- 4H-PYRAN-4-ONE
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- $1.10 / 1g
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2025-11-18
- CAS:108-97-4
- Min. Order: 1g
- Purity: 99.00%
- Supply Ability: 100 Tons Min
- 4H-PYRAN-4-ONE
-
- $0.00 / 1kg
-
2025-04-04
- CAS:108-97-4
- Min. Order: 1kg
- Purity: 98%
- Supply Ability: 1Ton
- 4H-PYRAN-4-ONE
-
- $1.00 / 1KG
-
2019-12-20
- CAS:108-97-4
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: KG/T
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| | 4H-PYRAN-4-ONE Basic information |
| Product Name: | 4H-PYRAN-4-ONE | | Synonyms: | 4H-PYRAN-4-ONE;GAMMA-PYRONE;GAMMA-PYRONE, 4-PYRONE;PYRAN-4-ONE;4H-Pyran, 4-oxo-;4H-PYRAN-4-ONE, 98+%;4-Pyrone;Pyrocoman | | CAS: | 108-97-4 | | MF: | C5H4O2 | | MW: | 96.08 | | EINECS: | 203-634-8 | | Product Categories: | | | Mol File: | 108-97-4.mol |  |
| | 4H-PYRAN-4-ONE Chemical Properties |
| Melting point | 32-34 °C(lit.) | | Boiling point | 210-215 °C(lit.) | | density | 1.20 | | refractive index | 1.5238 | | Fp | 214 °F | | storage temp. | 2-8°C | | solubility | Slightly soluble in water, soluble in alcohol and oils. | | form | clear liquid | | color | Light yellow to Brown | | Odor | Warm, slight ly pungent, hay-like herbaceous odor of moderate to poor tenacity. | | BRN | 105293 | | Stability: | Polymerizes under exposure to air (oxygen) and alkali. Turns darker brown, and its odor fades. | | InChI | 1S/C5H4O2/c6-5-1-3-7-4-2-5/h1-4H | | InChIKey | CVQUWLDCFXOXEN-UHFFFAOYSA-N | | SMILES | O=C1C=COC=C1 | | LogP | -0.628 (est) | | CAS DataBase Reference | 108-97-4 |
| Safety Statements | 22-24/25 | | WGK Germany | 3 | | F | 3-8-10 | | HS Code | 2932.99.9090 | | Storage Class | 11 - Combustible Solids |
| | 4H-PYRAN-4-ONE Usage And Synthesis |
| Uses | 4H-Pyran-4-one was used in the synthesis of probes grafted on the lipid headgroups. | | Preparation | 1) from Diethylacetone dioxalate by cyclization to Chelidonic acid (gamma-Pyrone-
2,6-dicarboxylic acid). The acid yields 4H-Pyran-4-one by decarboxylation.
2) by heating of I-Methoxypent-l -en-3-yn-5-
al diethylacetal with Methanol and water,
using Mercuric sulfate or Sulfuric acid
catalyst.
| | Definition | ChEBI: A pyranone that is 4H-pyran substituted by an oxo group at position 4. | | Synthesis | Example 1 (Synthesis of pyran-4-one): In a 10 mL glass reaction flask fitted with a stirring device and a dropping funnel, 1.0 g (4.8 mmol) of 1,1,5,5-tetramethoxypentan-3-one (CAS: 159015-78-8) was added. Under cooling in an ice bath, 1.2 mL (14.1 mmol) of 12 mol/L hydrochloric acid solution was slowly added dropwise to the reaction flask. After the dropwise addition, the reaction mixture was stirred at room temperature for 4 hours. Upon completion of the reaction, the reaction solution was analyzed by gas chromatography (internal standard method) to confirm the formation of 0.45 g (yield: 97%) of pyran-4-one. | | Purification Methods | Purify -pyrone by vacuum distillation; the distillate crystallises and is hygroscopic. It is non-steam vola | | References | [1] Patent: EP1700853, 2006, A1. Location in patent: Page/Page column 12 |
| | 4H-PYRAN-4-ONE Preparation Products And Raw materials |
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