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API Impurities

5-Nitro-2-furoic acid

Reference StandardAvailable on request

Buy 5-Nitro-2-furoic acid (CAS 645-12-5) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
5-Nitro-2-furoic acid chemical structure
CAS number645-12-5
FormulaC5H3NO5
Molar mass157.08 g/mol
Physical formSolid
HS code38229090
InChIKeyIODMEDPPCXSFLD-UHFFFAOYSA-N
IUPAC name5-nitrofuran-2-carboxylic acid

About 5-Nitro-2-furoic acid

5-Nitro-2-furoic acid is supplied by Zemixal as a characterised reference material for Nifuratel analysis. Key data (Reference Standard): CAS 645-12-5, formula C5H3NO5 and molar mass 157.08 g/mol. It is handled as a solid.

Where it is used

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Storage and safety notes

It carries the GHS signal word Warning (H319 and H341), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Nifuratel

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

Nifuratel standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of 5-Nitro-2-furoic acid
Product name5-Nitro-2-furoic acid
Catalogue numberZX-022373
CAS number645-12-5
IUPAC name5-nitrofuran-2-carboxylic acid
Molecular formulaC5H3NO5
Molar mass157.08 g/mol
Exact mass157.0011
GradeReference Standard
Physical formSolid
XLogP31
H-bond donors / acceptors1 / 5
Topological polar surface area96.3 Ų
HS code38229090
InChIKeyIODMEDPPCXSFLD-UHFFFAOYSA-N
SMILESC1=C(OC(=C1)[N+](=O)[O-])C(=O)O
PubChem CID12577
SynonymsNitrofurate, 5-Nitrofuroic acid, 2-Furoic acid, 5-nitro-, 5-Nitro-2-furancarboxylic Acid, 2-Furancarboxylic acid, 5-nitro-, 5-Nitrofurancarboxylic acid, 5-Nitropyromucic acid, 5-nitro-2-furan-carboxylic acid, 5-Nitro-furan-2-carboxylic acid, 5-Nitropyromucate, 2-Furancarboxylic acid, 5-nitro

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
GHS08 Health hazard
Health hazard

Signal word Warning

  • H319Causes serious eye irritation
  • H341Suspected of causing genetic defects

Precautionary statements P203, P264 + P265, P280, P305 + P351 + P338, P318, P337 + P317, 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 5-Nitro-2-furoic acid
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 5-Nitro-2-furoic acid

Which CAS number identifies 5-Nitro-2-furoic acid?
5-Nitro-2-furoic acid is registered under CAS 645-12-5. You may also see it listed as Nitrofurate, 5-Nitrofuroic acid, 2-Furoic acid, 5-nitro-. Our catalogue number for this item is ZX-022373.
What are the formula and molar mass of 5-Nitro-2-furoic acid?
For 5-Nitro-2-furoic acid, its formula is C5H3NO5 and its molar mass is 157.08 g/mol. The systematic (IUPAC) name is 5-nitrofuran-2-carboxylic acid. InChIKey IODMEDPPCXSFLD-UHFFFAOYSA-N lets you match it in any structure database.
How is 5-Nitro-2-furoic acid used in pharmaceutical QC?
5-Nitro-2-furoic acid is a characterised reference material linked to Nifuratel. 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 5-Nitro-2-furoic acid?
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 5-Nitro-2-furoic acid?
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 5-Nitro-2-furoic acid to my country?
Yes. Because 5-Nitro-2-furoic acid 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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