Enoximone

Also known as: 1,3-Dihydro-4-methyl-5-[4-(methylthio)benzoyl]-2H-imidazol-2-one, 2H-Imidazol-2-one, 1,3-dihydro-4-methyl-5-(4-(methylthio)benzoyl)-, 2H-Imidazol-2-one, 1,3-dihydro-4-methyl-5-[4-(methylthio)benzoyl]-, 4-Methyl-5-[4-(methylsulfanyl)benzoyl]-1,3-dihydro-2H-imidazol-2-one, 4-methyl-5-(4-methylsulfanylbenzoyl)-1,3-dihydroimidazol-2-one, Fenoximone, MDL-17043, Perfan, Perfane, RMI-17043, Pedane

Enoximone (CAS 77671-31-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H12N2O2S and a molecular weight of 248.301 g/mol. Key properties include a melting point of 255-258°C and a density of 1.3±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 77671-31-9
Jingsj CID: J-36311-4
Molecular Formula: C₁₂H₁₂N₂O₂S
Molecular Weight: 248.301 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	255-258°C
Density	1.3±0.1 g/cm3
Exact Mass	248.061951
PSA	91.02000
LogP	3.72
Appearance	solid \| light yellow
Refractive Index	1.645
Storage Conditions	Store at +4°C
Additional Property	DMSO: 28 mg/mL, soluble

Activity & Biological Data

Target	PDE3/PDE Ⅲ:5.9 μM (IC50) PDE4A:21.1 μM (IC50, myocardial PDE4A)
Additional Information	[1]. Jan Beute, et al. A Pathophysiological Role of PDE3 in Allergic Airway Inflammation. JCI Insight. 2018 Jan 25;3(2):e94888. [2]. R C Dage, et al. Pharmacology and Pharmacokinetics of Enoximone. Cardiology. 1990;77 Suppl 3:2-13; discussion 27-33. [3]. M B Vroom, et al. Effect of Phosphodiesterase Inhibitors on Human Arteries in Vitro. Br J Anaesth. 1996 Jan;76(1):122-9.

Customs & Trade Information

HS Code	2933290090
Summary	2933290090. other compounds containing an unfused imidazole 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 Enoximone?

The CAS number of Enoximone is 77671-31-9.

What are the molecular formula and molecular weight of Enoximone?

Enoximone has molecular formula C12H12N2O2S and molecular weight 248.301 g/mol.

What are the upstream and downstream products of Enoximone?

For Enoximone, Upstream Products: 4-Methyl-1,3-dihydro-2H-imidazol-2-one, 4-(Methylthio)benzoic acid, 4-(Methylthio)benzoyl chloride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Enoximone (CAS 77671-31-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36311-4 (accessed 2026-11-07).

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