5-Hydroxypicolinaldehyde

Also known as: 2-Formyl-5-hydroxypyridine, 5-Hydroxy-2-pyridinecarboxaldehyde, 5-Hydroxypyridine-2-carboxaldehyde, 5-Hydroxy-2-pyridinecarbaldehyde, 5-Hydroxypyridine-2-carbaldehyde, 6-Formyl-3-pyridinol, NSC 127948, NSC 129151

5-Hydroxypicolinaldehyde (CAS 31191-08-9) 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 boiling point of 363.5±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 173.7±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 31191-08-9
Jingsj CID: J-1965621-4
Molecular Formula: C₆H₅NO₂
Molecular Weight: 123.109 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	363.5±22.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	173.7±22.3 °C
Exact Mass	123.032028
PSA	50.19000
LogP	0.84
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.629

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 5-Hydroxypicolinaldehyde?

The CAS number of 5-Hydroxypicolinaldehyde is 31191-08-9.

What are the molecular formula and molecular weight of 5-Hydroxypicolinaldehyde?

5-Hydroxypicolinaldehyde has molecular formula C6H5NO2 and molecular weight 123.109 g/mol.

What are the upstream and downstream products of 5-Hydroxypicolinaldehyde?

For 5-Hydroxypicolinaldehyde, Upstream Products: 6-(Hydroxymethyl)pyridin-3-ol; Downstream Products: 5-Hydroxypicolinaldehyde oxime.

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. "5-Hydroxypicolinaldehyde (CAS 31191-08-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1965621-4 (accessed 2026-11-09).

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