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Target Organs and Levels of Evidence for TR-300

Toxicology and Carcinogenesis Studies of 3-Chloro-2-methylpropene (Technical grade containing 5% Dimethylvinyl chloride) (CASRN 563-47-3) in F344/N Rats and B6C3F1 Mice (Gavage Studies)

Chemical (Study Title)
CASRN		 Peer Review Date Route/Exposure Levels Study Laboratory
3-Chloro-2-methylpropene
563-47-3		 11/02/1984 Gavage
R: 0,75,150, M: 0,100,200 MG/KG/50 PER GROUP		 Litton Bionetics, Inc.

Levels of Evidence

Male Rats: Clear Evidence
Type Organ/Tissue (Lesion)
Neoplastic Lesions
  • Forestomach: SQUAMOUS CELL PAPILLOMA 1/50 5/50 30/48; SQUAMOUS CELL CARCINOMA 0/50 0/50 2/48
Female Rats: Clear Evidence
Type Organ/Tissue (Lesion)
Neoplastic Lesions
  • Forestomach: SQUAMOUS CELL PAPILLOMA 1/50 1/50 10/50
Male Mice: Clear Evidence
Type Organ/Tissue (Lesion)
Neoplastic Lesions
  • Forestomach: SQUAMOUS CELL PAPILLOMA 3/49 19/49 30/49; SQUAMOUS CELL CARCINOMA 0/49 5/49 7/49
Female Mice: Clear Evidence
Type Organ/Tissue (Lesion)
Neoplastic Lesions
  • Forestomach: SQUAMOUS CELL PAPILLOMA 0/50 15/48 29/44; SQUAMOUS CELL CARCINOMA 0/50 1/48 2/44