5-Methylisoxazole

What is 5-Methylisoxazole?

5-methyl-Isoxazole is a useful isoxazole derivative and building block. Upon pyrolysis, 5-methyl-Isoxazole forms a ketonitrile.

Boiling point:	122°C
Density	1.018
refractive index	n20/D 1.438(lit.)
Flash point:	30°C
storage temp.	under inert gas (nitrogen or Argon) at 2-8°C
form	clear liquid
pka	-1.68±0.50(Predicted)
color	Colorless to Light yellow
BRN	104680
CAS DataBase Reference	5765-44-6(CAS DataBase Reference)
NIST Chemistry Reference	Isoxazole, 5-methyl-(5765-44-6)
EPA Substance Registry System	Isoxazole, 5-methyl- (5765-44-6)

Signal word	Warning
Pictogram(s)	Flame Flammables GHS02
GHS Hazard Statements	H226:Flammable liquids
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P243:Take precautionary measures against static discharge. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool.