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: 2023-05-18 11:31:09

4-Oxo-4H-1-benzopyran-2-carboxylic acid Structural

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.