National Toxicology Program

National Toxicology Program

Testing Status of beta-Sitosterol - M980040


CASRN: 83-46-5

Formula: C29-H50-O

Synonyms/Common Names

  • alpha-dihydrofucosterol
  • alpha-Phytosterol
  • 24beta-Ethylcholesterol
  • Cinchol
  • Cupreol
  • 22,23-Dihydrostigmasterol
  • Harzol
  • Nimbosterol
  • Prostasal
  • Quebrachol
  • Rhamnol
  • Sito-Lande
  • Sitosterin
  • SKF 14463
  • Stigmast-5-en-3-ol, (3beta) (9CI)
  • Stigmasterol, 22,23-dihydro-

Known Uses

Used as a cholesterol-lowering drug; used as dietary supplement for the treatment of a variety of conditions. Associated with tobacco: reported either as a natural component of tobacco, pyrolysis product (in tobacco smoke), or additive for one or more types of tobacco products.

Chemical Properties

Toxicity Effects (HSDB)

Genetic Toxicology

  • Micronucleus  (A11335)  Completed 
    • Rats: Fischer 344
    • Male Negative 
  • Micronucleus  (A42271)  Completed 
    • Mice: B6C3F1
    • Male Negative 
  • Salmonella  (A84227)  Completed 
    •  Negative 
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.