Thionazin

Thionazin
Names
	Preferred IUPAC name O,O-Diethyl O-(pyrazin-2-yl) phosphorothioate
	Other names O,O-Diethyl-O-pyrazin-2-ylthiophosphate; Thionazine; Nemaphos; Zinophos
Identifiers
CAS Number	297-97-2 ;
3D model (JSmol)	Interactive image ;
ChemSpider	8915 ;
ECHA InfoCard	100.005.500
PubChem CID	9272 ;
UNII	KLQ2UIW7HT ;
CompTox Dashboard (EPA)	DTXSID8042470 ;
	InChI InChI=1S/C8H13N2O3PS/c1-3-11-14(15,12-4-2)13-8-7-9-5-6-10-8/h5-7H,3-4H2,1-2H3 Key: IRVDMKJLOCGUBJ-UHFFFAOYSA-N; InChI=1/C8H13N2O3PS/c1-3-11-14(15,12-4-2)13-8-7-9-5-6-10-8/h5-7H,3-4H2,1-2H3 Key: IRVDMKJLOCGUBJ-UHFFFAOYAY;
	SMILES S=P(Oc1nccnc1)(OCC)OCC;
Properties
Chemical formula	C8H13N2O3PS
Molar mass	248.24 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Last updated August 26, 2025

Thionazin is a chemical compound used in nematicides.^[1]

References

↑ University of Hertfordshire. "Thionazin (Ref: AC 18133 )". sitem.herts.ac.uk.

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[1] University of Hertfordshire. "Thionazin (Ref: AC 18133 )". sitem.herts.ac.uk.

[1]

Names

Preferred IUPAC name O,O-Diethyl O-(pyrazin-2-yl) phosphorothioate
Other names O,O-Diethyl-O-pyrazin-2-ylthiophosphate; Thionazine; Nemaphos; Zinophos
Identifiers
CAS Number	297-97-2 ^Y
3D model (JSmol)	Interactive image
ChemSpider	8915
ECHA InfoCard	100.005.500
PubChem CID	9272
UNII	KLQ2UIW7HT ^Y
CompTox Dashboard (EPA)	DTXSID8042470
InChI InChI=1S/C8H13N2O3PS/c1-3-11-14(15,12-4-2)13-8-7-9-5-6-10-8/h5-7H,3-4H2,1-2H3 Key: IRVDMKJLOCGUBJ-UHFFFAOYSA-N InChI=1/C8H13N2O3PS/c1-3-11-14(15,12-4-2)13-8-7-9-5-6-10-8/h5-7H,3-4H2,1-2H3 Key: IRVDMKJLOCGUBJ-UHFFFAOYAY
SMILES S=P(Oc1nccnc1)(OCC)OCC
Properties
Chemical formula	C₈H₁₃N₂O₃PS
Molar mass	248.24 g·mol⁻¹
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references