Fenthion

Fenthion
Names
	Preferred IUPAC name O,O-Dimethyl O-[3-methyl-4-(methylsulfanyl)phenyl] phosphorothioate
	Other names • Dimethoxy-[3-methyl-4-(methylthio)phenoxy]-thioxophosphorane; • O,O-Dimethyl O-[3-methyl-4-(methylthio)phenyl] phosphorothioate; • O,O-Dimethyl O-4-methylthio-m-tolyl phosphorothioate
Identifiers
CAS Number	55-38-9 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:34761 ;
ChEMBL	ChEMBL1604375 ;
ChemSpider	3229 ;
ECHA InfoCard	100.000.211
KEGG	D07950 ;
PubChem CID	3346;
UNII	BL0L45OVKT ;
CompTox Dashboard (EPA)	DTXSID8020620 ;
	InChI InChI=1S/C10H15O3PS2/c1-8-7-9(5-6-10(8)16-4)13-14(15,11-2)12-3/h5-7H,1-4H3 Key: PNVJTZOFSHSLTO-UHFFFAOYSA-N ; InChI=1/C10H15O3PS2/c1-8-7-9(5-6-10(8)16-4)13-14(15,11-2)12-3/h5-7H,1-4H3 Key: PNVJTZOFSHSLTO-UHFFFAOYAH;
	SMILES S=P(OC)(OC)Oc1ccc(SC)c(c1)C;
Properties
Chemical formula	C10H15O3PS2
Molar mass	278.33 g/mol
Appearance	colorless, almost odorless liquid; 95-98% pure fenthion is a brown oily liquid with a weak garlic odor
Density	1.250 g/cm3 (at 20 °C / 4 °C)
Melting point	7 °C (45 °F; 280 K)
Boiling point	87 °C (189 °F; 360 K) at 0.01 mmHg
Solubility in water	54-56 ppm (at 20 °C)
Solubility in glyceride oils, methanol, ethanol, ether, acetone, and most organic solvents, especially chlorinated hydrocarbons	soluble
Vapor pressure	4 • 10−5 mmHg (at 20 °C)
Pharmacology
ATCvet code	QP53BB02 (WHO)
Hazards
	NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	None established
IDLH (Immediate danger)	N.D.
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Fenthion is an organothiophosphate insecticide, avicide, and acaricide. Like most other organophosphates, its mode of action is via cholinesterase inhibition. Due to its relatively low toxicity towards humans and mammals, fenthion is listed as moderately toxic compound in U.S. Environmental Protection Agency and World Health Organization toxicity class.

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