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Pirfenidone

Also known as: 5-Methyl-1-phenyl-2(1H)-pyridinone, 5-Methyl-1-phenylpyridin-2(1H)-one, AMR-69, S-7701, Esbriet, Pirespa, 5-Methyl-1-phenylpyridine-2(1H)-one, 5-methyl-1-phenyl-2-pyridone, MFCD00866047

Pirfenidone (CAS 53179-13-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H11NO and a molecular weight of 185.222 g/mol. Key properties include a melting point of 96-97ºC, a boiling point of 329.1±15.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 152.7±11.6 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
53179-13-8
Jingsj CID
J-1326986-8
Molecular Formula
C12H11NO
Molecular Weight
185.222 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point96-97ºC
Boiling Point329.1±15.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point152.7±11.6 °C
Exact Mass185.084061
PSA22.00000
LogP1.82
Appearancesolid
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.592
Storage ConditionsStore at RT
Additional PropertyDMSO: ≥10 mg/mL, soluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

Activity & Biological Data

TargetTGF-β2[1]
Additional Information[1]. Burghardt I, et al. Pirfenidone inhibits TGF-beta expression in malignant glioma cells. Biochem Biophys Res Commun. 2007 Mar 9;354(2):542-7. [2]. Nakazato H, et al. A novel anti-fibrotic agent pirfenidone suppresses tumor necrosis factor-alpha at the translational level. Eur J Pharmacol. 2002 Jun 20;446(1-3):177-85. [3]. Yang Y, et al. Inhibition of Pirfenidone on TGF-beta2 induced proliferation, migration and epithlial-mesenchymal transitionof human lens epithelial cells line SRA01/04. PLoS One. 2013;8(2):e56837. [4]. Inomata M, et al. Pirfenidone inhibits fibrocyte accumulation in the lungs in bleomycin-induced murine pulmonary fibrosis. Respir Res. 2014 Feb 8;15:16. [5]. Brooks D, et al. Limited fibrosis accompanies triple-negative breast cancer metastasis in multiple model systems and is not a preventive target. Oncotarget. 2018 May 4;9(34):23462-23481.

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 Pirfenidone?

The CAS number of Pirfenidone is 53179-13-8.

What are the molecular formula and molecular weight of Pirfenidone?

Pirfenidone has molecular formula C12H11NO and molecular weight 185.222 g/mol.

Is Pirfenidone hazardous?

Pirfenidone has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of Pirfenidone?

For Pirfenidone, Upstream Products: 5-Methyl-2(1H)-pyridinone, Iodobenzene, Bromobenzene.

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

Last updated:

How to cite: Jingsj. "Pirfenidone (CAS 53179-13-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1326986-8 (accessed 2026-11-09).

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