Ciprofloxacin

Ciprofloxacin

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Ciprofloxacin
Category Antibiotics
Catalog number BBF-04539
CAS 85721-33-1
Molecular Weight 331.34
Molecular Formula C17H18FN3O3
Purity >98%

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Description

Ciprofloxacin is a fluoroquinolone antibiotic, shows broad and potent antibacterial activity, with MIC90 of 0.024-6 μM. It is active against a variety of Gram-positive and Gram-negative bacteria in vitro, including S. aureus, L. monocytogenes, P. aeruginosa, Legionella, N. gonorrhoeae and H. pylori.

Specification

Related CAS 93107-08-5 (hydrochloride)
Synonyms 1-Cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarboxylic Acid; Bay q 3939; Ciflafin; Ciprine; Cipro IV; Ciprofloxacillin; Ciprobay; Fimoflox; Ipiflox; Probiox
Storage Store at -20°C
IUPAC Name 1-cyclopropyl-6-fluoro-4-oxo-7-piperazin-1-ylquinoline-3-carboxylic acid
Canonical SMILES C1CC1N2C=C(C(=O)C3=CC(=C(C=C32)N4CCNCC4)F)C(=O)O
InChI InChI=1S/C17H18FN3O3/c18-13-7-11-14(8-15(13)20-5-3-19-4-6-20)21(10-1-2-10)9-12(16(11)22)17(23)24/h7-10,19H,1-6H2,(H,23,24)
InChI Key MYSWGUAQZAJSOK-UHFFFAOYSA-N
Source Synthetic

Properties

Appearance White Solid
Antibiotic Activity Spectrum Gram-positive bacteria; Gram-negative bacteria
Boiling Point 581.8±50.0°C (Predicted)
Melting Point 253-255°C (dec.)
Density 1.461±0.06 g/cm3 (Predicted)
Solubility Slightly soluble in DMSO (Heated), Methanol (Heated)
LogP 0.28

Toxicity

Carcinogenicity No indication of carcinogenicity to humans (not listed by IARC).
Mechanism Of Toxicity The bactericidal action of ciprofloxacin results from inhibition of the enzymes topoisomerase II (DNA gyrase) and topoisomerase IV, which are required for bacterial DNA replication, transcription, repair, strand supercoiling repair, and recombination.

Reference Reading

1.Urinary tract physiological conditions promote ciprofloxacin resistance in low-level quinolone resistant Escherichia coli.
Martín-Gutiérrez G1, Rodríguez-Beltrán J2, Rodríguez-Martínez JM3, Costas C2, Aznar J1, Pascual Á4, Blázquez J5. Antimicrob Agents Chemother. 2016 May 2. pii: AAC.00602-16. [Epub ahead of print]
Escherichia coli isolates carrying chromosomally-encoded low-level quinolone resistant (LLQR) determinants are frequently found in urinary tract infections (UTI). LLQR mutations are considered the first step in the evolutionary pathway producing high-level fluoroquinolone resistance. Therefore, their evolution and dissemination might influence the outcome of fluoroquinolone treatments of UTI. Previous studies support the notion that low urine pH decreases susceptibility to ciprofloxacin in E. coli However, the effect of the urinary tract physiological parameters on the activity of ciprofloxacin against LLQR E. coli strains has received little attention. We have studied the activity of ciprofloxacin under physiological urinary tract conditions against a set of well-characterized isogenic E. coli derivatives carrying the most prevalent chromosomal mutations (ΔmarR, gyrA-S83L, gyrA-D87N and parC-S80R and some combinations). The results presented here demonstrate that all the LLQR strains studied become resistant to ciprofloxacin (according to CLSI) under physiological conditions whereas the control strain lacking LLQR mutations does not.
2.Involvement of antibiotic efflux machinery in glutathione-mediated decreased ciprofloxacin activity in Escherichia coli.
Goswami M1, Subramanian M2, Kumar R3, Jass J3, Jawali N4. Antimicrob Agents Chemother. 2016 May 2. pii: AAC.00414-16. [Epub ahead of print]
We have analyzed the contribution of different efflux components towards glutathione-mediated abrogation of ciprofloxacin's activity in Escherichia coli and underlying potential mechanism(s) behind this phenomenon. The results indicated that glutathione increased the total active efflux thereby partially contributing towards glutathione-mediated neutralization of ciprofloxacin's antibacterial action in E. coli. However, the role of glutathione-mediated increased efflux becomes evident in the absence of functional TolC-AcrAB efflux pump.

Spectrum

Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive

Experimental Conditions

Ionization Mode: Positive
Ionization Energy: 70 eV
Chromatography Type: Gas Chromatography Column (GC)
Instrument Type: Single quadrupole, spectrum predicted by CFM-ID(EI)
Mass Resolution: 0.0001 Da
Molecular Formula: C17H18FN3O3
Molecular Weight (Monoisotopic Mass): 331.1332 Da
Molecular Weight (Avergae Mass): 331.3415 Da

LC-MS/MS Spectrum - LC-ESI-qTof , Positive

Experimental Conditions

Instrument Type: LC-ESI-qTof
Ionization Mode: Positive

Predicted LC-MS/MS Spectrum - 10V, Positive

Experimental Conditions

Ionization Mode: Positive
Collision Energy: 10 eV
Instrument Type: QTOF (generic), spectrum predicted by CFM-ID
Mass Resolution: 0.0001 Da
Molecular Formula: C17H18FN3O3
Molecular Weight (Monoisotopic Mass): 331.1332 Da
Molecular Weight (Avergae Mass): 331.3415 Da

13C NMR Spectrum

Experimental Conditions

Solvent: D2O
Nucleus: 13C
Frequency: 100

Bio Calculators

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Tip: Chemical formula is case sensitive. C22H30N4O c22h30n40
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