四环素类抗生素( 四环素母核
tetracycline antibiotics)是由放线菌产生的一类广谱抗生素，包括金霉素(chlotetracycline)、土霉素(oxytetracycline)、四环素(tetracycline)及半合成衍生物甲烯土霉素、强力霉素、二甲胺基四环素等，其结构均含并四苯基本骨架。

货号            中文名                                            英文名                                                       包装

31741     四环素盐酸盐                          Tetracycline hydrochloride                           250mg

37918     4-差向四环素                           4-Epitetracycline hydrochloride                  100mg

37919     脱水四环素盐酸盐                   Anhydrotetracycline hydrochloride             100mg

37921     4-差向脱水四环素盐酸盐       4-Epianhydrotetracycline hydrochloride    100mg

46598     土霉素盐酸盐                            Oxytetracycline hydrochloride                     250mg

46133      金霉素盐酸盐                          Chlortetraycline hydrochloride                     250mg

46161      去甲基金霉素盐酸盐水合物   Demeclocyline hydrochloride hydrate       100mg

33429      强力霉素盐酸盐                       Doxycycline hyclate                                       100mg

37906      甲烯土霉素盐酸盐                   Methacycline hydrochloride                          100mg