2-Methylprocaine hydrochloride 4-Amino-2-methylbenzoic acid 2-(diethylamino)ethyl ester hydrochloride 63917-79-3 BENZOIC ACID, 4-AMINO-2-METHYL-, 2-(DIETHYLAMINO)ETHYL ESTER, HYDROCHLORIDE Procaine, 2-methyl-, hydrochloride USAF EL-15