Omkar Speciality Chemicals, a manufacturer and exporter of chemicals, said the company has filed application for the grant of Patent for preparing 4-BROMO-ORTHO-PHENYLENE-DIAMINE.

4-BROMO-ORTHO-PHENYLENE-DIAMINE is a key precursor for making of the drug namely Ledipasvir. Ledipasvir is a drug for the treatment of Hepatitis C.

Shares of the company gained Rs 0.5, or 0.32%, to settle at Rs 159.00. The total volume of shares traded was 63,610 at the BSE (Wednesday).