219126
β-Butyrolactone
98%
Synonym(s):
beta-Butyrolactone, β-Methyl-β-propiolactone, 3-Hydroxybutyric acid β-lactone, 4-Methyl-2-oxetanone
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About This Item
Empirical Formula (Hill Notation):
C4H6O2
CAS Number:
Molecular Weight:
86.09
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
221-330-3
MDL number:
Assay:
98%
Quality Segment
assay
98%
refractive index
n20/D 1.411 (lit.)
bp
71-73 °C/29 mmHg (lit.)
mp
−43.5 °C (lit.)
density
1.056 g/mL at 25 °C (lit.)
functional group
ester
SMILES string
CC1CC(=O)O1
InChI
1S/C4H6O2/c1-3-2-4(5)6-3/h3H,2H2,1H3
InChI key
GSCLMSFRWBPUSK-UHFFFAOYSA-N
General description
β-Butyrolactone undergoes ring opening polymerization in the presence of ethoxy-bridged dinuclear indium catalyst to yield biodegradable polyester poly(hydroxybutyrate). Polymerization of racemic β-butyrolactone in the presence of chiral initiators has been reported. It is versatile building block for organic synthesis.
Application
β-Butyrolactone was used in the preparation of (3-O-[oligo-(3-hydroxybutyrate ester)] fluorescein, fluorescein derivative of poly(3-hydroxybutyrate) via anionic polymerization.
signalword
Warning
hcodes
Hazard Classifications
Carc. 2 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
140.0 °F - closed cup
flash_point_c
60 °C - closed cup
ppe
Eyeshields, Gloves, type ABEK (EN14387) respirator filter
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