2-Azetidinone

2-Azetidinone
Names
	IUPAC name 2-Azetidinone
	Other names β-Propiolactam; Azetidin-2-one; 2-Azacyclobutanone
Identifiers
CAS Number	930-21-2;
3D model (JSmol)	Interactive image;
ChemSpider	120480;
ECHA InfoCard	100.156.473
PubChem CID	136721;
CompTox Dashboard (EPA)	DTXSID30239225 ;
	InChI InChI=1S/C3H5NO/c5-3-1-2-4-3/h1-2H2,(H,4,5) Key: MNFORVFSTILPAW-UHFFFAOYSA-N;
	SMILES C1CNC1=O;
Properties
Chemical formula	C3H5NO
Molar mass	71.079 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

2-Azetidinone is a chemical compound with the molecular formula C₃H₅NO. It is the simplest β-lactam and it forms the central core structure of the β-lactam antibiotics.

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