- 4-Methyl-2-oxetanone, β-Methylpropiolactone
EC Number: 221-330-3.
PubChem SID: 87563870.
Refractive index n20/D: 1.4100 to 1.4120.
Signal Word: Warning.
Specific gravity (20/20): 1.0480 to 1.0510.
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