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5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid

5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid Structure
  • ₹14906.03 - ₹55965.25
  • Product name: 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid
  • CAS: 499-78-5
  • MF: C6H4O5
  • MW: 156.09
  • EINECS:207-891-7
  • MDL Number:MFCD03085981
  • Synonyms:5-Hydroxy-4-oxo-;5-hydroxy-4-keto-pyran-2-carboxylic acid;5-hydroxy-4-oxo-pyran-2-carboxylic acid;5-hydroxy-4-oxopyran-2-carboxylic acid;5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid(SALTDATA: FREE);2-Carboxy-5-hydroxy-4-pyrone, Comenic acid;Comenic acid;5-hydroxy-4-pyrone-2-carboxylic acid
Price2 Properties Safety Information Description
2 prices
Selected condition：

Brand

  • Sigma-Aldrich(India)

Package

  • 1G
  • 5G
  • ManufacturerSigma-Aldrich(India)
  • Product number681970
  • Product description5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid 97%
  • Packaging1G
  • Price₹14906.03
  • Updated2022-06-14
  • Buy
  • ManufacturerSigma-Aldrich(India)
  • Product number681970
  • Product description5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid 97%
  • Packaging5G
  • Price₹55965.25
  • Updated2022-06-14
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
Sigma-Aldrich(India) 681970 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid 97% 1G ₹14906.03 2022-06-14 Buy
Sigma-Aldrich(India) 681970 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid 97% 5G ₹55965.25 2022-06-14 Buy

Properties

Melting point :284-294 °C
Boiling point :240.29°C (rough estimate)
Density :1.5720 (rough estimate)
refractive index :1.6400 (estimate)
pka :1.70±0.20(Predicted)
Water Solubility :5.1g/L(25 ºC)
EPA Substance Registry System :4H-Pyran-2-carboxylic acid, 5-hydroxy-4-oxo- (499-78-5)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning GHS hazard pictograms P264, P270, P301+P312, P330, P501
Precautionary statements:
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

Building block for an intramolecular olefin-α-pyrone cycloaddition providing the colchicine ring skeleton.

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Suppliers and manufacturers

Shaanxi Dideu Medichem Co. Ltd
5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid
₹1.00 /1KG
5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid CAS:499-78-5
CLEARSYNTH LABS LTD.
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PT CHEM GROUP LIMITED
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China National Standard Pharmaceutical Corporation Limited
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