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L-Tryptophan (73-22-3)

DOI: https://doi.org/10.22427/NTP-DATA-DTXSID5021419

Study Results

Chronic Bioassay Level of Evidence

An overview of chronic evidence from Rats studies.
Rats
View
  • Negative, Male, Rats
View
  • Negative, Female, Rats
An overview of chronic evidence from Mice studies.
Mice
View
  • Negative, Male, Mice
View
  • Negative, Female, Mice

Genetic Toxicology

An overview of Genetic Toxicology Mammalian Cell Mutagenicity study conclusions related to L-Tryptophan (73-22-3).
Mammalian Cell Mutagenicity
View
  • Equivocal
An overview of Genetic Toxicology Mammalian Cell Cytogenetics study conclusions related to L-Tryptophan (73-22-3).
Mammalian Cell Cytogenetics
CA SCE
An overview of Genetic Toxicology Bacterial Mutagenicity study conclusions related to L-Tryptophan (73-22-3).
Bacterial Mutagenicity
View
  • Negative

Citation Information

NTP. L-Tryptophan (73-22-3). Chemical Effects in Biological Systems (CEBS). Research Triangle Park, NC (USA): National Toxicology Program (NTP).

Related Links

Publications

TR-071 Bioassay of L-Tryptophan for Possible Carcinogenicity (CASRN 73-22-3)
Zeiger, E., Anderson, B., Haworth, S., Lawlor, T., and Mortelman, K. Salmonella Mutagenicity Tests V. Results from the Testing of 311 Chemicals Environ. Molec. Mutagen. Vol. 19 (Suppl 21) (1992) 2-141

Study Data

Protocol

Toxicity and Carcinogenicity Studies

Evaluation of the Chronic Toxicity and Carcinogenicity of L-Tryptophan (73-22-3) in Male F344 Rats Exposed via Dosed Feed
Individual Animal Data
Evaluation of the Chronic Toxicity and Carcinogenicity of L-Tryptophan (73-22-3) in Female F344 Rats Exposed via Dosed Feed
Individual Animal Data
Evaluation of the Chronic Toxicity and Carcinogenicity of L-Tryptophan (73-22-3) in Male B6C3F1 Mice Exposed via Dosed Feed
Individual Animal Data
Evaluation of the Chronic Toxicity and Carcinogenicity of L-Tryptophan (73-22-3) in Female B6C3F1 Mice Exposed via Dosed Feed
Individual Animal Data
Protocol

Genetic Toxicology Studies

Genetic Toxicity Evaluation of L-Tryptophan in Salmonella/E.coli Mutagenicity Test or Ames Test. Study 763523
Summary Data

DTT Data Collections