2,3-Dihydro-4H-pyrano[3,2-b]pyridin-4-one

Also known as: 4H-Pyrano[3,2-b]pyridin-4-one, 2,3-dihydro-, 2,3-dihydropyrano[3,2-b]pyridin-4-one, 2H-pyrano[3,2-b]pyridin-4(3H)-one, 2,3-dihydro-pyrano[3,2-b]pyridine-4-one, 4H-Pyrano[3,2-b]pyridin-4-one,2,3-dihydro-(9CI)

2,3-Dihydro-4H-pyrano[3,2-b]pyridin-4-one (CAS 405174-48-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7NO2 and a molecular weight of 149.14700 g/mol. Key properties include a boiling point of 305.709ºC at 760 mmHg, a density of 1.274g/cm3 and a flash point of 138.688ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 405174-48-3
Jingsj CID: J-1508271-0
Molecular Formula: C₈H₇NO₂
Molecular Weight: 149.14700 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	305.709ºC at 760 mmHg
Density	1.274g/cm3
Flash Point	138.688ºC
Exact Mass	149.04800
PSA	39.19000
LogP	1.04680
Refractive Index	1.567

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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 2,3-Dihydro-4H-pyrano[3,2-b]pyridin-4-one?

The CAS number of 2,3-Dihydro-4H-pyrano[3,2-b]pyridin-4-one is 405174-48-3.

What are the molecular formula and molecular weight of 2,3-Dihydro-4H-pyrano[3,2-b]pyridin-4-one?

2,3-Dihydro-4H-pyrano[3,2-b]pyridin-4-one has molecular formula C8H7NO2 and molecular weight 149.14700 g/mol.

What are the upstream and downstream products of 2,3-Dihydro-4H-pyrano[3,2-b]pyridin-4-one?

For 2,3-Dihydro-4H-pyrano[3,2-b]pyridin-4-one, Upstream Products: 4-Hydroxymethyl-3,4-dihydro-2H-pyrano[3,2-b]pyridin-4-ol, 4-Methylene-3,4-dihydro-2H-pyrano[3,2-b]pyridine, 2-bromo-3-pyridinol; Downstream Products: 3,4-Dihydro-2H-pyrano[3,2-b]pyridin-4-ol, 3,4-Dihydro-2H-pyrano[3,2-b]pyridin-4-amine.

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. "2,3-Dihydro-4H-pyrano[3,2-b]pyridin-4-one (CAS 405174-48-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1508271-0 (accessed 2026-11-09).

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