Chemical Name: 5-butyl-2-(ethylamino)-6-methyl-4(1H)-pyrimidinone

Formula: C₁₁H₁₉N₃O

Molecular Weight: 209.29

CAS No.: 23947-60-6

Appearance:Colorless crystalline solid.

Melting Point: 159-160°C.

Vapour Pressure: 0.27mPa(25°C).

Stability: Soluble in water 0.2g/L at room tempreature, insoluble in acetone, micro-soluble in ethanol, soluble in chloroform, trichloroethane, strong acid and alkali. Stable in acid, alkali and hot medium.

Specification: 95%TC, 25%SC

Uses: ethirimol is a systemic fungicide, effect on powdery mildew in grain and other field crop.