(3S)-10-Fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid
- CAS
- 117620-84-5
- Formula
- C13H10FNO4
- MW
- 263.22 g/mol
ZX-025377
Impurity reference standards
Levofloxacin impurity standards
Zemixal lists 25 reference materials related to Levofloxacin, covering the drug substance itself, its process impurities and the products it forms on storage. Among them are 9 pharmacopoeial impurities, 1 nitrosamine and 1 isotope-labelled standard.
25reference materials
9pharmacopoeial
1nitrosamines
1isotope labelled
Each lot ships with a certificate of analysis, and characterisation data such as 1H-NMR, mass spectrum and HPLC purity can be shared before you order. Typical uses are method development and validation, relative response factor work, forced degradation studies and the impurity sections of ANDA, DMF or CEP filings. The nitrosamine entries support ICH M7 risk assessments and confirmatory testing at trace levels.
By impurity type
Pharmacopoeial9EP, USP, BP or JP named impurities
Nitrosamines1N-nitroso impurities for ICH M7 work
Isotope labelled1Deuterated, 13C or 15N internal standards
Counts are based on product names. One compound can fall into more than one type.
All Levofloxacin reference materials
1–25 of 25 standards
Ethyl 3-(N,N-dimethylamino)-2-(2,3,4,5-Tetrafluorobenzoyl)acrylate
- CAS
- 138998-47-7
- Formula
- C14H13F4NO3
- MW
- 319.25 g/mol
ZX-039357
N,N'-Desethylene Levofloxacin Hydrochloride
- CAS
- 1346603-62-0
- Formula
- C16H19ClFN3O4
- MW
- 371.79 g/mol
ZX-025376
Questions
Levofloxacin impurities, answered
How many Levofloxacin impurity standards does Zemixal list?
The catalogue currently lists 25 compounds for Levofloxacin, including 9 pharmacopoeial impurities, 1 nitrosamine and 1 isotope-labelled standard. Each product page shows the CAS number where one is assigned, the structure, formula and molecular weight.
What documents come with a Levofloxacin impurity standard?
A certificate of analysis travels with every lot. On request we share the characterisation set, usually 1H-NMR, mass spectrum, HPLC purity and IR, and for some materials TGA or water content. Ask for the data before ordering if your QA team needs to review it.
Can Zemixal make a Levofloxacin impurity that is not listed?
Often yes. Send the structure, name or CAS number with the quantity you need and our sourcing team checks custom synthesis options, usually from 10 mg up to gram scale, with a quoted lead time.
Do you supply Levofloxacin nitrosamine impurities?
Yes. 1 N-nitroso compound is listed for Levofloxacin. They are used for confirmatory testing and method validation in line with ICH M7 and the nitrosamine guidance from the major regulators.
Are isotope-labelled Levofloxacin standards available?
Yes. 1 stable-isotope labelled compound is listed, suitable as internal standards for LC-MS bioanalysis and trace impurity quantitation.