2-Methyl-.alpha.-propylaminopropionanilide 721-50-6 Astra 1512 Astra 1515 Citanest L 67 NSC40027 Prilocaine Propanamide, N-(2-methylphenyl)-2-(propylamino)- Propitocaine o-Methyl-2-propylaminopropionanilide o-Propionotoluidide, 2-(propylamino)- o-Propionotuluidide, 2-propylamino-