5-Methyl-3-phenylisoxazole-4-carboxylic acid Chemical Properties

Melting point:

192-194 °C(lit.)

Boiling point:

341.49°C (rough estimate)

Density 

1.2621 (rough estimate)

refractive index 

1.4950 (estimate)

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

solubility 

DMSO (Slightly), Methanol (Very Slightly)

pka

2.11±0.32(Predicted)

form 

Solid

color 

White to Off-White

BRN 

164939

CAS DataBase Reference

1136-45-4(CAS DataBase Reference)

EPA Substance Registry System

4-Isoxazolecarboxylic acid, 5-methyl-3-phenyl- (1136-45-4)

Safety Information

Hazard Codes 

Xi

Risk Statements 

22

Safety Statements 

24/25-36/37-22

WGK Germany 

3

RTECS 

NY2750000

TSCA 

Yes

HazardClass 

IRRITANT

HS Code 

2934990002

MSDS

• Language:English Provider:5-Methyl-3-phenylisoxazole-4-carboxylic acid
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

5-Methyl-3-phenylisoxazole-4-carboxylic acid Usage And Synthesis

Chemical Properties

Cream to pale brown solid

Uses

5-Methyl-3-phenylisoxazole-4-carboxylic acid was used in preparation of intermediates for the synthesis of penicillin. It was used for acylation during solid support synthesis of the isoxazolopyridone derivatives.

5-Methyl-3-phenylisoxazole-4-carboxylic acid(1136-45-4)Related Product Information

• Trimethylphenylammonium chloride
• METSULFURON METHYL
• Sulfamethoxazole
• p-Toluic acid
• Thiophanate-methyl
• Kresoxim-methyl
• o-Toluic acid
• Tribenuron methyl
• Phenyl isothiocyanate
• 5-Methylisoxazole
• 5-Methyl-4-isoxazolecarboxylic acid
• 4-(Aminomethyl)benzoic acid
• Isoxazole
• Methyl salicylate
• 2-(Trifluoromethyl)benzoic acid
• Dichloromethylphenylsilane
• Methyl acetate
• m-Toluic acid