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Niflumic acid

Also known as: 2-(3-Trifluoromethylanilino)nicotinic acid, 2-[3-(Trifluoromethyl)anilino]nicotinic acid, 2-[(3-Trifluoromethylphenyl)amino]nicotinic acid, 2-(α,α,α-trifluoro-m-toluidino)nicotinic acid, 2-[[3-(Trifluoromethyl)phenyl]amino]-3-pyridinecarboxylic acid, 2-{[3-(Trifluoromethyl)phenyl]amino}nicotinic acid, 3-Pyridinecarboxylic acid, 2-[[3-(trifluoromethyl)phenyl]amino]-, ACIDUM NIFLUMICUM, Niflumate

Niflumic acid (CAS 4394-00-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H9F3N2O2 and a molecular weight of 282.218 g/mol. Key properties include a melting point of 203-204ºC, a boiling point of 378.0±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 182.4±27.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4394-00-7
Jingsj CID
J-33694-5
Molecular Formula
C13H9F3N2O2
Molecular Weight
282.218 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point203-204ºC
Boiling Point378.0±42.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point182.4±27.9 °C
Exact Mass282.061615
PSA62.22000
LogP4.94
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.589
Additional PropertySoluble in ethanol (~50 mg/ml), acetone (50 mg/ml, Clear to Slightly Hazy, Yellow), methanol (~50 mg/ml), DMSO (56 mg/ml at 25°C), and acetonitrile (~50 mg/ml).

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Criddle, D.N., et al., Inhibitory action of niflumic acid on noradrenaline- and 5-hydroxytryptamine-induced pressor responses in the isolated mesenteric vascular bed of the rat. Br J Pharmacol, 1997. 120(5): p. 813-8. [2]. Jabeen, T., et al., Non-steroidal anti-inflammatory drugs as potent inhibitors of phospholipase A2: structure of the complex of phospholipase A2 with niflumic acid at 2.5 Angstroms resolution. Acta Crystallogr D Biol Crystallogr, 2005. 61(Pt 12): p. 1579- [3]. Picollo, A., et al., Mechanism of interaction of niflumic acid with heterologously expressed kidney CLC-K chloride channels. J Membr Biol, 2007. 216(2-3): p. 73-82.

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. 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 Niflumic acid?

The CAS number of Niflumic acid is 4394-00-7.

What are the molecular formula and molecular weight of Niflumic acid?

Niflumic acid has molecular formula C13H9F3N2O2 and molecular weight 282.218 g/mol.

Is Niflumic acid hazardous?

Niflumic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.

What are the upstream and downstream products of Niflumic acid?

For Niflumic acid, Upstream Products: 2-Chloronicotinic acid, 3-(Trifluoromethyl)aniline; Downstream Products: Talniflumate.

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

Last updated:

How to cite: Jingsj. "Niflumic acid (CAS 4394-00-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33694-5 (accessed 2026-11-06).

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