Employing lonization Behaviors to Resolve a Trace-Level Impurity: Determination of l,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedi-carboxylic Acid Di-2-[methyl-(phenylmethyl)amino]ethyl Ester in Nicardipine Drug Substance
- 1 January 1992
- journal article
- Published by Springer Nature in Pharmaceutical Research
- Vol. 9 (11), 1518-1520
- https://doi.org/10.1023/a:1015887602779