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N9890

Supelco

Norfloxacin

analytical standard, ≥98% (TLC)

Synonym(s):

1-Ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarboxylic acid, 1-Ethyl-6-fluoro-1,4-dihydro-4-oxo-7-piperazino-3-quinolinecarboxylic acid

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About This Item

Empirical Formula (Hill Notation):
C16H18FN3O3
CAS Number:
70458-96-7
Molecular Weight:
319.33
EC Number:
274-614-4
MDL number:
MFCD00079532
UNSPSC Code:
41116107
PubChem Substance ID:
329818696
NACRES:
NA.24
Pricing and availability is not currently available.

grade

analytical standard

Quality Level

200

Agency

EPA 1694

Assay

≥98% (TLC)

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

application(s)

clinical testing

format

neat

storage temp.

2-8°C

SMILES string

CCN1C=C(C(O)=O)C(=O)c2cc(F)c(cc12)N3CCNCC3

InChI

1S/C16H18FN3O3/c1-2-19-9-11(16(22)23)15(21)10-7-12(17)14(8-13(10)19)20-5-3-18-4-6-20/h7-9,18H,2-6H2,1H3,(H,22,23)

InChI key

OGJPXUAPXNRGGI-UHFFFAOYSA-N

Gene Information

human ... CYP1A2(1544)
rat ... Gabra1(29705)

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General description

Chemical structure: fluoroquinolone
Norfloxacin is a broad spectrum antibiotic, which is used against a wide variety of gram positive and gram negative bacteria.[1]

Application

Norfloxacin may be used as a standard in the determination of norfloxacin in human serum samples using fluorometric spectrophotometry.[1]
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Biochem/physiol Actions

Norfloxacin blocks DNA replication by interfering with an ATP-induced structural transition of DNA complexed with DNA gyrase (topoisomerase).
Mode of action: inhibits bacterial DNA replication
Antimicrobial spectrum: Gram-negative bacteria; less effective against Gram-positive bacteria

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000227061
0000249280
0000249279
0000227061
0000249280

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Fluorescence reaction and complexation equilibria between norfloxacin and aluminium (III) ion in chloride medium
Djurdjevic.TP, et al.
Analytica Chimica Acta, 300, 253-259 (1995)
L M Cavaco et al.
Journal of clinical microbiology, 47(9), 2751-2758 (2009-07-03)
Fluoroquinolone resistance in members of the Enterobacteriaceae family is mostly due to mutations in the quinolone resistance-determining regions of the topoisomerase genes. However, transferable genes encoding quinolone resistance have recently been described. The current methods for susceptibility testing are not
Deepika Sharma et al.
European journal of medicinal chemistry, 44(6), 2347-2353 (2008-10-15)
In the present study, we have synthesized 2-(substituted phenyl)-1H-imidazole (1-12) and (substituted phenyl)-[2-(substituted phenyl)-imidazol-1-yl]-methanone (13-26) analogues and screened them for their antimicrobial activity against gram positive, gram negative and fungal species. The results of antibacterial study indicated that compounds 15
Lauren Becnel Boyd et al.
Antimicrobial agents and chemotherapy, 53(1), 229-234 (2008-10-08)
Fluoroquinolones are some of the most prescribed antibiotics in the United States. Previously, we and others showed that the fluoroquinolones exhibit a class effect with regard to the CLSI-established breakpoints for resistance, such that decreased susceptibility (i.e., an increased MIC)
Anita Reinhardt et al.
Antimicrobial agents and chemotherapy, 51(4), 1341-1350 (2007-01-31)
Intubated patients frequently become colonized by Pseudomonas aeruginosa, which is subsequently responsible for ventilator-associated pneumonia. This pathogen readily acquires resistance against available antimicrobials. Depending on the resistance mechanism selected for, resistance might either be lost or persist after removal of
View All Related Papers

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Inhibition of Nucleic Acid Synthesis by Antibiotics

Explore how antibiotics, particularly quinolones, inhibit nucleic acid synthesis by targeting topoisomerases, crucial for DNA replication processes.

Inhibition of Nucleic Acid Synthesis by Antibiotics

Explore how antibiotics, particularly quinolones, inhibit nucleic acid synthesis by targeting topoisomerases, crucial for DNA replication processes.

Inhibition of Nucleic Acid Synthesis by Antibiotics

Explore how antibiotics, particularly quinolones, inhibit nucleic acid synthesis by targeting topoisomerases, crucial for DNA replication processes.

Inhibition of Nucleic Acid Synthesis by Antibiotics

Explore how antibiotics, particularly quinolones, inhibit nucleic acid synthesis by targeting topoisomerases, crucial for DNA replication processes.

Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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