ChemicalBook--->CAS DataBase List--->764-40-9

764-40-9

764-40-9 Structure

764-40-9 Structure
IdentificationBack Directory
[Name]

2,4-Pentadienal
[CAS]

764-40-9
[Synonyms]

2,4-Pentadienal
penta-2,4-dienal
1,3-Pentadiene-5-one
penta-2,4-dienal USP/EP/BP
[Molecular Formula]

C5H6O
[MOL File]

764-40-9.mol
[Molecular Weight]

82.1
Chemical PropertiesBack Directory
[Boiling point ]

36-37 °C(Press: 20 Torr)
[density ]

0.845±0.06 g/cm3(Predicted)
[FEMA ]

3217 | 2,4-PENTADIENAL
[Odor]

fruity
[Odor Type]

fruity
[JECFA Number]

1173
[LogP]

0.53
[EPA Substance Registry System]

2,4-Pentadienal (764-40-9)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Manganese dioxide-->Chloromethane-->1,2-PENTADIENE
Hazard InformationBack Directory
[Occurrence]

Reported found in raw and roasted peanut.
[Synthesis]

Can be synthesized from 2-ethoxy-Δ3-dihydropyrone and phosphoric acid; and cis- and trans-isomers can be prepared from the corresponding penta-2,4-dien-1-ol (cis- or trans-form) in methylene chloride in the presence of manganese dioxide.
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