Morpholine / NMOR Starting material

Morpholine, also known as Tetrahydro-1,4-oxazine, is a versatile heterocyclic secondary amine widely used as a starting material, solvent, reagent, and intermediate in pharmaceutical and chemical synthesis. It has the molecular formula C4H9NO, a molecular weight of 87.12 g/mol, and is associated with CAS No. 110-91-8. Due to its secondary amine structure, morpholine has the potential to undergo nitrosation in the presence of nitrite sources under acidic or nitrosating conditions, forming the nitrosamine impurity N-Nitrosomorpholine (NMOR) a compound of significant toxicological concern.

While Morpholine itself is not a nitrosam ine, its nitrosated derivative N-Nitrosomorpholine (NMOR) is classified by the USFDA Carcinogenic Potency Categorization Approach (CPCA) as a Potency Category 1 nitrosamine, with a strict acceptable intake limit of 26.5 ng/day. Regulatory bases including USFDA, EMA, and ICH M7 require manufacturers to evaluate the potential for NMOR formation, assess nitrosation-prone steps, prevent introduction of nitrite contaminants, and implement high-sensitivity analytical methods (LC-MS/MS, GC-MS) to ensure control at trace levels. Morpholine is commonly used in the production of APIs, intermediates, corrosion inhibitors and surfactants. In pharmaceutical manufacturing, its relevance lies in its function as a nitrosamine precursor, requiring stringent control of pH, raw-material quality, environmental conditions, and nitrite contamination to ensure safe and compliant API production.

Manasa Life Sciences manufactures nitrosamine impurities in Hyderabad, India, and supplies products to markets across Asia, Europe, Africa, the GCC, and the UAE, ensuring reliable delivery, full traceability, and Good Documentation Practices (GDP) for nitrosamine impurities. And also we support complete nitrosamine-control readiness by supplying certified nitrosamine impurity reference standards, conducting in-depth risk assessments, and developing and validating ultra-sensitive LC-MS/MS and GC-MS analytical methods. Our solutions enable accurate detection, quantification, and control of nitrosamine impurities whether theoretical, synthesis-related, or degradation-derived helping manufacturers meet USP-relevant expectations, maintain strict global regulatory compliance, and safeguard patient safety.