National Toxicology Program

National Toxicology Program

Testing Status of Imidazolidinyl urea - M050017


CASRN: 39236-46-9

Formula: C11-H16-N8-O8

Synonyms/Common Names

  • Imidurea
  • Urea, N,N''-methylenebis(N'-(3-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl)-

Known Uses

Antimicrobial preservative in cosmetics & personal care products

Chemical Properties

Toxicity Effects (HSDB)

Genetic Toxicology

  • Comet Assay  (F66589B)  Completed 
    • Mice
  • Micronucleus  (F66589)  Completed 
    • Mice: B6C3F1
    • Male Negative 
  • Salmonella  (A17918)  Completed 
    •  Positive 
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.