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: 94838
Advantage: 76

Shanghai Hanhong Scientific Co.,Ltd.

Tel
Country: China
ProdList: 42982
Advantage: 64

Chemsky (shanghai) International Co.,Ltd

Tel: 021-50135380
Email: shchemsky@sina.com
Country: China
ProdList: 15421
Advantage: 60

SynAsst Chemical.

Tel: 021-60343070
Fax: 021-35122006
Country: China
ProdList: 12742
Advantage: 55

Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.

Tel: 025-66113011 18112977050
Email: cb6@aikonchem.com
Country: China
ProdList: 16687
Advantage: 50

Sigma-Aldrich

Tel: 021-61415566 800-8193336
Email: orderCN@merckgroup.com
Country: China
ProdList: 51471
Advantage: 80

Yancheng KangdiSen Pharmaceutical Co., Ltd.

Tel: 13812573443
Fax: -
Email: tongbenwan22@163.com
Country: China
ProdList: 1998
Advantage: 55

Amadis Chemical Company Limited

Tel: 571-89925085
Fax: 0086-571-89925065
Email: sales@amadischem.com
Country: China
ProdList: 131981
Advantage: 58

Shanghai Jizhi Biochemical Technology Co. Ltd.

Tel: 400-400-400-9004166 18616739031
Email: 3007523370@qq.com
Country: China
ProdList: 52712
Advantage: 58

TOSUN PHARM

Tel: 020-61855200 13326451905
Email: 2881290884@qq.com
Country: China
ProdList: 7502
Advantage: 58

Blocksynth Pharmaceutical Technology Co.,Ltd

Tel: 0086-19817745290; +8619817745290
Email: bd@blocksynth.com
Country: China
ProdList: 5658
Advantage: 58

Dayang Chem (Hangzhou) Co.,Ltd.

Tel: 571-88938639 +8617705817739
Fax: +86-571-88938652，+86-571- 88492614
Email: info@dycnchem.com
Country: CHINA
ProdList: 52867
Advantage: 58

CONIER CHEM AND PHARMA LIMITED

Tel: +8618523575427
Email: sales@conier.com
Country: China
ProdList: 49391
Advantage: 58

Shanghai Haohong Pharmaceutical Co., Ltd.

Tel: 4008210725 4008210725
Email: malulu@leyan.com
Country: China
ProdList: 55023
Advantage: 58

Energy Chemical

Tel: 021-58432009 400-005-6266
Fax: 021-58436166
Email: marketing@energy-chemical.com
Country: China
ProdList: 44941
Advantage: 58

Guangzhou Juntang Technology Co., Ltd

Tel: 020-36607679 13502246435
Email: sales@dmstandards.com
Country: China
ProdList: 10951
Advantage: 58

Jiaxing Zhejia Biotechnology Co., LTD

Tel: 0573-85609002
Email: zhejia01@163.com
Country: China
ProdList: 8871
Advantage: 58

Sichuan Yiyan Pharmaceutical Research

Tel: 19949968070
Email: 2904199885@qq.com
Country: China
ProdList: 918
Advantage: 58

Ningbo Zhenyue Pharmaceutical Technology Co., Ltd

Tel: 19817745290
Email: bd@blocksynth.com
Country: China
ProdList: 5644
Advantage: 58

Nanjing Shizhou Biology Technology Co.,Ltd

Tel: 17301488900
Fax: 025-85560043
Email: judy.xia@synzest.com
Country: China
ProdList: 12584
Advantage: 58

Baoji Didu Pharmaceutical and Chemical Co., Ltd

Tel: 17691182729 15991417702
Email: 1065@dideu.com
Country: China
ProdList: 10011
Advantage: 58

Hangzhou FandaChem Co.,Ltd.

Tel: 008657128800458; +8615858145714
Fax: +86-571-56059825
Email: fandachem@gmail.com
Country: China
ProdList: 9341
Advantage: 55

China National Standard Pharmaceutical Corporation Limited

Tel: +8615391658522
Email: overseasales@yongstandards.com
Country: China
ProdList: 11927
Advantage: 58

GIHI CHEMICALS CO.,LIMITED

Tel: +8618058761490
Email: info@gihichemicals.com
Country: China
ProdList: 50000
Advantage: 58

PT CHEM GROUP LIMITED

Tel: +86-85511178 +86-85511178
Email: peter68@ptchemgroup.com
Country: China
ProdList: 35453
Advantage: 58

Shanghai Yubo Biotechnology Co., Ltd.

Tel: --
Fax: --
Email: 344843571@qq.com
Country: CHINA
ProdList: 6322
Advantage: 58

Shanghai Ziqi Biological Technology Co., Ltd.

Tel: --
Fax: --
Email: 2453006496@qq.com
Country: CHINA
ProdList: 6192
Advantage: 58

Shanghai Lianshuobao is Biotechnology Co., Ltd.

Tel: --
Fax: --
Email: lianshuobio@163.com
Country: CHINA
ProdList: 6985
Advantage: 58

Shanghai Hao Zhun Biological Technology Co., Ltd.

Tel: --
Fax: --
Email: info@zzsrm.com
Country: CHINA
ProdList: 6846
Advantage: 58

Shanghai yiji industries Co., Ltd.

Tel: --
Fax: --
Email: yiji01@foxmail.com
Country: China
ProdList: 6294
Advantage: 50

Shanghai Hao Biological Technology Co., Ltd.

Tel: --
Fax: --
Email: shxiyuanbio@163.com
Country: CHINA
ProdList: 6921
Advantage: 58

Suzhou Rovathin Foreign Trade Co.,Ltd

Tel: --
Fax: --
Email: sales@rovathin.com
Country: China
ProdList: 4396
Advantage: 58

Guangzhou WeiBo Chemical Co., Ltd.

Tel: --
Fax: --
Email: weibochem@163.com
Country: China
ProdList: 6187
Advantage: 67

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