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Sterigmatocystin

CAS Number

10048-13-2

Synonym

STC; 3a,12c-dihydro-8-hydroxy-6-methoxyfuro[3',2':4,5)furo[2,3-c]xanthen-7-one; 7h-furo(3',2':4,5)furo(2,3-c)xanthen-7-one,3a,12c-dihydro-8-hydroxy-6-methoxy-, (3ar-cis)

Occurrence/Use

Produced by fungi in genus Aspergillus; found in water-damaged buildings, crusts of molded cheeses, moldy or low-quality food and animal feed

Cancer Potency Information

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

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

 

Maekawa et al. 1979; Ohtsubo et al. 1978; Terao et al. 1978; Purchase & Van der Watt 1970.

Proposition 65

Chemical Status

Cancer: 
Currently listed

Cancer

Listed as causing: 
Cancer
Date of Listing: 
04/01/1988
Basis for Listing: 
State's Qualified Experts

Safe Harbor Levels

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

Documents, Presentations, and Publications

Cancer: