grade
purum
assay
≥97.0% (GC)
contains
~1% 2,6-di-tert-butyl-4-methylphenol as stabilizer
refractive index
n20/D 1.472
bp
86-88 °C/12 mmHg (lit.)
density
1.119 g/mL at 25 °C (lit.)
storage temp.
2-8°C
SMILES string
C=C1CCOC1=O
InChI
1S/C5H6O2/c1-4-2-3-7-5(4)6/h1-3H2
InChI key
GSLDEZOOOSBFGP-UHFFFAOYSA-N
Application
强反应性 Michael 受体；α-亚甲基-γ-丁内酯环系存在于许多具有生物学意义的天然产物中
signalword
Warning
hcodes
Hazard Classifications
Aquatic Chronic 3 - Flam. Liq. 3 - Skin Sens. 1
存储类别
3 - Flammable liquids
flash_point_f
98.6 °F - closed cup
flash_point_c
37 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
新产品
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Francesca Cateni et al.
European journal of medicinal chemistry, 41(2), 192-200 (2005-12-22)
The synthesis of a series of alpha-methylene-gamma-butyrolactones (compounds 4a, 4b, 6-12, 16, 17) and alpha,beta-unsaturated-delta-lactones (compounds 19-23, 25, 26) starting from 4,4-dimethyldihydrofuran-2,3-dione (1) has been described. Their chemical structures were assigned by spectroscopic evidence. These new compounds exhibited significantly different
Sébastien Fuchs et al.
Photochemistry and photobiology, 86(3), 545-552 (2010-02-02)
(+) and (-) alpha-methylene-hexahydrobenzofuranone derivatives with a stereochemically pure cis ring junction were used as models of sesquiterpene lactones to study their photoreactivity toward thymidine. After 313 nm irradiation of a deoxygenated acetone solution of lactone models and thymidine, six
E Rozas-Muñoz et al.
Actas dermo-sifiliograficas, 103(6), 456-477 (2012-01-06)
Allergic contact dermatitis due to plants is common. Potentially allergenic plants and plant products are found in many everyday environments, such as the home, the garden, the workplace, and recreational settings. By improving our knowledge of allergenic plant-derived chemical compounds