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

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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)

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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

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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.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 189782
Product name: 4-Oxo-4H-1-benzopyran-2-carboxylic acid
Purity: 97%
Packaging: 5g
Price: $47.9
Updated: 2024/03/01

TCI Chemical

Product number: O0290
Product name: Chromone-2-carboxylic Acid
Purity: >98.0%(HPLC)(T)
Packaging: 5g
Price: $170
Updated: 2024/03/01

TCI Chemical

Product number: O0290
Product name: Chromone-2-carboxylic Acid
Purity: >98.0%(HPLC)(T)
Packaging: 25g
Price: $605
Updated: 2024/03/01

Alfa Aesar

Product number: A13552
Product name: Chromone-2-carboxylic acid, 97%
Packaging: 5g
Price: $48.8
Updated: 2023/06/20

Alfa Aesar

Product number: A13552
Product name: Chromone-2-carboxylic acid, 97%
Packaging: 25g
Price: $152
Updated: 2023/06/20

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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

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

Americas 1 Belgium 1 Canada 1 China 143 Europe 2 Germany 5 India 25 Japan 2 Poland 2 Switzerland 2 Ukraine 1 United Kingdom 13 United States 36 Global 234

J & K SCIENTIFIC LTD.

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View Lastest Price from 4-Oxo-4H-1-benzopyran-2-carboxylic acid manufacturers

Dideu Industries Group Limited

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

Shaanxi Dideu Medichem Co. Ltd

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

Career Henan Chemical Co

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

4940-39-0, 4-Oxo-4H-1-benzopyran-2-carboxylic acidRelated Search:

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4-oxo-4h-1-benzopyran-2-carboxylicaci

4-OXO-4H-1-BENZOPYRAN-2-CARBOXYLIC ACID

4-OXO-4H-BENZOPYRAN-2-CARBOXYLIC ACID

4-OXO-4H-CHROMENE-2-CARBOXYLIC ACID

CHROMONE-2-CARBOXYLIC ACID

CHROMOCARB

LABOTEST-BB LT00454887

4-Oxo-4H-1-benzopyran-2-carboxylic acid, 97% 5GR

TIMTEC-BB SBB003660

Oxo-4H-1-benzopyran-2-carbox

4-Oxo-4H-1-benzopyran-2-carboxylic acid, 4-Oxo-4H-chromene-2-carboxylic acid

4H-1-Benzopyran-2-carboxylic acid, 4-oxo-

4-Oxo-4H-1-benzopyran-2-carbo

JRH-00401, 4-Oxo-4H-chromene-2-carboxylic acid, 97%

atremon

chromocarbe

chromonecarboxylicacid

lp-1

Chromone-2-carboxylic acid, 97+%

Chromocarb~4-Oxo-4H-1-benzopyran-2-carboxylic acid

2-Chromonecarboxylic acid

CHROMONE-2-CARBOXYLIC ACID (4-OXO-4H-1-BENZOPYRAN-2-CARBOXYLIC ACID)

4-Oxo-4H-1-Benzopyran-2-carboxylic acid, Chromocarb, Chromone-2-carboxylic acid

4-Oxochromene-2-carboxylic acid

Chromone-2-carboxylic acid (4-Oxo-4H-1-benzopyran-2-carboxylic a

4-Oxo-4H-1-benzopyran-2-carboxylic acid,97%

Chromone-2-carboxylicAcid&gt

CHROMONE-2-CARBOXYLIAC ACID

4-Oxo-4H-1-benzopyran-2-carboxylic acid ISO 9001：2015 REACH

Chromone-2-carboxilic acid

Chromone-2-carboxylic acid (Chromocarb)

4940-39-0

C10H5O4

C10H6O4

KETONE

Benzopyrans

Building Blocks

Heterocyclic Building Blocks

Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts

FLUDARENE