ALPHA-PYRONE
- CAS No.
- 504-31-4
- Chemical Name:
- ALPHA-PYRONE
- Synonyms
- 2H-PYRAN-2-ONE;2-Pyrone;Coumalin;α-Pyron;cumalin;-Pyrone;α-pyrone;2-Pyranone;pyran-2-one;α-Pyrone>
- CBNumber:
- CB6766803
- Molecular Formula:
- C5H4O2
- Molecular Weight:
- 96.08
- MDL Number:
- MFCD00006639
- MOL File:
- 504-31-4.mol
- MSDS File:
- SDS
| Melting point | 8-9 °C |
|---|---|
| Boiling point | 102-103 °C20 mm Hg(lit.) |
| Density | 1.197 g/mL at 25 °C(lit.) |
| refractive index |
n |
| Flash point | 94 °C |
| storage temp. | 2-8°C |
| form | Liquid |
| color | Clear yellow to brown |
| Odor | Pleasant hay-like, herbaceous-warm odor |
| BRN | 1511 |
| LogP | -0.645 (est) |
| FDA UNII | 8WW45I202V |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P301+P312-P302+P352-P304+P340-P305+P351+P338 | |||||||||
| Safety Statements | 23-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 8-9-23 | |||||||||
| HS Code | 29322090 | |||||||||
| NFPA 704 |
|
ALPHA-PYRONE price More Price(16)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 463159 | 2H-Pyran-2-one 90% | 504-31-4 | 1g | $243 | 2024-03-01 | Buy |
| TCI Chemical | P1183 | α-Pyrone >98.0%(GC) | 504-31-4 | 1g | $175 | 2024-03-01 | Buy |
| TRC | A345500 | α-Pyrone | 504-31-4 | 10mg | $45 | 2021-12-16 | Buy |
| AK Scientific | X6757 | alpha-Pyrone | 504-31-4 | 250mg | $124 | 2021-12-16 | Buy |
| Activate Scientific | AS145932 | Pyran-2-one 97% | 504-31-4 | 5G | $693 | 2021-12-16 | Buy |
ALPHA-PYRONE Chemical Properties,Uses,Production
Chemical Properties
clear yellow to brown liquid.
Polymerizes easily upon standing, particularly under alkaline conditions.
Very slightly soluble in water, soluble in
alcohol and oils.
Definition
ChEBI: 2H-pyran-2-one is the simplest member of the class of 2-pyranones that is 2H-pyran with an oxo substituent at position 2.
Synthesis Reference(s)
Journal of the American Chemical Society, 90, p. 2318, 1968 DOI: 10.1021/ja01011a020
Organic Syntheses, Coll. Vol. 6, p. 462, 1988
General Description
2H-Pyran-2-one (a-Pyrone) is a heterocyclic building block. Photochemistry of 2H-pyran-2-one has been investigated by laser flash photolysis with infrared detection. Ketene and a bicyclic lactone were obtained as major photoproducts.
Purification Methods
Dissolve -pyrone in Et2O, wash it with brine, dry (Na2SO4), f
ALPHA-PYRONE Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29863 | 58 |
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 | admin@nexconn.com | China | 10406 | 58 |
| Jinan Carbotang Biotech Co.,Ltd. | +8615866703830 | figo.gao@foxmail.com | China | 8497 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28172 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39894 | 58 |
| Nanjing jinheyou Trading Co., Ltd. | 15705188088 | admin@jheyou.com | CHINA | 1268 | 58 |
| Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 | 1026@dideu.com | China | 22793 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | info@dycnchem.com | China | 52849 | 58 |
| GLR Innovations | +91 9891111994 | info@glrgroup.in | India | 4535 | 58 |
| GIHI CHEMICALS CO.,LIMITED | +8618058761490 | info@gihichemicals.com | China | 49984 | 58 |
View Lastest Price from ALPHA-PYRONE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2021-10-30 | ALPHA-PYRONE
504-31-4
|
US $1.10 / g | 1g | 99.00% | 100 Tons Min | Dideu Industries Group Limited | |
 |
2019-11-08 | ALPHA-PYRONE
504-31-4
|
US $0.00 / g | 1g | 98%min | 20kg/month | Nanjing jinheyou Trading Co., Ltd. | |
 |
2019-07-10 | ALPHA-PYRONE
504-31-4
|
US $1.00 / KG | 1KG | 99% | 1ton | Career Henan Chemical Co |
-
- ALPHA-PYRONE
504-31-4
- US $1.10 / g
- 99.00%
- Dideu Industries Group Limited
-
- ALPHA-PYRONE
504-31-4
- US $0.00 / g
- 98%min
- Nanjing jinheyou Trading Co., Ltd.
-
- ALPHA-PYRONE
504-31-4
- US $1.00 / KG
- 99%
- Career Henan Chemical Co
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