The quest for cleaner and more efficient combustion in internal combustion engines has led to the exploration of various fuel additives. Among these, N-Methylaniline (NMA), identified by CAS 100-61-8, has emerged as a compound with significant potential, particularly as an octane booster for gasoline. Engine knock, a detrimental phenomenon caused by premature detonation of the air-fuel mixture, can be effectively mitigated by increasing the octane rating of gasoline. N-Methylaniline contributes to this by slowing down the combustion process. When introduced into gasoline, NMA molecules interact with free radicals during combustion, delaying the auto-ignition of the fuel. This controlled combustion leads to smoother engine operation, reduced wear, and improved fuel efficiency. This makes N-Methylaniline a valuable component for fuel manufacturers seeking to enhance the performance of their products. Compared to older additives like tetraethyl lead (TEL) or methyl tertiary butyl ether (MTBE), NMA presents a more favorable environmental and health profile. Its biodegradability and lack of heavy metal content make it a more sustainable option for the petroleum industry. Therefore, the ability to purchase N-Methylaniline from trusted suppliers is becoming increasingly important for refineries and fuel distributors globally. As the automotive sector continues to evolve, the role of compounds like N-Methylaniline in optimizing fuel performance and reducing environmental impact is likely to grow, highlighting its significance beyond traditional chemical synthesis.