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Diethylstilbestrol

CAS Number

56-53-1

Synonym

Antigestil; Bufon; Comestrol; DEB; DES; Distilbene; Estrobene; Fonatol; Grafestrol; Iscovesco; Microest; Milestrol; Oestrogenine; Oestromenin; Palestrol; Serral; Sibol; Stilbetin; Stilboefral; Stilboestrol; Stilkap; Synestrin; Synthoestrin; Trans-diethylstilbesterol

Occurrence/Use

Veterinary medicine (canine incontinence). Formerly used in medicine to prevent spontaneous abortion, treat prostate cancer and breast cancer; marketing in US ended in 1997. Formerly used as growth hormone in beef and poultry industries (phased out in late 1970s).

Diethylstilbestrol

Cancer Potency Information

Latest Criteria: 
Proposition 65 NSRLs/MADLs
Inhalation Unit Risk (μg/cubic meter)-1: 
1.0 E-1
Inhalation Slope Factor (mg/kg-day)-1: 
3.5 E+2
Oral Slope Factor (mg/kg-day)-1: 
3.5 E+2
Comments/References: 

Proposition 65

Chemical Status

Cancer: 
Currently listed
Reproductive Toxicity: 
Currently listed

Cancer

Listed for: 
Cancer
Date of Listing: 
02/27/1987
Basis for Listing: 
Labor Code

Reproductive Toxicity

Listed for: 
Developmental Toxicity
Developmental Toxicity
Date of Listing: 
07/01/1987
Basis for Listing: 
Formally Required

Safe Harbor Levels

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

Documents, Presentations, and Publications

Cancer: 

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