title: Colorimetric estimation of pilocarpine in drug preparations.
mesh_terms: D001565:Benzoates; D002855:Chromatography, Thin Layer; D003124:Colorimetry; D005557:Formaldehyde / Q000032:analysis; D008722:Methods; D010084:Oxidation-Reduction; D010545:Peroxides; D010862:Pilocarpine / Q000032:analysis*
chemical_list: D001565:Benzoates; D010545:Peroxides; D010862:Pilocarpine; D005557:Formaldehyde