https://ntp.niehs.nih.gov/go/8222

Parathion: Target Organs and Levels of Evidence for TR-070

Bioassay of Parathion for Possible Carcinogenicity (CASRN 56-38-2)

Chemical (Study Title)
CASRN
Peer Review Date Route/Exposure Levels Study Laboratory
Parathion
56-38-2
08/31/1978 Dosed-Feed
MR: 0,32,63 (AVG), FR: 0,23,45 (AVG), M: 0,80,160 PPM/50 PER GROUP
Gulf South Research Institute

Levels of Evidence

Male Rats: Equivocal
Type Organ/Tissue (Lesion)
Neoplastic Lesions
  • Adrenal Gland Cortex: ADENOMA OR CARCINOMA
Female Rats: Equivocal
Type Organ/Tissue (Lesion)
Neoplastic Lesions
  • Adrenal Gland Cortex: ADENOMA OR CARCINOMA
Male Mice: Negative
Female Mice: Negative