[A13552] CAS 4940-39-0 | Chromone-2-carboxylic acid, 97% | Alfa
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Brand: Alfa Aesar
4940-39-0 | C10H5O4 | 4-oxochromene-2-carboxylate
Chemical Identifiers
CAS
4940-39-0
Molecular Weight (g/mol)
189.15
Synonym
4-oxochromene-2-carboxylate
SMILES
[O-]C(=O)C1=CC(=O)C2=CC=CC=C2O1
InChI Key
RVMGXWBCQGAWBR-UHFFFAOYSA-M
Molecular Formula
C10H5O4
IUPAC Name
4-oxo-4H-chromene-2-carboxylate
Specifications
Appearance (Color)
Dark cream to cream to pale brown or grey-brown
Form
Powder
Assay (Aqueous acid-base Titration)
≥96.0 to ≤104.0%
설명
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.
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.
Other References:
Merck Index:14,2237Beilstein:146442
GHS Hazard and Precautionary Statements
Hazard Statements:H315-H319-H335-H500
GHS H StatementH315-H319-H335Causes skin irritation.Causes serious eye irritation.May cause respiratory irritation.
Precautionary Statements:P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c
Risk & Safety
TSCA:NoRTECS Number:DJ2476000
경고:RUO – Research Use Only
CAS4940-39-0FORMULAC10H5O4EINECS225-583-0MDLMFCD00006838
| Pakage | 25g, 5g |
|---|---|
| brand | Alfa Aesar |
