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Pharmacopeial Impurities (EP / USP / BP)

Ofloxacin EP Impurity A

Reference StandardIn stock

Order Ofloxacin EP Impurity A (CAS 82419-35-0) online at Zemixal: C13H9F2NO4, COA and SDS with every lot, worldwide shipping.

Pack sizes
Ofloxacin EP Impurity A chemical structure
CAS number82419-35-0
FormulaC13H9F2NO4
Molar mass281.21 g/mol
Physical formSolid
HS code38229090
InChIKeyNVKWWNNJFKZNJO-UHFFFAOYSA-N
IUPAC name6,7-difluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid

About Ofloxacin EP Impurity A

Ofloxacin EP Impurity A is supplied by Zemixal as a characterised reference material for Ofloxacin analysis. For your records (Reference Standard), the material is defined by CAS 82419-35-0, formula C13H9F2NO4 and molar mass 281.21 g/mol. It is handled as a solid.

Typical applications

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Safe handling

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Ofloxacin

See every impurity, metabolite and related compound we list for this API.

Ofloxacin standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Ofloxacin EP Impurity A
Product nameOfloxacin EP Impurity A
Catalogue numberZX-005859
CAS number82419-35-0
IUPAC name6,7-difluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid
Molecular formulaC13H9F2NO4
Molar mass281.21 g/mol
Exact mass281.05
GradeReference Standard
Physical formSolid
XLogP32.1
H-bond donors / acceptors1 / 7
Topological polar surface area66.8 Ų
HS code38229090
InChIKeyNVKWWNNJFKZNJO-UHFFFAOYSA-N
SMILESCC1COC2=C3N1C=C(C(=O)C3=CC(=C2F)F)C(=O)O
PubChem CID534278
SynonymsRS-Ofloxacin Carboxylic Acid, Oxygen-fluorine acid, Ofloxacin Q acid, Ofloxacin Difluoro Carboxylic Acid, 8,9-Difluoro-3-methyl-6-oxo-2,3-dihydro-6H-1-oxa-3a-aza-phenalene-5-carboxylic acid, Ofloxacin Impurity A, Ofloxacin Q acid, (+/-)-, 9,10-difluoro-, (RS-Ofloxacin Carboxylic Acid), Levofloxacin Impurity 1

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Ofloxacin EP Impurity A
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Ofloxacin EP Impurity A

Which CAS number identifies Ofloxacin EP Impurity A?
Ofloxacin EP Impurity A is registered under CAS 82419-35-0. You may also see it listed as RS-Ofloxacin Carboxylic Acid, Oxygen-fluorine acid, Ofloxacin Q acid. Our catalogue number for this item is ZX-005859.
What are the formula and molar mass of Ofloxacin EP Impurity A?
For Ofloxacin EP Impurity A, its formula is C13H9F2NO4 and its molar mass is 281.21 g/mol. The systematic (IUPAC) name is 6,7-difluoro-2-methyl-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5(13),6,8,11-tetraene-11-carboxylic acid. InChIKey NVKWWNNJFKZNJO-UHFFFAOYSA-N lets you match it in any structure database.
How is Ofloxacin EP Impurity A used in pharmaceutical QC?
Ofloxacin EP Impurity A is a characterised reference material linked to Ofloxacin. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Ofloxacin EP Impurity A?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Ofloxacin EP Impurity A?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Ofloxacin EP Impurity A to my country?
Yes. Because Ofloxacin EP Impurity A is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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