Norfloxacinisafirstgenerationsyntheticfluoroquinoloneantibioticandissparinglysolubleinaqueoussolutionat1mg/mL.
CASNumber
70458-96-7
MolecularFormula
C16H18FN3O3
MolecularWeight
319.33
MechanismofAction
NorfloxacinindirectlyinhibitsDNAgyrasebybindingtonearbyDNAsubstrate.DNAgyraseisanessentialDNAreplicationenzymewhichreducesDNAstrainduringactiveDNAreplication.NorfloxacinismostactiveinthepHrangebetween4.5and6.5.
StorageConditions
2-8°C
TariffCode
2933.59.3600
Spectrum
NorfloxacinisabroadspectrumantibioticcommonlyusedtotargetbacteriaresponsIBLeforurinarytractinfections.
Form
Powder
Appearance
Whitetolight-yellowcrystallinepowder
Source
Synthetic
ImpurityProfile
ImpurityA|7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylicAcid||||ImpurityD|1-Ethyl-6-fluoro-7-(piperazin-1-yl)quinolin-4(1H)-one||||ImpurityG|1-Ethyl-6-fluoro-7-(4-formylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylicAcid1-Ethyl-6-fluoro-7-(4-formylpiperazin-1-yl)-4-oxo-1,4-dihydro||||ImpurityF|ChloroanalogueofNorfoxacin||||
MeltingPoint
220-221°C
Assay
(OnDriedBasis):99.0-101.0%
LossonDrying
≤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 。