英文别名3-Butoxy-4-aminobenzoic acid; Benzoic acid,4-amino-3-butoxy; Oxybuprocaine Impurity 2; Oxybuprocaine EP Impurity B; Benzoic acid, 4-amino-3-butoxy-; Benoxinate Hydrochloride Impurity B; Oxybuprocaine Hydrochloride Impurity B; Oxybuprocaine Hydrochloride EP Impurity B 
