3-Methyl-5-phenylisoxazole-4-carboxylic acid
[CAS# 17153-21-8]

Identification

• Name: 3-Methyl-5-phenylisoxazole-4-carboxylic acid
• Molecular Formula: C₁₁H₉NO₃
• Molecular Weight: 203.19
• CAS Registry Number: 17153-21-8
• EC Number: 641-241-7

Properties

• Solubility: Very slightly soluble (0.55 g/L) (25 ºC), Calc.^*
• Density: 1.273±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 189 ºC^**

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

^** Speroni, Giovanni; Gazzetta Chimica Italiana 1953, V83, P192-210.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2A	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H312
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	4	H302
Acute toxicity	Acute Tox.	4	H332