CAS Registry Number

CAS 104-90-5 — 5-Ethyl-2-methylpyridine (5-Ethyl-2-picoline)

5-Ethyl-2-methylpyridine, also known as 5-Ethyl-2-picoline, is a heterocyclic organic compound used as a chemical intermediate in the synthesis of pharmaceuticals, agrochemicals, and specialty materials. It is a clear, colorless to pale yellow liquid with a characteristic odor. Available in high purity, it has a CAS number of 104-90-5, molecular formula C8H11N, and molecular weight of 121.18 g/mol. Stored at ambient temperature, it is classified as a hazardous substance with a signal word of Danger. Molekula supplies 5-Ethyl-2-methylpyridine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.