Ciprofloxacin

Drug ingredient

CAS 85721-33-1

This chemical is an active pharmaceutical ingredient used in FDA-regulated drugs.

Molecular structure of 85721-33-1
US productionNot reported
Import value, 2024$7.6B
Top sourceIreland 61%

This chemical is not on EPA’s Toxic Substances Control Act inventory, the list behind EPA’s production survey.

Why supply is unknown

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 293359 · basket

These shares come from HS customs code 293359, which covers 295 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
IE 61%IrelandCH 30%SwitzerlandGB 2%United KingdomCN 2%ChinaIN 1%India
9 FDA-registered drug labelers
Bayer Healthcare Manufacturing Srl
Dr.Reddys Laboratories Limited
Genus Lifesciences
Hospira, Inc.
Neuland Laboratories Limited
ProPharma Distribution
Quimica Sintetica S.A.
Sagent Pharmaceuticals
UQUIFA Mexico, S.A. DE C.V.

Why It Matters

Sectors
Health
Downstream Uses

Appears in 3 drug and cosmetic product listings (FDA).

  • •Ciprofloxacin in Dextrose
  • •Ciprofloxacin
  • •Ciprofloxacin Otic
FDA Shortage Status
No FDA shortage records

Vendor Pricing

$0.12/gAaron Chemicals LLC
CountryHong Kong
Pack$115.00 / 1 kg
Purity98%
Vendors33 available

Prices reflect listed pack sizes. Small research packs run far above bulk rates.

Chemical Identity

CAS85721-33-1
PubChem CID2764
DTXSIDDTXSID8022824
FormulaC17H18FN3O3
Mol. Weight331.34 g/mol
SMILESC1CC1N2C=C(C(=O)C3=CC(=C(C=C32)N4CCNCC4)F)C(=O)O

Data Sources

Brief citations

Ciprofloxacin (CAS 85721-33-1) https://chemicalindependence.com/chemical/85721-33-1/ PubChem: 2764. Retrieved 2026-04-07. https://pubchem.ncbi.nlm.nih.gov/compound/2764 FDA National Drug Code directory: CAS 85721-33-1. Retrieved 2026-04-25. https://open.fda.gov/data/ndc/ FDA National Drug Code directory: bulk match. Retrieved 2026-04-07. https://open.fda.gov/data/ndc/ US Census international trade: HS 293359 for CAS 85721-33-1. Reporting year: 2024. https://usatrade.census.gov/