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126-75-0

Basic Information
CAS No.: 126-75-0
Name: DEMETON S
Article Data: 62
Molecular Structure:
Molecular Structure of 126-75-0 (DEMETON S)
Formula: C8H19 O3 P S2
Molecular Weight: 258.343
Synonyms: Demetonthiolo; Demeton-S; Demetonthiol; Ethylthionodemeton; IS; IS (pesticide);Isosystox; O,O-Diethyl S-[2-(ethylthio)ethyl] phosphorothioate; O,O-DiethylS-[2-(ethylthio)ethyl] thiophosphate; Systox-thiol; Thioldemeton
EINECS: 204-801-8
Density: 1.146 g/cm3
Melting Point: 95-97℃
Boiling Point: 320.5 °C at 760 mmHg
Flash Point: 147.6 °C
Solubility: Soluble in water:0.2g/100 ml at 20ºC
Appearance: COLOURLESS OILY LIQUID
Hazard Symbols: VeryT+
Risk Codes: 27/28
Safety: Poison by ingestion, intraperitoneal, and subcutaneous routes. When heated to decomposition it emits very toxic fumes of POx and SOx. See also DEMETON-O + DEMETON-S and DEMETON; DEMETON-O-METHYL; DEMETON-O-METHYL SULFOXIDE; DEMETON-S-METHYL; DEMETON-S-METHYL-SULPHONE.

Analytical Methods:

   

For occupational chemical analysis use NIOSH: Demeton, 5514.

Transport Information: 3018
PSA: 95.94000
LogP: 3.65380
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Chemistry

Product Name: Demeton-S (CAS NO.126-75-0)


Molecular Formula: C8H19O3PS2
Molecular Weight: 258.34g/mol
Mol File: 126-75-0.mol
Einecs: 204-801-8
Appearance: Oily Liquid
Boiling point: 320.5 °C at 760 mmHg
Storage Temperature: 0-6°C
Flash Point: 147.6 °C
Density: 1.146 g/cm3
Water Solubility: Soluble in water:0.2g/100 ml at 20ºC
Surface Tension: 38.9 dyne/cm
Enthalpy of Vaporization: 53.98 kJ/mol
Vapour Pressure: 0.000595 mmHg at 25°C
XLogP3: 2.3
H-Bond Donor: 0
H-Bond Acceptor: 3
Product Categories: All Inhibitors; Inhibitors; Phosphorylating and Phosphitylating Agents; AcaricidesAlphabetic; D; DA - DHEnvironmental Standards; Insecticides; MetabolitesPesticides; Organophorous; Pesticides; Pesticides&Metabolites

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 intraperitoneal 5500ug/kg (5.5mg/kg)   AMA Archives of Industrial Health. Vol. 13, Pg. 606, 1956.
mouse LD50 intraperitoneal 174ug/kg (0.174mg/kg) PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE) Pharmazie. Vol. 35, Pg. 806, 1980.
mouse LD50 subcutaneous 6mg/kg (6mg/kg)   Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 217, Pg. 144, 1953.
mouse LD50 unreported 5600ug/kg (5.6mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 7(5), Pg. 38, 1963.
mouse LDLo oral 5800ug/kg (5.8mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 2(5), Pg. 7, 1958.
rabbit LDLo skin 5mg/kg (5mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 2(5), Pg. 7, 1958.
rat LD50 intraperitoneal 1500ug/kg (1.5mg/kg)   AMA Archives of Industrial Health. Vol. 13, Pg. 606, 1956.
rat LD50 intravenous 1700ug/kg (1.7mg/kg)   Biochemical Pharmacology. Vol. 6, Pg. 244, 1961.
rat LD50 oral 1500ug/kg (1.5mg/kg)   Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 217, Pg. 144, 1953.

Safety Profile

Poison by ingestion, intraperitoneal, and subcutaneous routes. When heated to decomposition it emits very toxic fumes of POx and SOx. See also DEMETON-O + DEMETON-S and DEMETON; DEMETON-O-METHYL; DEMETON-O-METHYL SULFOXIDE; DEMETON-S-METHYL; DEMETON-S-METHYL-SULPHONE.
Analytical Methods:  
For occupational chemical analysis use NIOSH: Demeton, 5514.
Safety Information of Demeton-S (CAS NO.126-75-0):
Hazard Codes: T+
Risk Statements: 27/28
27:  Very Toxic in contact with skin 
28:  Very Toxic if swallowed
Safety Statements: 28-36/37-45
28:  After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
36:  Wear suitable protective clothing  
37:  Wear suitable gloves 
45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)

Analytical Methods

For occupational chemical analysis use NIOSH: Demeton, 5514.

Specification

 Demeton-S ,its CAS NO. is 126-75-0,the synonyms is Demetonthiol ; Diethyls-(2-ethioethyl)thiophosphate ; Ethanethiol,2-(ethylthio)-,s-esterwitho,o-diethylphosphorothioate ; Is ; Isodemeton ; Isosystox ; Izosystox ; Izosystox(czech) .