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Propylthiouracil

CAS Number

51-52-5

Synonym

6-Propyl-2-thiouracil; 4-hydroxy-2-mercapto-6-propylpyrimidine; 2-mercapto-6-propylpyrimid-4-one; Procasil; Propacil; Propycil; Propyl-thiorist; Propylthiouracil; 6-N-propylthiouracil; 4-propyl-2-thiouracil; 6-propylthiouracil; 6-propyl-2-thiouracil; Propyl-thyracil; Propythiouracil; Prothiurone; Prothycil; Prothyran; Protiural; PTU; Thiuragyl; 2-thio-4-oxo-6-propyl-1,3-pyrimidine; 6-thio-4-propyluracil

Occurrence/Use

Medicine (thyroid inhibitor)

Cancer Potency Information

Latest Criteria: 
Proposition 65 NSRLs/MADLs
Inhalation Unit Risk (μg/cubic meter)-1: 
2.9 E-4
Inhalation Slope Factor (mg/kg-day)-1: 
1.0 E+0
Oral Slope Factor (mg/kg-day)-1: 
1.0 E+0
Comments/References: 

Proposition 65

Chemical Status

Cancer: 
Currently listed
Reproductive Toxicity: 
Currently listed

Cancer

Listed as causing: 
Cancer
Date of Listing: 
01/01/1988
Basis for Listing: 
State's Qualified Experts

Reproductive Toxicity

Listed as causing: 
Developmental Toxicity
Developmental Toxicity
Date of Listing: 
07/01/1990
Basis for Listing: 
Formally Required

Safe Harbor Levels

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

Documents, Presentations, and Publications

Cancer: