Cyprodynil; 4-cyclopropyl-6-methyl-N-phenylpyrimidin-2-amine

4-cyclopropyl-6-methyl-N-phenylpyrimidin-2-amine

C₁₄H₁₅N₃

Form Fine beige powder, with a weak odour.

Melting point 75.9℃.

Density 1.21 (20℃).

Solubility In water 20 (pH 5.0), 13 (pH 7.0), 15 (pH 9.0) (all in mg/l, 25℃). In ethanol 160, acetone 610, toluene 440, n-hexane 26, n-octanol 140 (all in g/l, 25℃).

Oral Acute oral LD50 for rats >2000 mg/kg.

Skin and eye Acute percutaneous LD50 for rats >2000 mg/kg.

Non-irritant to eyes and skin (rabbits). Skin sensitiser (guinea pigs).

Inhalation LC50 (4 h) for rats >1200 mg/m3 air.

As a foliar fungicide for use in cereals, grapes, pome fruit, stone fruit, strawberries, vegetables, field crops and ornamentals; and as a seed dressing on barley.