100311-21-5 3-Amino-2-hydroxypropyl p-(butylamino)benzoate hydrochloride 4-Butylamino-benzoesaeure-gamma-amino-beta-hydroxy-propyl-ester hydrochlorid [German] BENZOIC ACID, p-(BUTYLAMINO)-, 3-AMINO-2-HYDROXYPROPYL ESTER, HYDROCHLORIDE Tussicain hydrochloride