Cefquinome Sulfate

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Chemical Structure| 118443-89-3 同义名 : 硫酸头孢喹肟 ;Cefquinome (sulfate);HR 111V sulfate
CAS号 : 118443-89-3
货号 : A306679
分子式 : C23H26N6O9S3
纯度 : 97%
分子量 : 626.68
MDL号 : MFCD11864966
存储条件:

Pure form Keep in dark place,Inert atmosphere,2-8°C

In solvent -20°C:3-6个月-80°C:12个月

溶解度 :

DMSO: 120 mg/mL(191.48 mM),配合低频超声助溶,注意:DMSO长时间开封后,会吸水并导致溶解能力下降,请避免使用长期开封的DMSO

H2O: 2 mg/mL(3.19 mM),配合低频超声助溶

动物实验配方:
生物活性
描述 Cefquinome Sulfate (CS) is a fourth-generation cephalosporin, which has been developed solely for veterinary use[3]. Cefquinome inhibited members of the Enterobacteriaceae at less than or equal to 0.5 microgram/ml for Escherichia coli, Klebsiella pneumoniae, K. oxytoca, Citrobacter diversus, Salmonella Shigella, Proteus mirabilis, Morganella, and Providencia. Overall, the in vitro activity of cefquinome was comparable with aminothiazolyl cephalosporins. It inhibited some Enterobacter and Citrobacter freundii resistant to ceftazidime as did cefpirome and cefepime[4]. Cefquinome (88.8mg cefquinome sulphate per 8mL) was administered by the intramammary route to all quarters and/or "systemically" via the perfusion fluid at concentrations similar to those measured in plasma following intramuscular administration of 1mg cefquinome per kg body weight. For the treatment of acute mastitis a combination of both intramammary and systemic administration is likely to be advantageous in order to rapidly produce maximum cefquinome concentrations in all regions of the udder[5]. Lower doses of cefquinome can be administered as aerosols providing high local drug concentrations in lung, but additional optimization of formulation is needed to improve distribution and persistence in lung[6].
实验方案
1mg 5mg 10mg

1 mM

5 mM

10 mM

1.60mL

0.32mL

0.16mL

7.98mL

1.60mL

0.80mL

15.96mL

3.19mL

1.60mL

参考文献

[1]Yehia AM, Arafa RM, et al. Stability Study and Kinetic Monitoring of Cefquinome Sulfate Using Cyclodextrin-Based Ion-Selective Electrode: Application to Biological Samples. J AOAC Int. 2016 Jan-Feb;99(1):73-81.

[2]Zonca A, Gallo M, et al. Cefquinome sulfate behavior after intramammary administration in healthy and infected cows. J Dairy Sci. 2011 Jul;94(7):3455-61.

[3]Fu Q, Fu HL, Huan L, Zhang W, Shu G, Liu MJ, Deng FY, Hu J. Preparation of cefquinome sulfate proliposome and its pharmacokinetics in rabbit. Iran J Pharm Res. 2013 Fall;12(4):611-21

[4]Chin NX, Gu JW, Fang W, Neu HC. In vitro activity of cefquinome, a new cephalosporin, compared with other cephalosporin antibiotics. Diagn Microbiol Infect Dis. 1992 May-Jun;15(4):331-7

[5]Ehinger AM, Schmidt H, Kietzmann M. Tissue distribution of cefquinome after intramammary and "systemic" administration in the isolated perfused bovine udder. Vet J. 2006 Jul;172(1):147-53

[6]Winther L, Baptiste KE, Friis C. Antimicrobial disposition in pulmonary epithelial lining fluid of horses, part III. cefquinome. J Vet Pharmacol Ther. 2011 Oct;34(5):482-6