5-Methylbenzoxazole
[CAS# 10531-78-9]

Identification

• Name: 5-Methylbenzoxazole
• Molecular Formula: C₈H₇NO
• Molecular Weight: 133.15
• CAS Registry Number: 10531-78-9
• EC Number: 640-874-6

Properties

• Solubility: Slightly soluble (1.5 g/L) (25 ºC), Calc.^*
• Density: 1.149±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 49-51 ºC^**
• Boiling point: 110-111 ºC (10 Torr)^***
• Flash point: 76.7±14.6 ºC, Calc.^*

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

^** Lee, Jung June; Tetrahedron 2009, V65(43), P8821-8831.

^*** Foa, M.; Bollettino Scientifico della Facolta di Chimica Industriale di Bologna 1965, V23(2-3), P89-98.

Safety Data

• Hazard Symbols: Xn
• Risk Codes: R22;R41
• Safety Description: S26;S39

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Serious eye damage	Eye Dam.	1	H318
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2A	H319