Product Name

  • Name

    DEMETON S

  • EINECS 204-801-8
  • CAS No. 126-75-0
  • Article Data62
  • CAS DataBase
  • Density 1.146 g/cm3
  • Solubility Soluble in water:0.2g/100 ml at 20ºC
  • Melting Point 95-97℃
  • Formula C8H19 O3 P S2
  • Boiling Point 320.5 °C at 760 mmHg
  • Molecular Weight 258.343
  • Flash Point 147.6 °C
  • Transport Information 3018
  • Appearance COLOURLESS OILY LIQUID
  • 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.

  • Risk Codes 27/28
  • Molecular Structure Molecular Structure of 126-75-0 (DEMETON S)
  • Hazard Symbols VeryT+
  • 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
  • PSA 95.94000
  • LogP 3.65380

DEMETON-S Chemical Properties

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

DEMETON-S 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.

DEMETON-S 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)

DEMETON-S Analytical Methods

For occupational chemical analysis use NIOSH: Demeton, 5514.

DEMETON-S 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) .

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