1,3-propiolactone; 1,3-propiolattone; 2-oxetanone; 3-hydroxypropionic acid lactone; 3-hydroxypropionic acid, beta- lactone; 3-idrossipropionico acido,beta-lattone; 3-propanolide; 3-propiolactone; Acido propionico, 3-idrossi-beta lattone; Beta-popiolactone; Beta-popionolactone; Beta-proprolactone; Betaprone; Bpl; Hydacrylic acid,beta.lactone; Hydracrylic acid,beta.lactone; Propanoic acid, 3-hydroxy-,beta-lactone; Propanolide; Propionic acid , 3 idrossi-, beta-lattone; Propionic acid , 3hydroxy-, beta-lactone.