4-Oxo-4H-1-benzopyran-2-carboxylic acid
Synonym(s):4-Oxo-4H-1-Benzopyran-2-carboxylic acid;Chromocarb;Chromone-2-carboxylic acid
- CAS NO.：4940-39-0
- Empirical Formula: C10H6O4
- Molecular Weight: 190.15
- MDL number: MFCD00006838
- EINECS: 225-583-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-20 10:51:09
What is 4-Oxo-4H-1-benzopyran-2-carboxylic acid?
Chemical properties
white to light yellow crystal powder
The Uses of 4-Oxo-4H-1-benzopyran-2-carboxylic acid
4-oxo-4H-1-Benzopyran-2-carboxylic Acid acts as an inhibitor of monoamine oxidase A & B. Also functions as a novel type of tyrosine phosphatase 1B inhibitor in studies, due to a structure derived from formylchromone.
The Uses of 4-Oxo-4H-1-benzopyran-2-carboxylic acid
vascular protectant
The Uses of 4-Oxo-4H-1-benzopyran-2-carboxylic acid
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.
Definition
ChEBI: 4-oxo-1-benzopyran-2-carboxylic acid is a member of chromones.
General Description
Nasal absorption of 4-oxo-4H-1-benzopyran-2-carboxylic acid has been investigated in the male Wistar rat.
Properties of 4-Oxo-4H-1-benzopyran-2-carboxylic acid
| Melting point: | 260 °C (dec.)(lit.) |
| Boiling point: | 285.64°C (rough estimate) |
| Density | 1.3366 (rough estimate) |
| refractive index | 1.5280 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | alcohol: soluble |
| pka | 2.28±0.20(Predicted) |
| form | Powder |
| color | White to beige |
| Water Solubility | sparingly soluble |
| Merck | 14,2237 |
| BRN | 146442 |
| CAS DataBase Reference | 4940-39-0(CAS DataBase Reference) |
Safety information for 4-Oxo-4H-1-benzopyran-2-carboxylic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 4-Oxo-4H-1-benzopyran-2-carboxylic acid
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