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Pharmaceutical research and development; Scientific research and development; Consultation in the field of pharmaceutical research and development; Product research and development; Chemical laboratories; Chemical research; Chemical analysis; pharmaceutical research services, namely, mass spectrometry-based pharmacokinetics and pharmacodynamics (PK/PD) for drug metabolite profiling, drug metabolite identification, and drug metabolite quantitation; pharmaceutical product evaluation, namely, mass spectrometry-based pharmacokinetics and pharmacodynamics (PK/PD) for drug metabolite profiling, drug metabolite identification, and drug metabolite quantitation; pharmaceutical research services, namely, Mass spectrometry-based pharmacokinetics and pharmacodynamics (PK/PD) for biomarker profiling; pharmaceutical product evaluation, namely, mass spectrometry-based pharmacokinetics and pharmacodynamics (PK/PD) for biomarker profiling; Executing of chemical analyses; Scientific research, namely, conducting clinical trials; Testing of pharmaceuticals