Pyrazophos

Pyrazophos is an organic compound used as a fungicide^[1] and an insecticide.^[3]

Pyrazophos

Names
Preferred IUPAC name Ethyl 2-[(diethoxyphosphorothioyl)oxy]-5-methylpyrazolo[1,5-a]pyrimidine-6-carboxylate
Other names Curamil (AgrEvo)[1]
Identifiers
CAS Number	13457-18-6 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:81942 Y
ChemSpider	24247
ECHA InfoCard	100.033.310
PubChem CID	26033
UNII	BEG0A8I17D Y
CompTox Dashboard (EPA)	DTXSID7042352
InChI InChI=1S/C14H20N3O5PS/c1-5-19-14(18)11-9-17-12(15-10(11)4)8-13(16-17)22-23(24,20-6-2)21-7-3/h8-9H,5-7H2,1-4H3 Key: JOOMJVFZQRQWKR-UHFFFAOYSA-N
SMILES S=P(OCC)(OCC)Oc1nn2cc(c(nc2c1)C)C(=O)OCC
Properties
Chemical formula	C14H20N3O5PS
Molar mass	373.36 g·mol−1
Appearance	Green to brown solid[2]
Density	1.348 g/cm3[2]
Melting point	51 to 52 °C (124 to 126 °F; 324 to 325 K)[2]
Boiling point	decomposes at 160 °C[2]
Solubility in water	4.2 mg/L[2]
Hazards
Flash point	32 to 36 °C (90 to 97 °F; 305 to 309 K)[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Uses

Pyrazophos is a systemic fungicide which is used in orchards, vineyards and vegetable crops against powdery mildew. In some instances, the compound is also an effective insecticide (e.g. against leaf-miner flies).^[3]

History

The compound has been commercially available since 1970.^[1]