3,4-Dihydroquinoxaline-2(1H)-one
[CAS# 59564-59-9]

Identification

• Name: 3,4-Dihydroquinoxaline-2(1H)-one
• Synonyms: 3,4-Dihydro-2(1H)quinoxalinone; 3,4-Dihydroquinoxalin-2-one; NSC 73534
• Molecular Formula: C₈H₈N₂O
• Molecular Weight: 148.16
• CAS Registry Number: 59564-59-9
• EC Number: 664-213-6

Properties

• Solubility: Soluble (43 g/L) (25 ºC), Calc.^*
• Density: 1.186±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 140-143 ºC^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Pfister, Karl, III; Journal of the American Chemical Society 1951, V73, P4955-7.

Safety Data

Hazard Classification

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