Pharmaceutical Secondary Standard; Certified Reference Material

Ciprobay, 1-Cyclopropyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
MDL number:
PubChem Substance ID:

Quality Level


certified reference material
pharmaceutical secondary standard




current certificate can be downloaded


HPLC: suitable
gas chromatography (GC): suitable

Featured Industry

Pharmaceutical (small molecule)



pharmacopeia traceability

traceable to PhEur Y0000198
traceable to USP 1134313

SMILES string




InChI key


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General description

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
Ciprofloxacin is grouped under the class of second generation of quinolone analogs of nalidixic acid that exhibits high potency, minimal toxicity and a broad-spectrum antibacterial activity. It can be administered both parenterally and orally. It finds applications in the treatment of broad range of infections of the urinary tract, respiratory tract and gastrointestinal tract, as well as skin and soft tissue infections.


These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.
Ciprofloxacin may be used as a pharmaceutical reference standard for the determination of the analyte in pharmaceutical formulations and serum samples by various chromatography techniques.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Other Notes

Values of analytes vary lot to lot.
This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.


To see an example of a Certificate of Analysis for this material enter LRAA6508 in the slot below. This is an example certificate only and may not be the lot that you receive.


13 - Non Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Flow injection spectrophotometric and chromatographic determination of ciprofloxacin and norfloxacin in pharmaceutical formulations.
Al-Momani I, et al.
Journal of Flow Injection Analysis, 25(2), 151-151 (2008)
The simultaneous separation and determination of five quinolone antibotics using isocratic reversed-phase HPLC: Application to stability studies on an ofloxacin tablet formulation
Shervington LA, et al.
Journal of Pharmaceutical and Biomedical Analysis, 39(3-4), 769-775 (2005)
Quantitative determination of ciprofloxacin and norfloxacin in pharmaceutical preparations by high performance liquid chromatography.
Kassab N, et al.
Brazilian Journal of Pharmaceutical Sciences , 41(4), 507-513 (2005)
Elisabet Marti et al.
Water research, 61, 67-76 (2014-06-02)
In this study we characterised the ciprofloxacin-resistant strains isolated in biofilm and sediments from a wastewater treatment plant (WWTP) discharge point and its receiving river. We also examined the prevalence of qnrA, qnrB, qnrS and aac(6')-Ib-cr genes in these isolates...
Direct determination of four fluoroquinolones, enoxacin, norfloxacin, ofloxacin, and ciprofloxacin, in pharmaceuticals and blood serum by HPLC.
Samanidou VF, et al.
Analytical and Bioanalytical Chemistry, 375(5), 623-629 (2003)

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