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55-38-9

55-38-9 structural image
Product Name: Fenthion
Formula: C10H15O3PS2
Synonyms: O,O′-Dimethyl O″-[3-methyl-4-(methylthio)phenyl] thiophosphate
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description Fenthion is a yellow to tan oily liquid with a slight odor of garlic. (NTP, 1992)
Color/Form COLORLESS LIQUID
Odor Slight garlic odor
Boiling Point 189 °F at 0.01 mmHg (NTP, 1992)
Melting Point 43 °F (NIOSH, 2023)
Flash Point 170 °C
Solubility Insoluble (<1 mg/ml at 72.5 °F) (NTP, 1992)
Density 1.25 at 68 °F (NTP, 1992) - Denser than water; will sink
Vapor Density Relative vapor density (air = 1): 9.6
Vapor Pressure 3e-05 mmHg at 68 °F (NTP, 1992)
LogP log Kow= 4.091
Stability/Shelf Life STABLE TO LIGHT
Autoignition Temperature 365 °C
Decomposition When heated to decomposition it emits very toxic fumes of /phosphorus oxides and sulfur oxides/.
Corrosivity NON-CORROSIVE
Refractive Index INDEX OF REFRACTION: 1.5698 AT 20 °C/D
Collision Cross Section 156.19 Ų [M+H]+
Kovats Retention Index 1918 1919 1920 1941 1957 1957.9 1945.5 1937 1952.7 1943.8 1942.6 1917 1955.5 1945.1 1930 1940 1945.5 1956.9 1957.5 1958.6
Other Experimental Properties Brown oil 95-98% pure, with a weak garlic-like odor /Technical fenthion/
Chemical Classes Pesticides -> Organophosphate Insecticides

SAFETY INFORMATION

Signal word Danger
Pictogram(s)

Skull and Crossbones
Acute Toxicity
GHS06

Health Hazard
GHS08

Environment
GHS09
GHS Hazard Statements H330:Acute toxicity,inhalation
H341:Germ cell mutagenicity
H372:Specific target organ toxicity, repeated exposure
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P202:Do not handle until all safety precautions have been read and understood.
P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.

COMPUTED DESCRIPTORS

Molecular Weight 278.3 g/mol
XLogP3 4.1
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 5
Rotatable Bond Count 5
Exact Mass 278.02002368 g/mol
Monoisotopic Mass 278.02002368 g/mol
Topological Polar Surface Area 85.1 Ų
Heavy Atom Count 16
Formal Charge 0
Complexity 254
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

Fenthion is a yellow to tan oily liquid with a slight odor of garlic. (NTP, 1992)