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https://ntp.niehs.nih.gov/go/8224

L-Tryptophan: Target Organs and Levels of Evidence for TR-071

Bioassay of L-Tryptophan for Possible Carcinogenicity (CASRN 73-22-3)

Chemical (Study Title)
CASRN		Peer Review DateRoute/Exposure LevelsStudy Laboratory
L-Tryptophan
73-22-3		03/07/1978Dosed-Feed
0,25000,50000 PPM/35 PER GROUP		Southern Research Institute

Levels of Evidence

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