Glucosamine sulfate is a specialty chemical, specifically an amino sugar derivative (chemical formula: C₆H₁₃NO₅ · H₂SO₄), widely used in the pharmaceutical and nutraceutical industries as an intermediate for producing dietary supplements. It supports joint health by promoting cartilage formation and repair, particularly in osteoarthritis treatments. As a reagent, it helps reduce joint pain, improve mobility, and slow cartilage degeneration. It is often combined with chondroitin in formulations. Available in high-purity forms for manufacturing, such as powders, with analytical confirmation via IR and NMR spectra.