Used primarily in research and development, this compound serves as a stable isotope-labeled version of balsalazide, aiding in pharmacokinetic and metabolic studies. It helps scientists trace and analyze the behavior of balsalazide in biological systems without altering its chemical properties. This is particularly useful in understanding drug absorption, distribution, metabolism, and excretion in the development of treatments for inflammatory bowel diseases like ulcerative colitis. Its labeled structure ensures accurate detection and measurement in complex biological matrices.