ChemicalBook >> CAS DataBase List >>5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid
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
- Molecular Weight:
- 156.09
- MDL Number:
- MFCD03085981
- MOL File:
- 499-78-5.mol
- MSDS File:
- SDS
Last updated:2023-04-23 13:52:06
| 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
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302 |
| Precautionary statements | P280-P305+P351+P338 |
| Hazard Codes | Xn |
| Risk Statements | 22 |
| WGK Germany | 3 |
5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid price More Price(18)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 681970 | 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid 97% | 499-78-5 | 1g | $104 | 2024-03-01 | Buy |
| Sigma-Aldrich | 681970 | 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid 97% | 499-78-5 | 5g | $526.8 | 2024-03-01 | Buy |
| TRC | C643500 | ComenicAcid | 499-78-5 | 1g | $130 | 2021-12-16 | Buy |
| Biosynth Carbosynth | FC20547 | Comenic acid | 499-78-5 | 2g | $200 | 2021-12-16 | Buy |
| AK Scientific | 0899AQ | 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid | 499-78-5 | 1g | $320 | 2021-12-16 | Buy |
5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 40)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 | fandachem@gmail.com | China | 9352 | 55 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 47465 | 58 |
| Blocksynth Pharmaceutical Technology Co.,Ltd | 0086-19817745290; +8619817745290 | bd@blocksynth.com | China | 5657 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | info@dycnchem.com | CHINA | 52867 | 58 |
| PT CHEM GROUP LIMITED | +86-85511178 +86-85511178 | peter68@ptchemgroup.com | China | 35453 | 58 |
| GIHI CHEMICALS CO.,LIMITED | +8618058761490 | info@gihichemicals.com | China | 49999 | 58 |
| China National Standard Pharmaceutical Corporation Limited | +8615391658522 | overseasales@yongstandards.com | China | 11927 | 58 |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131981 | 58 |
| J & K SCIENTIFIC LTD. | 010-82848833 400-666-7788 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696; | info@hanhongsci.com | China | 42982 | 64 |
499-78-5(5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid )Related Search:
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