5H-[1]Benzopyrano[2,3-b]pyridine

Also known as: 5H-chromeno[2,3-b]pyridine, Pranoprofen Impurity 35, Pranoprofen Impurity 50, Pranoprofen Impurity N4

5H-[1]Benzopyrano[2,3-b]pyridine (CAS 261-27-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H9NO and a molecular weight of 183.20600 g/mol. Key properties include a boiling point of 340.3ºC at 760 mmHg, a density of 1.218g/cm3 and a flash point of 124.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 261-27-8
Jingsj CID: J-1011274-0
Molecular Formula: C₁₂H₉NO
Molecular Weight: 183.20600 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	340.3ºC at 760 mmHg
Density	1.218g/cm3
Flash Point	124.5ºC
Exact Mass	183.06800
PSA	22.12000
LogP	2.77810
Vapor Pressure	0.000171mmHg at 25°C
Refractive Index	1.63

Frequently Asked Questions

What is the CAS number of 5H-[1]Benzopyrano[2,3-b]pyridine?

The CAS number of 5H-[1]Benzopyrano[2,3-b]pyridine is 261-27-8.

What are the molecular formula and molecular weight of 5H-[1]Benzopyrano[2,3-b]pyridine?

5H-[1]Benzopyrano[2,3-b]pyridine has molecular formula C12H9NO and molecular weight 183.20600 g/mol.

What are the upstream and downstream products of 5H-[1]Benzopyrano[2,3-b]pyridine?

For 5H-[1]Benzopyrano[2,3-b]pyridine, Upstream Products: 5-bromo-2-chloropyrimidine, 2-Allylphenol.

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. "5H-[1]Benzopyrano[2,3-b]pyridine (CAS 261-27-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1011274-0 (accessed 2026-11-09).

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