Pharmaceutical Intermediates Supplier

Rays Biotech is a leading pharmaceutical intermediates supplier, providing high-quality intermediates essential for the synthesis of active pharmaceutical ingredients (APIs). Our intermediates are used by global and domestic pharmaceutical companies in manufacturing antibiotics, antivirals, cardiovascular drugs, and more. Each product is sourced from audited factories and complies with international standards for safety, efficacy, and traceability. Our extensive catalog includes both generic and custom intermediates, along with full regulatory support such as COA, MSDS, GMP documentation, and audit assistance. Whether you’re scaling up or developing a new molecule, we’re here to support you.