Carboxylic Acid

13148-83-9

13148-83-9

156703

3-甲氧羰基环己酮

100501-62-0

100501-62-0

119097

1-乙基-6,7,8-三氟-1,4-二氢-4-氧代-3-喹啉甲酸乙酯

4940-39-0

4940-39-0

134262

4-苯并吡喃酮-2-羧酸

127199-27-3

127199-27-3

104634

8-氯-6,7-二氟-1-[(1R,2S)-2-氟环丙基]-1,4-二氢-4-氧代-3-喹啉羧酸

81357-18-8

81357-18-8

214528

4-氧代-1,2-哌啶二羧酸 1-叔丁酯 2-甲酯

32510-61-5

32510-61-5

274690

头孢唑啉杂质D

93107-08-5

93107-08-5

212693

1-环丙基-6-氟-1,4-二氢-4-氧代-7(1-哌嗪基)-3-喹啉羧酸盐酸盐

149057-19-2

149057-19-2

219301

N-1-Boc-N-4-Cbz-2-哌嗪甲酸

548762-66-9

548762-66-9

263357

(2S,5R)-1-N-BOC-2,5-二甲基哌嗪

764659-72-5

764659-72-5

224562

(2R,5S)-5-(4-氨基-5-氟-2-氧代-1(2H)-嘧啶基)-1,3-噁噻烷-2-羧酸 (1R,2S,5R)-5-甲基-2-(1-甲基乙基)环己酯

496786-98-2

496786-98-2

127337

4-[5-(4,4,5,5-四甲基-1,3,2-DIOXABOROLAN-2-基)哌啶-2-基]哌嗪-1-羧酸叔丁酯

69739-16-8

69739-16-8

121072