Quinalphos

Quinalphos is an organothiophosphate chemical chiefly used as a pesticide. It is a reddish-brown liquid. The chemical formula is C₁₂H₁₅N₂O₃PS, and IUPAC name O,O-diethyl O-quinoxalin-2-yl phosphorothioate.^[1] Ranked 'moderately hazardous' in World Health Organization's (WHO) acute hazard ranking, use of quinalphos, classified as a yellow label (highly toxic) pesticide in India, is widely used in the following crops: wheat, rice, coffee, sugarcane, and cotton.

Quinalphos

Names
Preferred IUPAC name O,O-Diethyl O-(quinoxalin-2-yl) phosphorothioate
Other names O,O-diethyl O-quinoxalin-2-yl phosphorothioate; Diethquinalphion; Diethquinalphione
Identifiers
CAS Number	13593-03-8 Y
3D model (JSmol)	Interactive image Interactive image
ChemSpider	24335
ECHA InfoCard	100.033.650
PubChem CID	26124
UNII	26S837727Y Y
CompTox Dashboard (EPA)	DTXSID7024291
InChI InChI=1S/C12H15N2O3PS/c1-3-15-18(19,16-4-2)17-12-9-13-10-7-5-6-8-11(10)14-12/h5-9H,3-4H2,1-2H3 Key: JYQUHIFYBATCCY-UHFFFAOYSA-N InChI=1/C12H15N2O3PS/c1-3-15-18(19,16-4-2)17-12-9-13-10-7-5-6-8-11(10)14-12/h5-9H,3-4H2,1-2H3 Key: JYQUHIFYBATCCY-UHFFFAOYAW
SMILES CCOP(=S)(OCC)OC1=NC2=CC=CC=C2N=C1 S=P(OCC)(OCC)Oc1nc2ccccc2nc1
Properties
Chemical formula	C12H15N2O3PS
Molar mass	298.30 g·mol−1
Appearance	Reddish-brown liquid
Melting point	31 °C (88 °F; 304 K)
Solubility in water	17.8 mg/L at 22 °C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references