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Alfa Aesar™ Isoxazole-5-carboxylic acid, 98%

$301.64 - $1,294.99

Chemical Identifiers

Chemical Name or Material Isoxazole-5-carboxylic acid
CAS 21169-71-1
Molecular Formula C4H3NO3
Formula Weight 113.07g/mol
MDL Number MFCD00156151
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA1373906

 
alfa aesar™
A13739-06
5g Each for $301.64

AAA1373914

 
alfa aesar™
A13739-14
25g Each for $1,294.99
Description & Specifications

Specifications

Melting Point 141° to 144°C
Quantity 5g
Chemical Name or Material Isoxazole-5-carboxylic acid
CAS 21169-71-1
Assay 98%
Molecular Formula C4H3NO3
Formula Weight 113.07g/mol
MDL Number MFCD00156151
Health Hazard 1 Warning
Health Hazard 2 GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Health Hazard 3 GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

Applications
Reaction conditions were found to allow the exclusive formation of isoxazole-5-carboxylic acid derivatives by conjugate addition, in acidic medium, of hydroxylamine to β-alkoxyvinyl trichloromethyl ketone in synthesis and reactivity of isoxazoles. Isoxazole-5-carboxylic acid participates in the Synthesis and evaluation of acylguanidine FXa inhibitors. 1, 1, 1-trichloro-4-methoxy-3-penten-2-one postulated in the preparation of isoxazole-5-carboxylic acid from trichloroacetyl chloride, ethyl vinyl ether and hydroxylamine is developed in a fully saturated nitrogen atom theerefore there is no possibility of conjugation with 4- substituents.

Solubility
Slightly soluble in water.

Notes
Moisture Sensitive. Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from strong oxidizing agents, reducing agents, bases.

Safety and Handling

Warning

GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.