazardous waste.
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: 2783
RTECS: TF9400000
HazardClass: 6.1(b)
PackingGroup III
Poison by ingestion and intraperitoneal routes. When O,O-Dimethyl O-(4-(methylsulfinyl)-m-tolyl) phosphorothioate (CAS NO.3761-41-9) is heated to decomposition, it emits very toxic fumes of POx and SOx.
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