Active ingredient: Fenobucarb
Other name: 'Osbac' (Sumitomo); 'Merlin' (Nagarjuna Agrichem); 'Vibasa' (Vipesco)
Formulation: Fenobucarb 15% CS
IUPAC name: 2-sec-butylphenyl methylcarbamate
CAS No.: 3766-81-2
Molecular weight: 207.3
Molecular formula: C12H17NO2
Structural formula: 
Mode of action: Non-systemic insecticide with contact action.
Uses: Control of leafhoppers, planthoppers, thrips, and weevils on rice, tea, sugar cane, wheat, cucurbits, aubergines, and capsicums. Control of bollworms and aphids on cotton, at 0.5-1.0 kg/ha; control of leafhoppers, at 0.6-1.2 kg/ha.