5-Hydroxy-1,4-naphthalenedione
[CAS# 481-39-0]

Identification

• Classification: Chemical reagent >> Organic reagent >> Aromatic ketone
• Name: 5-Hydroxy-1,4-naphthalenedione
• Synonyms: 5-Hydroxy-p-naphthoquinone; Juglone
• Molecular Formula: C₁₀H₆O₃
• Molecular Weight: 174.15
• CAS Registry Number: 481-39-0
• EC Number: 207-567-5

Properties

• Melting point: 161-163 ºC
• Water solubility: SOLUBLE IN HOT WATER

Safety Data

• Hazard Symbols: T
• Risk Codes: R25;R36/37/38
• Safety Description: S26;S28A;S37/39;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	3	H301
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412
Acute toxicity	Acute Tox.	3	H331
Acute toxicity	Acute Tox.	3	H311
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Eye irritation	Eye Irrit.	2A	H319
Chronic hazardous to the aquatic environment	Aquatic Chronic	4	H413

• Transport Information: UN 2811