Norfloxacin is a first generation synthetic fluoroquinolone antibiotic and is sparingly soluble in aqueous solution at 1mg/mL.
CAS Number
70458-96-7
Molecular Formula
C16H18FN3O3
Molecular Weight
319.33
Mechanism of Action
Norfloxacin indirectly inhibits DNA gyrase by binding to nearby DNA substrate. DNA gyrase is an essential DNA replication enzyme which reduces DNA strain during active DNA replication. Norfloxacin is most active in the pH range between 4.5 and 6.5.
Storage Conditions
2-8°C
Tariff Code
2933.59.3600
Spectrum
Norfloxacin is a broad spectrum antibiotic commonly used to target bacteria responsible for urinary tract infections.
Form
Powder
Appearance
White to light-yellow crystalline powder
Source
Synthetic
Impurity Profile
Impurity A| 7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid||||
Impurity D| 1-Ethyl-6-fluoro-7-(piperazin-1-yl)quinolin-4(1H)-one||||
Impurity G| 1-Ethyl-6-fluoro-7-(4-formylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid 1-Ethyl-6-fluoro-7-(4-formylpiperazin-1-yl)-4-oxo-1,4-dihydro||||
Impurity F| Chloro analogue of Norfoxacin||||
Melting Point
220-221°C
Assay
(On Dried Basis): 99.0-101.0%
Loss on Drying
≤1.0%
TOKU-E植物生物学植物生物学,基因工程,改变植物生长特性。植物生物学是指植物的科学和研究。植物的特性和生长可以通过多种方式进行改变,包括基因工程和各种生长调节剂或激素的使用。可以通过农杆菌介导的转化或其他方法将DNA导入植物, 其中将质粒上的目标基因从农杆菌 细胞中转移 并整合到植物组织中。植物还易受细菌和真菌性植物病原体的侵害,而使用低毒性抗生素 和 抗真菌药可以控制或消除这些病原体 。