5-Chlorobenzoxazole
[CAS# 17200-29-2]

Identification

• Name: 5-Chlorobenzoxazole
• Synonyms: NSC 24984
• Molecular Formula: C₇H₄ClNO
• Molecular Weight: 153.57
• CAS Registry Number: 17200-29-2
• EC Number: 626-358-3

Properties

• Solubility: Very slightly soluble (0.57 g/L) (25 ºC), Calc.^*
• Density: 1.377±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 80-81 ºC (hexane )^**
• Boiling point: 226.3±13.0 ºC (760 torr), Calc.^*
• Flash point: 90.7±19.8 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2013 ACD/Labs)

^** Arisawa, Mieko; Tetrahedron Letters 2011, V52(18), P2344-2347.

Safety Data

• Hazard Symbols: Xn
• Risk Codes: R22;R36/37/38
• Safety Description: S26

Hazard Classification

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