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ChemicalBook > Product Catalogue >Pharmaceutical intermediates >Heterocyclic compound >Pyran compounds >4-Oxo-4H-1-benzopyran-2-carboxylic acid

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

4-Oxo-4H-1-benzopyran-2-carboxylic acid Structure
  • ₹2290 - ₹42900
  • Product name: 4-Oxo-4H-1-benzopyran-2-carboxylic acid
  • CAS: 4940-39-0
  • MF: C10H6O4
  • MW: 190.15
  • EINECS:225-583-0
  • MDL Number:MFCD00006838
  • Synonyms: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
Price6 Properties Safety Information Description
6 prices
Selected condition：

Brand

  • ALFA India
  • TCI Chemicals (India)
  • Sigma-Aldrich(India)

Package

  • 5g
  • 25g
  • 100g
  • ManufacturerALFA India
  • Product numberALF-A13552-06
  • Product descriptionChromone-2-carboxylic acid, 97%
  • Packaging5g
  • Price₹2387
  • Updated2022-05-26
  • Buy
  • ManufacturerALFA India
  • Product numberALF-A13552-14
  • Product descriptionChromone-2-carboxylic acid, 97%
  • Packaging25g
  • Price₹11150
  • Updated2022-05-26
  • Buy
  • ManufacturerALFA India
  • Product numberALF-A13552-22
  • Product descriptionChromone-2-carboxylic acid, 97%
  • Packaging100g
  • Price₹22901
  • Updated2022-05-26
  • Buy
  • ManufacturerTCI Chemicals (India)
  • Product numberO0290
  • Product descriptionChromone-2-carboxylic Acid
  • Packaging5G
  • Price₹8900
  • Updated2022-05-26
  • Buy
  • ManufacturerTCI Chemicals (India)
  • Product numberO0290
  • Product descriptionChromone-2-carboxylic Acid
  • Packaging25G
  • Price₹42900
  • Updated2022-05-26
  • Buy
  • ManufacturerSigma-Aldrich(India)
  • Product number189782
  • Product description4-Oxo-4H-1-benzopyran-2-carboxylic acid 97%
  • Packaging5G
  • Price₹2290
  • Updated2022-06-14
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
ALFA India ALF-A13552-06 Chromone-2-carboxylic acid, 97% 5g ₹2387 2022-05-26 Buy
ALFA India ALF-A13552-14 Chromone-2-carboxylic acid, 97% 25g ₹11150 2022-05-26 Buy
ALFA India ALF-A13552-22 Chromone-2-carboxylic acid, 97% 100g ₹22901 2022-05-26 Buy
TCI Chemicals (India) O0290 Chromone-2-carboxylic Acid 5G ₹8900 2022-05-26 Buy
TCI Chemicals (India) O0290 Chromone-2-carboxylic Acid 25G ₹42900 2022-05-26 Buy
Sigma-Aldrich(India) 189782 4-Oxo-4H-1-benzopyran-2-carboxylic acid 97% 5G ₹2290 2022-06-14 Buy

Properties

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

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning GHS hazard pictograms
Precautionary statements:
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.

Description

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.

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