1.  Common name: Isoprothiolane

2.  Chemical names: bis(1-methylethyl)-1,3-dithiolan-2-ylidenepropanedioate 

3.  Chemical class: unclassified fungicides

4.  Type of formulation: EC (emulsisfiable concentrate)

5.  Active ingredient and its content: 400g/L

6.  Structural formula:

7.  Chemical properties:

Molecular weight: 290.4 

Melting point: 54-54.5 °C;(tech., 50-51 °C) 

Boiling point: 167-169 °C/0.5 mmHg 

Vapor pressure: 18.8 mPa (25 °C) 

KOW logP = 3.3 (25 °C) 

Henry 0.1 Pa m3 mol-1 (calc.) 

S.g./density: 1.044 

Solubility In water: 54mg/l (25 °C). In methanol: 1510, ethanol: 760, acetone: 4060, chloroform: 4130,benzene: 2770, n-hexane: 10 (all in g/l,25 °C). 

Stability Stable toacid, alkali, light and heat. 

8.  Toxic class (WHO): Slightly hazardous (III)

9.  CAS registry number: 50512-35-1

10. Appearance:  yellow to brown homogeneous liquid.

11. Applications:

Modeof action Systemic fungicide with protective andcurative action, absorbed by the leaves and roots, with translocationacropetally and basipetally.

Uses Controls the following pathogens and insect pests: Pyricularia oryzae, Helminthosporium sigmoideum, Leptosphaeria salvinii, Fusarium nivale on rice; Rosellinia necatrix on pome fruit, stone fruit andgrapes; Delphacidae (planthoppers) on rice. Also used on rice to acceleraterooting, promote root elongation and control non-parasitic damping-off.  

Target disease and rate