γ-Methylene-γ-butyrolactone

Names

[ Name ]:
γ-Methylene-γ-butyrolactone

[Synonym ]:
MFCD00042762
5-Methylenedihydro-2(5H)-furanone
alpha'-angelica lactone
EINECS 233-004-8
5-methylideneoxolan-2-one
γ-Methylene-γ-butyrolactone
gaMMa-Methylene-gaMMa-butyrolactone

Chemical & Physical Properties

[ Density]:
1.07 g/cm3

[ Boiling Point ]:
186.7ºC at 760 mmHg ，80ºC17 mm Hg(lit.)

[ Melting Point ]:
18ºC

[ Molecular Formula ]:
C₅H₆O₂

[ Molecular Weight ]:
98.09990

[ Flash Point ]:
76.7ºC

[ Exact Mass ]:
98.03680

[ PSA ]:
26.30000

[ LogP ]:
0.83710

[ Vapour Pressure ]:
0.654mmHg at 25°C

[ Index of Refraction ]:
n20/D 1.466(lit.)

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS08

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H317-H334

[ Precautionary Statements ]:
P261-P280-P342 + P311

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
Xn: Harmful;

[ Risk Phrases ]:
R42/43

[ Safety Phrases ]:
23-36/37

[ WGK Germany ]:
3

[ HS Code ]:
2932209090

Synthetic Route

Click to get detail synthetic route

Customs

[ HS Code ]: 2932209090

[ Summary ]:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Articles

Relative thermodynamic stabilities of ?-methylene-?-butyrolactone and ?-angelicalactone.

Tetrahedron 50(6) , 1885-1888, (1994)