Nisoldipine D4 (CAS 1219795-47-7) is a deuterated impurity relevant to quality control and analytical characterization of nisoldipine formulations. The D4 label produces distinct mass spectral and NMR shifts enabling unambiguous identification in LC-MS and 1H/2H NMR assays. Typical specifications include defined isotopic enrichment, measured purity by HPLC, and documented retention time under reversed-phase conditions. Stability under ambient and accelerated conditions, solubility in common organic solvents, and batch-to-batch consistency are provided to support impurity profiling and method validation. Comprehensive certificate of analysis and traceable documentation facilitate regulatory compliance and robust analytical workflows.
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The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
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