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

Product Name: 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid
CAS No.: 499-78-5
Chemical Name: 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid
Synonyms: Comenic acid;5-Hydroxy-4-oxo-;Kojic Impurity 9;Avobenzone Impurity 2;5-hydroxy-4-pyrone-2-carboxylic acid;5-hydroxy-4-oxo-2-pyrancarboxylic acid;5-hydroxy-4-oxopyran-2-carboxylic acid;5-hydroxy-4-oxo-pyran-2-carboxylic acid;5-hydroxy-4-keto-pyran-2-carboxylic acid;4H-Pyran-2-carboxylic acid, 5-hydroxy-4-oxo-
CBNumber: CB5901669
Molecular Formula: C6H4O5
Formula Weight: 156.09
MOL File: 499-78-5.mol

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

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)

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Safety

Hazard Codes: Xn
Risk Statements: 22
WGK Germany: 3

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

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: 681970
Product name: 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid
Purity: 97%
Packaging: 1g
Price: $104
Updated: 2024/03/01

Sigma-Aldrich

Product number: 681970
Product name: 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid
Purity: 97%
Packaging: 5g
Price: $526.8
Updated: 2024/03/01

TRC

Product number: C643500
Product name: ComenicAcid
Packaging: 1g
Price: $130
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FC20547
Product name: Comenic acid
Packaging: 2g
Price: $200
Updated: 2021/12/16

AK Scientific

Product number: 0899AQ
Product name: 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid
Packaging: 1g
Price: $320
Updated: 2021/12/16

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5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid Chemical Properties,Usage,Production

Uses

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

Uses

5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid can be used in the regenerative anti-inflammatory composition

5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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

Canada 1 China 33 China Hong Kong 1 India 1 Switzerland 1 United Kingdom 1 United States 2 Global 40

499-78-5, 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid Related Search:

5-HYDROXY-4-OXO-4H-PYRAN-2-CARBOXYLIC ACID ETHYL ESTER COMANIC ACID Kojic acid 6-(Dipropylamino)-5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid methyl ester 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid

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

5-hydroxy-4-oxo-2-pyrancarboxylic acid

4H-Pyran-2-carboxylic acid, 5-hydroxy-4-oxo-

Kojic Impurity 9

Avobenzone Impurity 2

499-78-5

Heterocycles

Intermediates & Fine Chemicals

Pharmaceuticals

API intermediates