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

More

Less

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)

More

Less

Safety

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

More

Less

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.

More

Less

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

More

Less

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

More

Less

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

J & K SCIENTIFIC LTD.

Tel: 010-82848833 400-666-7788
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Shanghai Hanhong Scientific Co.,Ltd.

Tel: 021-54306202 13764082696
Email: info@hanhongsci.com
Country: China
ProdList: 42958
Advantage: 64

Chemsky (shanghai) International Co.,Ltd

Tel: 021-50135380
Email: shchemsky@sina.com
Country: China
ProdList: 15402
Advantage: 60

SynAsst Chemical.

Tel: 021-60343070
Fax: 021-35122006
Country: China
ProdList: 12740
Advantage: 55

Xunteng International Trading Co.,Limited

Tel
Country: China Hong Kong
ProdList: 878
Advantage: 55

Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.

Tel: 025-66113011 18112977050
Email: cb6@aikonchem.com
Country: China
ProdList: 16684
Advantage: 50

Sigma-Aldrich

Tel: 021-61415566 800-8193336
Email: orderCN@merckgroup.com
Country: China
ProdList: 51456
Advantage: 80

Amadis Chemical Company Limited

Tel: 571-89925085
Fax: 0086-571-89925065
Email: sales@amadischem.com
Country: China
ProdList: 131957
Advantage: 58

Shanghai Jizhi Biochemical Technology Co. Ltd.

Tel: 4009004166/18616739031 18616739031
Email: 3007523370@qq.com
Country: China
ProdList: 52693
Advantage: 58

TOSUN PHARM

Tel: 020-61855200 13326451905
Email: 260366801@qq.com
Country: China
ProdList: 7774
Advantage: 58

More

Less

View Lastest Price from 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid 499-78-5
Price: US $1.00-2.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 100000KG
Release date: 2024-07-26

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