Molekula
Ciprofloxacin
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
Ciprofloxacin is a synthetic fluoroquinolone antibiotic used to treat a wide range of bacterial infections. It functions by inhibiting bacterial DNA gyrase and topoisomerase IV, preventing DNA replication. Available in powder form with a molecular formula of C17H18FN3O3, it has a molecular weight of 331.34 g/mol and a CAS number of 85721-33-1. Store at -15 to -20 °C. Molekula supplies Ciprofloxacin 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.
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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5 g — £30.90 per pack ex VAT · £37.08 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 | White crystalline powder |
| Heavy metals | ≤0.002% |
| Identification | IR: conforms to the USP Ciprofloxacin RS spectrum. HPLC: the retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in the assay. |
| Loss on Drying | ≤1.0% |
| Chloride (Cl-) | ≤0.02% |
| Assay | 98.0 - 102.0% (on the dried basis) |
| Residue on Ignition | ≤0.1% |
| Total Impurities | ≤0.5% |
| Clarity in Solution | Clear to slightly opalescent (0.25 g/10 mL 0.1 N hydrochloric acid) |
| Any individual impurity | ≤0.2% |
| Sulphates (SO4)(2-) | ≤0.04% |
| Ciprofloxacin ethylenediamine analog | ≤0.2% |
| Limit of Fluoroquinolonic Acid | ≤0.2% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Faint to light yellow crystalline powder |
| Melting Point | 225-257 °C, decomposes |
| Solubility (other solvents) | Soluble in dilute (0.1N) hydrochloric acid; practically insoluble in ethanol |
| pKa | pKa = 6.09 |
| log P (octanol/water) | 0.28 |
Source: PubChem CID 2764 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 39826880 |
| CAS Number | 85721-33-1 |
| IUPAC Name | 1-cyclopropyl-6-fluoro-4-oxo-7-piperazin-1-ylquinoline-3-carboxylic acid |
| Molecular Formula | C17H18FN3O3 |
| Molecular Weight | 331.34 |
| Exact Mass | 331.1332 |
| SMILES | C1CC1N2C=C(C(=O)C3=CC(=C(C=C32)N4CCNCC4)F)C(=O)O |
| InChIKey | MYSWGUAQZAJSOK-UHFFFAOYSA-N |
| 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) |
| PubChem CID | 2764 |
| REACH Code | Y113 |
| HTS Code | 2933599500 |
| Tariff Code | 2933599590 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
- Bacquinor
- Cifloxin
- Cipro
- Ciprobay
- Ciprocinol
- Ciprodar
- Ciprofloxacina
- Ciprofloxacine
- Ciprofloxacino
- Ciprofloxacinum
Frequently asked questions
What is Ciprofloxacin used for?
Ciprofloxacin is a broad-spectrum antibiotic used to treat bacterial infections such as urinary tract infections, respiratory infections, and skin infections.
What is the chemical formula and molecular weight of Ciprofloxacin?
The chemical formula is C17H18FN3O3 and the molecular weight is 331.34 g/mol.
How should Ciprofloxacin be stored?
Ciprofloxacin should be stored at temperatures between -15 and -20 °C to maintain stability.
What grade of Ciprofloxacin does Molekula supply?
Molekula supplies Ciprofloxacin in research grade, suitable for laboratory use.
Can Molekula supply Ciprofloxacin in bulk quantities?
Yes, Molekula can supply Ciprofloxacin in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a Ciprofloxacin order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
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.