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| Name |
Thionazin |
EINECS | N/A |
| CAS No. | 297-97-2 | Density | 1.278g/cm3 |
| PSA | 95.37000 | LogP | 2.80350 |
| Solubility | 1.14g/L(25 oC) | Melting Point |
-1.7℃ |
| Formula | C8H13 N2 O3 P S | Boiling Point | 307°Cat760mmHg |
| Molecular Weight | 248.243 | Flash Point | 139.5°C |
| Transport Information | N/A | Appearance | Yellow-greenish or orange-brown powder |
| Safety | Poison by ingestion, skin contact, and ocular routes. A cholinesterase inhibitor type of insecticide. When heated to decomposition it emits highly toxic fumes of NOx, POx, and SOx. See also PARATHION. | Risk Codes | 27/28-40-21/22-36-20/21/22-11 |
| Molecular Structure |
|
Hazard Symbols | Toxic by ingestion, inhalation, and skin absorption; cholinesterase inhibitor. |
| Synonyms |
Ethylpyrazinyl phosphorothioate (6CI); Phosphorothioic acid, O,O-diethyl O-pyrazinylester (8CI,9CI); AC 18133; ACC 18133; American Cyanamid 18133; CL 18133; Cynem;Cynophos; EN 18133; ENT 25,580; Experimental nematocide 18,133; Nemafos;Nemafos 10 G; Nemaphos; Nematocide GR; O,O-Diethyl O-2-pyrazinylphosphorothioate; Thionazin; Thionazine; Zinophos; Zynophos |
Article Data | 2 |
Thionazin Chemical Properties
Empirical Formula of Thionazin (CAS NO.297-97-2): C8H13N2O3PS
Molecular Weight: 248.2392
EINECS: 206-049-6
Index of Refraction: 1.537
Density: 1.278 g/cm3
Flash Point: 139.5 °C
Enthalpy of Vaporization: 52.57 kJ/mol
Boiling Point: 307 °C at 760 mmHg
Vapour Pressure: 0.00135 mmHg at 25 °C
storage temp.: 2-8 °C
Appearance: Amber liquid
Structure of Thionazin (CAS NO.297-97-2):
Thionazin Uses
Thionazin (CAS NO.297-97-2) can be used in insecticides, fungicides, and nematocides.
Thionazin Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| bird - wild | LD50 | oral | 2420ug/kg (2.42mg/kg) | ASTM Special Technical Publication. Vol. (680), Pg. 157, 1979. | |
| duck | LD50 | oral | 1680ug/kg (1.68mg/kg) | Toxicology and Applied Pharmacology. Vol. 47, Pg. 451, 1979. | |
| duck | LD50 | skin | 7mg/kg (7mg/kg) | Toxicology and Applied Pharmacology. Vol. 47, Pg. 451, 1979. | |
| guinea pig | LD50 | skin | 10mg/kg (10mg/kg) | Guide to the Chemicals Used in Crop Protection. Vol. 6, Pg. 498, 1973. | |
| mouse | LD50 | oral | 5mg/kg (5mg/kg) | "Organophosphorus Pesticides: Organic and Biological Chemistry," Eto, M., Cleveland, OH, CRC Press, Inc., 1974Vol. -, Pg. 197, 1974. | |
| pigeon | LD50 | oral | 2370ug/kg (2.37mg/kg) | ASTM Special Technical Publication. Vol. (680), Pg. 157, 1979. | |
| quail | LD50 | oral | 3160ug/kg (3.16mg/kg) | ASTM Special Technical Publication. Vol. (680), Pg. 157, 1979. | |
| rabbit | LDLo | ocular | 50mg/kg (50mg/kg) | "Pflanzenschutz-und Schaedlingsbekaempfungsmittel: Abriss einer Toxikologie und Therapie von Vergiftungen," 2nd ed., Klimmer, O.R., Hattingen, Fed. Rep. Ger., Hundt-Verlag, 1971Vol. -, Pg. 36, 1971. | |
| rat | LD50 | oral | 3500ug/kg (3.5mg/kg) | Toxicology and Applied Pharmacology. Vol. 14, Pg. 515, 1969. | |
| rat | LD50 | skin | 8mg/kg (8mg/kg) | Special Publication of the Entomological Society of America. Vol. 78-1, Pg. 46, 1978. |
Thionazin Consensus Reports
EPA Extremely Hazardous Substances List. Reported in EPA TSCA Inventory. Community Right-To-Know List.
Thionazin Safety Profile
Poison by ingestion, skin contact, and ocular routes. A cholinesterase inhibitor type of insecticide. When heated to decomposition it emits highly toxic fumes of NOx, POx, and SOx. See also PARATHION.
Hazard Codes: 
T+
Xn
F
Risk Statements: 27/28-40-21/22-36-20/21/22-11
R11:Highly flammable.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
R21/22:Harmful in contact with skin and if swallowed.
R27:Very toxic in contact with skin.
R28:Very toxic if swallowed.
R36:Irritating to eyes.
R40:Limited evidence of a carcinogenic effect.
Safety Statements: 36/37/39-38-45-36/37-26
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37:Wear suitable protective clothing and gloves.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S38:In case of insufficient ventilation, wear suitable respiratory equipment.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
Thionazin Specification
Thionazin ,its cas register number is 297-97-2. It also can be called Phosphorothioic acid, O,O-diethyl O-2-pyrazinyl ester ; O,O-Diethyl O-pyrazin-2-yl phosphorothioate ; Phosphorothioic acid, O,O-diethyl O-pyrazinyl ester ; and O,O-Diethyl O-pyrazinyl phosphorothioate . It is 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.