(±)-1-Phenyl D5-Ethanol, also known as deuterium-labeled phenyl ethanol, has several applications in bulk, particularly in the field of scientific research and pharmaceuticals. Some of its notable applications include:

1. Pharmacokinetic Studies: This compound is often used in the pharmaceutical industry as a tracer molecule in pharmacokinetic studies. Its deuterium-labeled structure allows researchers to track the absorption, distribution, metabolism, and excretion of drugs and other compounds in biological systems, providing valuable data for drug development.

2. Metabolic Labeling: (±)-1-Phenyl D5-Ethanol can be used to label metabolites in vivo or in vitro. This labeling technique aids in the identification and quantification of specific metabolic pathways, helping researchers understand how various substances are processed within biological systems.

3. Isotope Tracing: The deuterium atoms in this compound can serve as tracers in chemical reactions. It is employed to investigate reaction mechanisms, study the kinetics of chemical processes, and identify the fate of deuterium-labeled compounds in chemical transformations.

4. NMR Spectroscopy: Deuterium-labeled compounds are often used in nuclear magnetic resonance (NMR) spectroscopy to obtain precise structural information about molecules. (±)-1-Phenyl D5-Ethanol can be a valuable tool in NMR experiments, aiding in the determination of molecular structures and elucidating complex chemical interactions.

5. Drug Metabolism Studies: Pharmaceutical companies use deuterium-labeled compounds like (±)-1-Phenyl D5-Ethanol to investigate the metabolic pathways of drugs in humans and animals. This information is crucial for understanding drug safety and efficacy profiles.

6. Chemical Research: In synthetic chemistry, (±)-1-Phenyl D5-Ethanol can be used as a building block or reagent in the synthesis of other compounds, especially when deuterium substitution is desirable for specific applications.

7. Environmental Studies: Deuterium-labeled compounds can be used as tracers in environmental studies to investigate the fate and transport of chemicals in natural systems, including groundwater flow and pollutant dispersion.

8. Analytical Chemistry: (±)-1-Phenyl D5-Ethanol can be employed as an internal standard in analytical techniques like mass spectrometry, ensuring accurate and precise quantification of analytes in complex samples.

In bulk, the availability of (±)-1-Phenyl D5-Ethanol is essential for these applications, as it enables researchers and industries to conduct experiments, develop drugs, and gain insights into various chemical and biological processes with the advantages of deuterium labeling.