用途：科研试剂，广泛应用于分子生物学，药理学等科研方面。本品具有广谱抗菌作用，抗菌作用强，对多数肠杆菌科细菌，如大肠埃希菌、克雷伯菌属、变形杆菌属、沙门菌属、志贺菌属和流感嗜血杆菌、嗜肺军团菌、淋病奈瑟菌等革兰阴性菌有较强的抗菌活性。对金黄色葡萄球菌、肺炎链球菌、化脓性链球菌等革兰阳性菌和肺炎支原体、肺炎衣原体也有抗菌作用，但对厌氧菌和肠球菌的作用较差。
本品为氧氟沙星的左旋体，其体外抗菌活性约为氧氟沙星的两倍。其作用机制是通过抑制细菌DNA旋转酶的活性，阻止细菌DNA的合成和复制而导致细菌死亡（仅供参考）。
熔点214-216°C (lit.)；在冰醋酸中易溶，在0.1mol/L盐酸溶液中略溶，在水中微溶，在乙醇中难溶，在乙醚中不溶。

~grade   certified reference material
  pharmaceutical secondary standard
InChI Key   SUIQUYDRLGGZOL-RCWTXCDDSA-N
packaging   pkg of 1 g
pharmacopeia traceability   traceable to USP 1362103

~Analysis Note
These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.
General description
Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards
Other Notes
This product was designed, produced and verified for accuracy and stability in accordance with ISO/IEC 17025:2005 (AClass Cert AT-1467), ISO GUIDES 34:2009 (AClass Cert AR-1470).
Footnote
To see an example of a Certificate of Analysis for this material enter LRAA6963 in the Documents slot below. This is an example certificate only and may not be the lot that you receive.