Identification
CAS Number
497-23-4Name
2(5H)-FuranoneSynonyms
2[5H]-furanone 2-Buten-1,4-olide 2-Butenoic acid γ-lactone 2-Butenoic acid, 4-hydroxy-,γ-lactone 2-Butenoic acid-γ-lactone 4-Hydroxy-2-butenoic acid γ-lactone 4-Hydroxycrotonic acid γ-lactone 5-Hydrofuran-2-one Furan-2(5H)-one T5OV EHJ 2 -Furanone 2-Buten-1,4-olide,γ-Crotonolactone 2-buten-4-olide 2-Butenoic acid, 4-hydroxy-,γ-lactone 2-Butenoic acid-γ-lactone 2-butenolide 2-oxo-2,5-dihydrofuran 4-hydroxy-2-butenoic acid lactone 5H-furan-2-one but-2-en-4-olide butenolide Crotonic acid, 4-hydroxy-, γ-lactone (6CI,7CI) crotonolactone Furan-2(5H)-one ; 2-Buten-1,4-olide Isocrotonolactone α,β-crotonolactone γ-Crotolactone γ-Crotonolactone γ-Crotonolactone γ-hydroxycrotonic acid lactone γ-Hydroxycrotonic acid lactone δ,α,β-ButenolideMolecular Structure
SMILES
O=C1OC/C=C/1StdInChI
InChI=1S/C4H4O2/c5-4-2-1-3-6-4/h1-2H,3H2StdInChIKey
VIHAEDVKXSOUAT-UHFFFAOYSA-NMDL Number
MFCD00005376Beilstein Registry Number
383585EINECS Number
207-839-3Molecular Formula
C4H4O2Molecular Weight
84.07Properties
Appearance
Light yellow to brown red liquidMelting Point
4-5 °C(lit.)Flash Point
101 °CBoiling Point
86-87 °C/12 mmHg(lit.)Density
1.185 g/mL at 25 °C(lit.)Refractive Index
n20/D 1.469(lit.)Safety Data
Symbol
GHS07Signal Word
WarningHazard Statements
H315-H319-H335Precautionary Statements
P261-P305 + P351 + P338Personal Protective Equipment
dust mask type(N95) US, Eye Shields, GlovesHazard Codes (Europe)
XiRisk Statements (Europe)
36/37/38Safety Statements (Europe)
26WGK Germany
3RTECS
LU3453000Specifications and Other Information of Our 2(5H)-Furanone CAS 497-23-4
Identification Methods
HNMR, GCAssay
97% minKnown Application
Used as a reagent in Michael reaction or Michael-Aldol reaction.Productivity
100kg/monthGeneral View of Doccuments
2(5H)-Furanone CAS 497-23-4 HNMR and GC
![Structure of [C16MIM]Br CAS 132361-22-9](https://www.watson-int.com/wp-content/uploads/2015/12/Structure-of-C16MIMBr-CAS-132361-22-9.png "Structure of [<span class=\"caps\">C16MIM</span>]Br <span class=\"caps\">CAS</span> 132361-22-9")
