5-Hydroxy-2(1H)-pyridinone
[CAS# 5154-01-8]

Identification

• Classification: Pharmaceutical intermediate >> Heterocyclic compound intermediate >> Pyridine compound >> Hydroxypyridine
• Name: 5-Hydroxy-2(1H)-pyridinone
• Synonyms: 5-Hydroxy-2(1H)-pyridone; 2,5-Pyridinediol; 2,5-Dihydroxypyridine; 5-Hydroxy-2-pyridone; 6-Hydroxy-3-pyridinol; NSC 224189
• Molecular Formula: C₅H₅NO₂
• Molecular Weight: 111.10
• CAS Registry Number: 5154-01-8
• EC Number: 965-357-5

Properties

• Density: 1.379
• Melting point: 261-263 ºC
• Boiling point: 334 ºC
• Flash point: 156 ºC

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H302
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2A	H319