1,1'-(1,4-phenylene)bis(5-methylpyridin-2(1H)-one)

1,1'-(1,4-亚苯基)双(5-甲基吡啶-2(1H)-酮)

Also known as: Pirfenidone Impurity 3, Pirfenidone Impurity 34, Pirfenidone Impurity, Pirfenidone 5-Methylpyridin-2-one, 2(1H)-Pyridinone, 1,1'-(1,4-phenylene)bis[5-methyl-

1,1'-(1,4-phenylene)bis(5-methylpyridin-2(1H)-one) (CAS 2251047-36-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H16N2O2 and a molecular weight of 292.3 g/mol. It is also known as Pirfenidone Impurity 3, Pirfenidone Impurity 34 and Pirfenidone Impurity. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2251047-36-4
Jingsj CID: J-523547-6
Molecular Formula: C₁₈H₁₆N₂O₂
Chinese Name: 1,1'-(1,4-亚苯基)双(5-甲基吡啶-2(1H)-酮)
Molecular Weight: 292.3 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 1,1'-(1,4-phenylene)bis(5-methylpyridin-2(1H)-one)?

The CAS number of 1,1'-(1,4-phenylene)bis(5-methylpyridin-2(1H)-one) is 2251047-36-4.

What are the molecular formula and molecular weight of 1,1'-(1,4-phenylene)bis(5-methylpyridin-2(1H)-one)?

1,1'-(1,4-phenylene)bis(5-methylpyridin-2(1H)-one) has molecular formula C18H16N2O2 and molecular weight 292.3 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,1'-(1,4-phenylene)bis(5-methylpyridin-2(1H)-one) (CAS 2251047-36-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-523547-6 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.