Molekula
Norfloxacin
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Norfloxacin is a broad-spectrum fluoroquinolone antibiotic used primarily to treat bacterial infections in humans and animals, including urinary tract infections, respiratory infections, and certain sexually transmitted diseases. It works by inhibiting bacterial DNA gyrase and topoisomerase IV enzymes, disrupting DNA replication. This chemical is available under CAS 70458-96-7 with the molecular formula C16H18FN3O3 and a molecular weight of 319.33 g/mol. It must be stored between 2 to 8°C and carries a **Warning** signal word for safety. Molekula supplies Norfloxacin from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 g — £28.00 per pack ex VAT · £33.60 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Off-white or pale yellow crystalline powder |
| Heavy metals | ≤0.0015% |
| Identification | A. IR; B. UV |
| Loss on Drying | ≤1.0% |
| Solubility | Slightly soluble in acetone, and in alcohol; freely soluble in acetic acid, insoluble in ether |
| Assay | 99.0% - 101.0% |
| Purity | The sum of all impurities peaks is not more than 0.5% (HPLC) |
| Residue on Ignition | ≤0.1% |
| Residual Solvents | Ethanol ≤5000 ppm; toluene ≤890 ppm |
| Absorbance | ≤3.0% (at 273 nm) |
| Water (KF) | ≤ 3.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White to light-yellow crystalline powder |
| Melting Point | 220-221 °C |
| pKa | pKa = 6.23 |
| log P (octanol/water) | 0.46 |
Source: PubChem CID 4539 (HSDB, ChEMBL)
Identification
| Property | Value |
|---|---|
| SKU | 32616814 |
| CAS Number | 70458-96-7 |
| IUPAC Name | 1-ethyl-6-fluoro-4-oxo-7-piperazin-1-ylquinoline-3-carboxylic acid |
| EC Number | 274-614-4 |
| Molecular Formula | C16H18FN3O3 |
| Molecular Weight | 319.33 |
| Exact Mass | 319.1332 |
| SMILES | CCN1C=C(C(=O)C2=CC(=C(C=C21)N3CCNCC3)F)C(=O)O |
| InChIKey | OGJPXUAPXNRGGI-UHFFFAOYSA-N |
| InChI | 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) |
| PubChem CID | 4539 |
| REACH Code | Y110 |
| HTS Code | 29335995 |
| Tariff Code | 2933599590 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H319 Causes serious eye irritation
- H361 Suspected of damaging fertility or the unborn child
Precautionary statements
- P263 Avoid contact during pregnancy/while nursing
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1-ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid
- Baccidal
- Chibroxin
- Fulgram
- NFLX
- Norfloxacine
- Norfloxacino
- Norfloxacinum
- Noroxin
- Sebercim
Frequently asked questions
What is norfloxacin commonly used for?
Norfloxacin is primarily used as an antibiotic to treat bacterial infections, including urinary tract infections, prostatitis, and certain types of diarrhea.
What is the chemical formula and molecular weight of norfloxacin?
The chemical formula is **C₁₆H₁₈FN₃O₃**, and the molecular weight is **319.33 g/mol**.
How should norfloxacin be stored?
Store norfloxacin between **2–8°C** in a dry, well-ventilated area, away from direct sunlight and incompatible substances.
What grades or purity levels of norfloxacin does Molekula supply?
Molekula supplies norfloxacin in **pharmaceutical-grade purity** (typically ≥98% HPLC).
Can Molekula supply norfloxacin in bulk quantities?
Yes, Molekula can provide norfloxacin in bulk, with flexible packaging options (e.g., drums, bags) based on customer requirements.
What documentation is included with a norfloxacin order?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.