2-Oxo-1,2-dihydropyridine-3-carbaldehyde

Also known as: 2-Hydroxynicotinaldehyde, 2-Hydroxypyridine-3-carboxaldehyde, 2-Hydroxypyridine-3-carbaldehyde, 1,2-Dihydro-2-oxo-3-pyridinecarboxaldehyde, 2-Oxo-1,2-dihydro-3-pyridinecarbaldehyde, 2-Oxo-1,2-dihydropyridin-3-carbaldehyde, 2-Keto-1H-pyridine-3-carbaldehyde, 3-Pyridinecarboxaldehyde, 1,2-dihydro-2-oxo-

2-Oxo-1,2-dihydropyridine-3-carbaldehyde (CAS 36404-89-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5NO2 and a molecular weight of 123.109 g/mol. Key properties include a melting point of 220-222ºC, a boiling point of 304.0±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 137.6±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 36404-89-4
Jingsj CID: J-1179400-6
Molecular Formula: C₆H₅NO₂
Molecular Weight: 123.109 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	220-222ºC
Boiling Point	304.0±22.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	137.6±22.3 °C
Exact Mass	123.032028
PSA	49.93000
LogP	-0.10
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.629
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2933399090
Summary	2933399090. 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 2-Oxo-1,2-dihydropyridine-3-carbaldehyde?

The CAS number of 2-Oxo-1,2-dihydropyridine-3-carbaldehyde is 36404-89-4.

What are the molecular formula and molecular weight of 2-Oxo-1,2-dihydropyridine-3-carbaldehyde?

2-Oxo-1,2-dihydropyridine-3-carbaldehyde has molecular formula C6H5NO2 and molecular weight 123.109 g/mol.

What are the upstream and downstream products of 2-Oxo-1,2-dihydropyridine-3-carbaldehyde?

For 2-Oxo-1,2-dihydropyridine-3-carbaldehyde, Upstream Products: 2-Methoxypyridine-3-carbaldehyde, 2-Hydroxynicotinic acid.

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-Oxo-1,2-dihydropyridine-3-carbaldehyde (CAS 36404-89-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1179400-6 (accessed 2026-11-09).

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