本品为白色或淡黄色结晶性粉末,味苦、无嗅,极易溶于丙酮、甲醇、二氯甲烷,略溶于乙醇、水,微溶于异丙醇、醋酸乙酯,几不溶于苯、乙醚、石油醚。该药为一毒性小、抗菌谱广、口服吸收良好、血浓度高的新型口服半合成青霉素。它由氨苄青霉素和溴苯酞缩合而成,在体内经酯酶水解成氨苄青霉素而起药效。本品首先由英国 Beecham 公司研制成功,此后日本相继研制,均有商品生产。国内已由华北药厂 This product is white or light yellow crystalline powder, bitter, odorless, easily soluble in acetone, methanol, methylene chloride, slightly soluble in ethanol, water, slightly soluble in isopropanol, ethyl acetate, Benzene, ether, petroleum ether. The drug is a small toxicity, broad antibacterial spectrum, good oral absorption, high blood concentration of new oral semi-synthetic penicillin. It is ampicillin and brominated phthalides condensation made by the esterase hydrolysis in vivo into ampicillin and efficacy. This product first developed by the British Beecham company, since then Japan have developed, all have commodity production. China has been from North China Pharmaceutical Factory