Ciprofloxacin

Ciprofloxacin

Parameter Specification
Product Name Ciprofloxacin
CAS Number 85721-33-1
Molecular Formula C17H18FN3O3
Molecular Weight 331.34 g/mol
Appearance White to off-white crystalline powder
Assay (HPLC) 98.0% – 102.0% (on dried basis)
Solubility Slightly soluble in water; soluble in dilute acids and bases
Package 25 kg fiber drum with double polyethylene liner

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Ciprofloxacin Structure

Synonyms: Cipro, Ciprobay, Ciproxin, Bay o 9867, 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinolinecarboxylic acid

Ciprofloxacin is a synthetic broad-spectrum antibiotic belonging to the second-generation fluoroquinolone class. Since its introduction in the late 1980s, it has become a mainstay in both human and veterinary medicine, valued for its potent activity against a wide range of Gram-negative and Gram-positive bacteria. The compound works by inhibiting DNA gyrase and topoisomerase IV, enzymes essential for bacterial DNA replication and repair.

Chemically, ciprofloxacin is a fluorinated quinolone carboxylic acid. The presence of a fluorine atom at position 6 and a piperazine ring at position 7 enhances its potency and tissue penetration. It is often supplied as the hydrochloride salt or as the free base, depending on the intended formulation. The free base is practically insoluble in water, while the hydrochloride form offers improved aqueous solubility.

In the API market, ciprofloxacin is standardized to high purity levels, typically ≥98.0% as determined by HPLC. It is widely used in the production of oral tablets, intravenous solutions, ophthalmic drops, and veterinary products. Its broad-spectrum efficacy and favorable pharmacokinetic profile make it a key component in the fight against urinary tract infections, respiratory infections, and skin infections, among others.

Function & Mechanism

  • DNA gyrase inhibition: Blocks bacterial DNA replication by targeting DNA gyrase, leading to cell death.
  • Topoisomerase IV inhibition: Disrupts chromosomal partitioning during bacterial cell division.
  • Broad-spectrum activity: Effective against both Gram-negative and Gram-positive pathogens, including Pseudomonas aeruginosa.
  • Concentration-dependent killing: Exhibits rapid bactericidal action proportional to drug concentration.
  • Post-antibiotic effect: Suppresses bacterial regrowth after exposure, allowing less frequent dosing.

Source & Standardization

  • Source: Synthetic chemical synthesis
  • Standardization: ≥98.0% (HPLC), meeting Ph. Eur., USP, and BP monographs
  • Forms: Crystalline powder (free base or hydrochloride salt)
  • Applications: Oral solid dosage forms, sterile injectables, ophthalmic preparations, veterinary medicines

Quality Specifications (QC Tests)

Test Item Specification
Identification IR and UV spectra conform to reference standard
Loss on Drying ≤ 1.0%
Residue on Ignition ≤ 0.1%
Heavy Metals ≤ 20 ppm
Organic Impurities Meets Ph. Eur./USP limits
Residual Solvents Meets ICH Q3C limits
Microbial Limits Total aerobic count ≤ 1000 CFU/g; absence of specified pathogens

Bulk Supply & Documentation

  • Monthly capacity: 20 MT
  • Lead time: 3-5 business days (stock items)
  • Documentation: COA, MSDS, TDS, DMF available upon request
  • Packaging: 25 kg fiber drum with double polyethylene liner, or as per customer requirement

Frequently Asked Questions

What is the minimum order quantity (MOQ) for Ciprofloxacin?

Our standard MOQ is 25 kg. For trial orders, we can accommodate smaller quantities; please contact our sales team for details.

How long does delivery take?

For stock items, delivery is typically 3-5 business days after order confirmation. We ship from our warehouse and provide tracking information promptly.

Do you provide a Certificate of Analysis (COA) and samples?

Yes, a COA is available for each batch. We also provide samples for quality evaluation upon request; sample delivery usually takes 1-2 days.

Contact & Ordering Information

  • Company: LyvBio Co., Ltd.
  • Address: Room 5-0203, Courtyard 205, Lianhu District, Xi’an, Shaanxi, China
  • Email: info@lyvbio.com
  • Phone: +86-29-65816888

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Room,5-0203, Unit 5, Beiyuanmen Street,Xi'an,Shaanxi,China

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