... 3,4,5-Trihydroxy-1-Cyclohexene-1-Carboxylic Acid; 3,4,5-Trihydroxy-1- cyclohexene carboxylic acidFormula ... at 20ºC: 18g/100mlAssay by HPLC: purity 98% min.Ash: 0.5% max.Loss on drying ... acids, and indole derivatives. also widely used as a chiral building block for the synthesis of pharmaceuticals. ... end product is an antiviral drug oseltamivir(tamiflu),a neuraminidase inhibitor used in the treatment and ...