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

Flash point:

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.

InChIKey

CVQUWLDCFXOXEN-UHFFFAOYSA-N

LogP

-0.628 (est)

CAS DataBase Reference

108-97-4

Safety Information

Safety Statements 

22-24/25

WGK Germany 

3

F 

3-8-10

HS Code 

2932.99.9090

MSDS

• Language:English Provider:SigmaAldrich

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.

Purification Methods

Purify -pyrone by vacuum distillation; the distillate crystallises and is hygroscopic. It is non-steam vola

4H-PYRAN-4-ONE(108-97-4)Related Product Information

• 2,6-Dimethyl-4H-pyran-4-one
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• Kojic acid
• Maltol propionate
• 3-Hydroxy-2-methyl-4H-pyran-4-one
• 4H-Pyran-4-one,2-ethyl-3-hydroxy
• 4-O-BETA-D-GULCOSYL-5-O-METHYLVISAMMINOL
• Warfarin
• Isorhamnetin
• 3-Chromanone
• NABILONE-DEA SCHEDULE II
• Scopoletin
• DIHYDROKAVAIN
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• (+/-)-6-PENTYLTETRAHYDRO-2H-PYRAN-2-ONE
• FLAVONE
• Difenacoum
• TETRAHYDRO-6-PROPYL-2H-PYRAN-2-ONE