深圳遠(yuǎn)揚(yáng)化學(xué)可提供阿法替尼申報(bào)所用全套雜質(zhì)， 隨貨附CoA證書(shū)，HNMR，MS，HPLC圖譜，純度符合申報(bào)要求，西他沙星雜質(zhì)為我司優(yōu)勢(shì)雜質(zhì)，長(zhǎng)期備有庫(kù)存，發(fā)貨快。如需西他沙星雜質(zhì)相關(guān)詳細(xì)信息，歡迎我司業(yè)務(wù)人員獲取。

西他沙星（sitafloxacin hydrate）化學(xué)名為7-[(7S)-7- 氨基-5-氮雜螺[2.4]庚-5-基]-8- 氯-6- 氟-1-[(1R,2S)-cis-2-氟環(huán)丙基]-1,4-二氫-4-氧代-3-喹啉羧酸，是*制藥三共株式會(huì)社（Daiichi Sankyo）開(kāi)發(fā)的一廣譜喹諾酮類(lèi)抗菌藥，臨床用其一水合物，用于治療嚴(yán)重難治性感染性疾病。

 除自主品牌雜質(zhì)對(duì)照品外，我司還代理英國(guó)NIBSC標(biāo)準(zhǔn)品，美國(guó)劍橋CIL同位素標(biāo)準(zhǔn)品，美國(guó)NIST標(biāo)準(zhǔn)物質(zhì)，歐洲標(biāo)準(zhǔn)局IRMM標(biāo)準(zhǔn)物質(zhì)，加拿大TRC標(biāo)準(zhǔn)品，TLC標(biāo)準(zhǔn)品，MOLCAN標(biāo)準(zhǔn)品，NRC標(biāo)準(zhǔn)品等，歡迎洽談。

Sitafloxacin

7-((S)-7-amino-5-azaspiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1R,2S)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 1

8-chloro-6,7-difluoro-1-((1S,2R)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 2

8-chloro-6,7-difluoro-1-((1R,2R)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 3

8-chloro-6,7-difluoro-1-((1S,2S)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 4

7-((S)-7-amino-5-azaspiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1S,2R)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 5

7-((R)-7-amino-5-azaspiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1S,2R)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 6

7-((R)-7-amino-5-azaspiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1R,2R)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 7

7-((S)-7-amino-5-azaspiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1S,2S)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 8

7-((R)-7-amino-5-azaspiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1S,2S)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 9

7-((S)-7-amino-5-azaspiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1R,2R)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 10

7-((R)-7-amino-5-azaspiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1R,2S)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

Sitafloxacin Impurity 11

7-(7-amino-5-azaspiro[2.4]heptan-5-yl)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid