2H,4H-1,3-Isoquinolinedione
[CAS# 4456-77-3]

Identification

• Name: 2H,4H-1,3-Isoquinolinedione
• Synonyms: 1,2,3,4-Tetrahydroisoquinoline-1,3-dione; 2H,4H-1,3-Isoquinolinedione; FR 038470; Homophthalimide; NSC 409146
• Molecular Formula: C₉H₇NO₂
• Molecular Weight: 161.16
• CAS Registry Number: 4456-77-3
• EC Number: 880-890-2

Properties

• Solubility: Slightly soluble (5.8 g/L) (25 °C), Calc.^*
• Density: 1.286±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 236-238 °C^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2015 ACD/Labs)

^** Spangler, Richard J.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H332
Acute toxicity	Acute Tox.	4	H302
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2A	H319