beta-Propiolactone

CAS Number

57-57-8

Synonym

Betaprone; BPL; Hydroacrylic acid, beta-lactone; 2-Oxetanone; Oxetan-2-one; 3-Propiolacetone; Propanolide; Propiolactone; 3-Propiolactone; Beta-proprolactone

Occurrence/Use

Chemical intermediate in chemical synthesis; medicine (disinfectant for vaccines, tissue grafts, blood plasma, etc.)

Cancer Potency Information

Latest Criteria: Proposition 65 NSRLs/MADLs
Inhalation Unit Risk (μg/cubic meter)-1: 4.0 E-3
Inhalation Slope Factor (mg/kg-day)-1: 1.4 E+1
Oral Slope Factor (mg/kg-day)-1: 1.4 E+1
Comments/References:

OEHHA 1992. Expedited Cancer Potency Values and Proposed Regulatory Levels for Certain Proposition 65 Carcinogens. 

Proposition 65

Chemical Status

Cancer: Currently listed

Cancer

Cancer - Listing Mechanism
State's Qualified Experts
Listed as causing : Listed as causing: Cancer
Date of Listing:

Safe Harbor Levels

No Significant Risk Level (NSRL)
0.05 µg/day
Cancer
Last NSRL/MADL Revision: 1992

Documents, Presentations, and Publications

Cancer: