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Alfa Aesar™ Chromone-2-carboxylic acid, 97%

$56.82 - $626.46

Chemical Identifiers

Chemical Name or Material Chromone-2-carboxylic acid
CAS 4940-39-0
Molecular Formula C10H6O4
Formula Weight 190.15g/mol
MDL Number MFCD00006838
Beilstein 146442
Merck Index 14,2237
Synonym Chromocarb; 4-Oxo-4H-1-benzopyran-2-carboxylic acid
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA1355206

 
alfa aesar™
A13552-06
5g Each for $56.82

AAA1355214

 
alfa aesar™
A13552-14
25g Each for $202.15

AAA1355222

 
alfa aesar™
A13552-22
100g Each for $626.46
Description & Specifications

Specifications

Melting Point ≈260°C (dec.)
Quantity 5g
Chemical Name or Material Chromone-2-carboxylic acid
CAS 4940-39-0
Assay 97%
Molecular Formula C10H6O4
Formula Weight 190.15g/mol
MDL Number MFCD00006838
Beilstein 146442
Merck Index 14,2237
Synonym Chromocarb; 4-Oxo-4H-1-benzopyran-2-carboxylic acid
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.
RTECS Number DJ2476000

Applications
Chromone-2-carboxylic acid is used in the cyclic form 3′-oxopyrazolidino[4′,5′∶2, 3]-chroman-4-one, gives the azide of chromone-2-carboxylic acid, the curtius rearrangement of which is used to synthesize a number of 2-acylaminochromones and it is an orally active antiallergic agent.

Solubility
Soluble in alcohol, water, DMSO, hot methanol, and ethanol.

Notes
Keep container tightly closed. Store away from oxidizing agents.

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.