https://ntp.niehs.nih.gov/go/8672

Target Organs and Levels of Evidence for TR-447

Toxicology and Carcinogenesis Studies of Acetonitrile (CASRN 75-05-8) in F344/N Rats and B6C3F1 Mice (Inhalation Studies)

Chemical (Study Title)
CASRN		 Peer Review Date Route/Exposure Levels Study Laboratory
Acetonitrile
75-05-8		 06/21/1994 Inhalation
R: 0, 100, 200, OR 400 PPM M: 0, 50, 100, OR 200 PPM ; 50/GROUP		 Battelle Northwest Laboratory

Levels of Evidence

Male Rats: Equivocal Evidence
Type Organ/Tissue (Lesion)
Neoplastic Lesions
  • Liver: ADENOMA 0/48 1/47 1/48 3/48 OR CARCINOMA 1/48 0/47 0/48 3/48 COMBINED 1/48 1/47 1/48 5/48
Female Rats: No Evidence
Male Mice: No Evidence
Type Organ/Tissue (Lesion)
Non-Neoplastic Lesions
  • FORESTOMACH: SQUAMOUS HYPERPLASIA
Female Mice: No Evidence
Type Organ/Tissue (Lesion)
Non-Neoplastic Lesions
  • FORESTOMACH: SQUAMOUS HYPERPLASIA