4-Oxo-4H-1-benzopyran-2-carboxylic acid
- Product Name
- 4-Oxo-4H-1-benzopyran-2-carboxylic acid
- CAS No.
- 4940-39-0
- Chemical Name
- 4-Oxo-4H-1-benzopyran-2-carboxylic acid
- Synonyms
- lp-1;atremon;CHROMOCARB;chromocarbe;TIMTEC-BB SBB003660;LABOTEST-BB LT00454887;chromonecarboxylicacid;2-Chromonecarboxylic acid;CHROMONE-2-CARBOXYLIC ACID;Chromone-2-carboxilic acid
- CBNumber
- CB6322423
- Molecular Formula
- C10H6O4
- Formula Weight
- 190.15
- MOL File
- 4940-39-0.mol
4-Oxo-4H-1-benzopyran-2-carboxylic acid Property
- 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
- form
- Powder
- pka
- 2.28±0.20(Predicted)
- color
- White to beige
- Water Solubility
- sparingly soluble
- Merck
- 14,2237
- BRN
- 146442
- CAS DataBase Reference
- 4940-39-0(CAS DataBase Reference)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36-37/39
- WGK Germany
- 3
- RTECS
- DJ2476000
- Hazard Note
- Irritant
- HS Code
- 29329990
- Toxicity
- LD50 intraperitoneal in mouse: 585mg/kg
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 189782
- Product name
- 4-Oxo-4H-1-benzopyran-2-carboxylic acid
- Purity
- 97%
- Packaging
- 5g
- Price
- $47.9
- Updated
- 2024/03/01
- Product number
- O0290
- Product name
- Chromone-2-carboxylic Acid
- Purity
- >98.0%(HPLC)(T)
- Packaging
- 5g
- Price
- $170
- Updated
- 2024/03/01
- Product number
- O0290
- Product name
- Chromone-2-carboxylic Acid
- Purity
- >98.0%(HPLC)(T)
- Packaging
- 25g
- Price
- $605
- Updated
- 2024/03/01
- Product number
- A13552
- Product name
- Chromone-2-carboxylic acid, 97%
- Packaging
- 5g
- Price
- $48.8
- Updated
- 2023/06/20
- Product number
- A13552
- Product name
- Chromone-2-carboxylic acid, 97%
- Packaging
- 25g
- Price
- $152
- Updated
- 2023/06/20
4-Oxo-4H-1-benzopyran-2-carboxylic acid Chemical Properties,Usage,Production
Chemical Properties
white to light yellow crystal powder
Uses
vascular protectant
Uses
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.
Uses
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.
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.
4-Oxo-4H-1-benzopyran-2-carboxylic acid Preparation Products And Raw materials
Raw materials
Preparation Products
4-Oxo-4H-1-benzopyran-2-carboxylic acid Suppliers
View Lastest Price from 4-Oxo-4H-1-benzopyran-2-carboxylic acid manufacturers
- Product
- 4-Oxo-4H-1-benzopyran-2-carboxylic acid 4940-39-0
- Price
- US $0.01-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50 tons
- Release date
- 2020-04-27
- Product
- 4-Oxo-4H-1-benzopyran-2-carboxylic acid 4940-39-0
- Price
- US $1.10/g
- Min. Order
- 1g
- Purity
- 99.00%
- Supply Ability
- 100 Tons Min
- Release date
- 2021-10-29
- Product
- 4-Oxo-4H-1-benzopyran-2-carboxylic acid 4940-39-0
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 95%
- Supply Ability
- 500KG
- Release date
- 2018-08-19