Molekula
Levofloxacin
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
Levofloxacin is a synthetic fluoroquinolone antibiotic used to treat bacterial infections. It works by inhibiting bacterial DNA gyrase and topoisomerase IV. Available as a white to off-white powder, it has a CAS number of 100986-85-4, molecular formula C18H20FN3O4, and molecular weight of 361.37 g/mol. Store at 2 to 8 °C. Hazard classification includes signal word Danger. Molekula supplies Levofloxacin 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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5 g — £40.00 per pack ex VAT · £48.00 inc. VAT
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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 to light yellow crystalline powder |
| Specific rotation | -92° to -99° |
| Heavy metals | ≤10ppm |
| pH | 6.8 - 8.0 |
| Loss on Drying | 2.0% - 3.0% |
| Related Substances | HPLC determination |
| Assay (HPLC) | ≥98.0% |
| Residue on Ignition | ≤0.1% |
| Residual Solvents | Method for determination of residual solvents |
| Solubility in water | Slightly soluble in water, Slightly soluble in ethanol, insoluble in either, soluble in glacial acetic acid, slightly soluble in 0.1 mol/L hydrochloric acid solution. |
| Identification (UV) | visible spectrophotometer, IR, HPLC |
| Identification (IR) | Conforms to the spectrum of Levofloxcain RS |
| Identification (HPLC) | The retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in the Assay |
| Limits | The peak area of levofloxacin shall not be larger than the main peak area of control solution 1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 225-227 °C (decomposes) |
| Solubility (other solvents) | Freely soluble in glacial acetic acid, chloroform; sparingly soluble in water |
| pKa | pKa = 6.25 |
| log P (octanol/water) | -0.39 |
Source: PubChem CID 149096 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 24520686 |
| CAS Number | 100986-85-4 |
| IUPAC Name | (2S)-7-fluoro-2-methyl-6-(4-methylpiperazin-1-yl)-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid |
| Molecular Formula | C18H20FN3O4 |
| Molecular Weight | 361.37 |
| Exact Mass | 361.1438 |
| SMILES | C[C@H]1COC2=C3N1C=C(C(=O)C3=CC(=C2N4CCN(CC4)C)F)C(=O)O |
| InChIKey | GSDSWSVVBLHKDQ-JTQLQIEISA-N |
| InChI | InChI=1S/C18H20FN3O4/c1-10-9-26-17-14-11(16(23)12(18(24)25)8-22(10)14)7-13(19)15(17)21-5-3-20(2)4-6-21/h7-8,10H,3-6,9H2,1-2H3,(H,24,25)/t10-/m0/s1 |
| PubChem CID | 149096 |
| REACH Code | Y110 |
| HTS Code | 2934999001 |
| Tariff Code | 2934999090 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H361 Suspected of damaging fertility or the unborn child
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
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
- (-)-Ofloxacin
- (S)-Ofloxacin
- Cravit
- Iquix
- Levaquin
- Levofloxacine
- Levofloxacino
- Levofloxacinum
- Quixin
- Tavanic
Frequently asked questions
What is Levofloxacin used for?
Levofloxacin is a broad-spectrum antibiotic used to treat bacterial infections such as respiratory tract infections, urinary tract infections, and skin infections.
What is the chemical formula and molecular weight of Levofloxacin?
The chemical formula is C18H20FN3O4 and the molecular weight is 361.37 g/mol.
How should Levofloxacin be stored?
Levofloxacin should be stored at 2 to 8 °C and protected from light.
What grade of Levofloxacin does Molekula supply?
Molekula supplies Levofloxacin in research grade.
Can Molekula supply Levofloxacin in bulk quantities?
Yes, Molekula can supply Levofloxacin in bulk quantities—please contact our sales team for details.
What documentation comes with a Levofloxacin 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.