https://ntp.niehs.nih.gov/go/7116

1-Phenyl-3-methyl-5-pyrazolone: Target Organs and Levels of Evidence for TR-141

Bioassay of 1-Phenyl-3-methyl-5-pyrazolone for Possible Carcinogenicity (CASRN 89-25-8)

Chemical (Study Title)
CASRN
Peer Review Date Route/Exposure Levels Study Laboratory
1-Phenyl-3-methyl-5-pyrazolone
89-25-8
06/29/1978 Dosed-Feed
R: 0,2500,5000, M: 0,7500,15000 PPM/50 PER GROUP
Litton Bionetics, Inc.

Levels of Evidence

Male Rats: Negative
Female Rats: Negative
Male Mice: Negative
Female Mice: Negative