Chromone-2-carboxylic acid, 97%, Thermo Scientific Chemicals

Product Code	Brand	Quantity
11430044	Thermo Scientific Alfa Aesar A13552.06	5 g
11440044	Thermo Scientific Alfa Aesar A13552.14	25 g
11450044	Thermo Scientific Alfa Aesar A13552.22	100 g

Description

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.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

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.

Chemical Identifiers

• CAS: 4940-39-0
• Molecular Weight (g/mol): 190.154
• InChI Key: RVMGXWBCQGAWBR-UHFFFAOYSA-N
• PubChem CID: 2741
• SMILES: C1=CC=C2C(=C1)C(=O)C=C(O2)C(=O)O

• Molecular Formula: C10H6O4
• MDL Number: MFCD00006838
• Synonym: chromocarb, chromone-2-carboxylic acid, 4-oxo-4h-chromene-2-carboxylic acid, 4-oxo-4h-1-benzopyran-2-carboxylic acid, atremon, chromonecarboxylic acid, lp-1, chromocarb inn:dcf, 2-chromonecarboxylic acid, chromocarbe inn-french
• IUPAC Name: 4-oxochromene-2-carboxylic acid

Specifications

• CAS: 4940-39-0
• Molecular Formula: C10H6O4
• Beilstein: 146442
• Synonym: chromocarb, chromone-2-carboxylic acid, 4-oxo-4h-chromene-2-carboxylic acid, 4-oxo-4h-1-benzopyran-2-carboxylic acid, atremon, chromonecarboxylic acid, lp-1, chromocarb inn:dcf, 2-chromonecarboxylic acid, chromocarbe inn-french
• InChI Key: RVMGXWBCQGAWBR-UHFFFAOYSA-N
• IUPAC Name: 4-oxochromene-2-carboxylic acid
• PubChem CID: 2741
• Percent Purity: 97%

• Melting Point: ∼260°C (decomposition)
• MDL Number: MFCD00006838
• Merck Index: 14,2237
• Solubility Information: Soluble in alcohol,water,DMSO,hot methanol,and ethanol.
• SMILES: C1=CC=C2C(=C1)C(=O)C=C(O2)C(=O)O
• Molecular Weight (g/mol): 190.154
• Formula Weight: 190.15
• Chemical Name or Material: Chromone-2-carboxylic acid

Safety and Handling

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

P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c

H315-H319-H335-H500

missing translation for 'einecsNumber' : 225-583-0

missing translation for 'rtecsNumber' : DJ2476000

missing translation for 'tsca' : No

Recommended Storage : Ambient temperatures

RUO – Research Use Only