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Nitrofurantoin

Also known as: Furadantin, Macrodantin, Furadonine, Furadoine, 1-(((5-nitro-2-furanyl)methylene)amino)-2,4-imidazolidinedione, 1-[(5-nitrofurfurylidene)amino]hydantoin, N-(5-nitro-2-furfurylidene)-1-aminohydantoin, Furantoin

Nitrofurantoin (CAS 67-20-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6N4O5 and a molecular weight of 238.157 g/mol. Key properties include a melting point of 268°C and a density of 1.8±0.1 g/cm3. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H317 — May cause an allergic skin reaction and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
67-20-9
Jingsj CID
J-1102640-7
Molecular Formula
C8H6N4O5
Molecular Weight
238.157 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point268°C
Density1.8±0.1 g/cm3
Exact Mass238.033813
PSA120.73000
LogP-0.40
Refractive Index1.745
StabilityStability Stable, but light-sensitive. Combustible. Incompatible with strong oxidizing agents, strong alkalies, strong acids. Decomposes upon contact with most metals other than stainless steel and aluminium.
Additional Property<0.01 g/100 mL at 19 ºC

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H317 — May cause an allergic skin reaction
  • H334 — May cause allergy or asthma symptoms if inhaled

Activity & Biological Data

Additional Information[1]. Garau J. Other antimicrobials of interest in the era of extended-spectrum beta-lactamases: fosfomycin, nitrofurantoin and tigecycline. Clin Microbiol Infect. 2008 Jan;14 Suppl 1:198-202. [2]. Gupta K, et al. Increasing prevalence of antimicrobial resistance among uropathogens causing acute uncomplicated cystitis in women. JAMA. 1999 Feb 24;281(8):736-8. [3]. Gupta K, et al. International clinical practice guidelines for the treatment of acute uncomplicated cystitis and pyelonephritis in women: A 2010 update by the Infectious Diseases Society of America and the European Society for Microbiology and Infectious

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Nitrofurantoin?

The CAS number of Nitrofurantoin is 67-20-9.

What are the molecular formula and molecular weight of Nitrofurantoin?

Nitrofurantoin has molecular formula C8H6N4O5 and molecular weight 238.157 g/mol.

Is Nitrofurantoin hazardous?

Nitrofurantoin has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction; H334 — May cause allergy or asthma symptoms if inhaled.

What are the upstream and downstream products of Nitrofurantoin?

For Nitrofurantoin, Upstream Products: 5-Nitrofurfural, 1-aminohydantoin, 5-Nitro-2-furaldehyde diacetate; Downstream Products: 1-aminohydantoin.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Nitrofurantoin (CAS 67-20-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1102640-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.