Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Acute Oral Toxicity Study of n,n,n,n-Tetramethyl-1, 6-hex Anediamine and Guinea Pig Maximization of n,n-Dimethyl-1,3-Propanediamine with Attachement and Cover Letter dated 04/30/1987.
CORP Author Allied-Signal, Inc., Morristown, NJ.;Environmental Protection Agency, Washington, DC. Office of Toxic Substances.
Publisher 5 May 1987
Year Published 1987
Report Number FYI-OTS-0587-0545;
Stock Number OTS-0000545-0
Additional Subjects Toxicity ; Ingestion ; Guinea pigs ; Laboratory animals ; Body weight ; Dose rates ; Gavage ; N,N-Dimethyl-1,3-Propanediamine ; N,N,N',N'-Tetramethyl- 1,6-Hexanediamine (TMHD) ; TMHD ; Acute oral toxicity
Library Call Number Additional Info Location Last
NTIS  OTS-0000545-0 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 10/08/2007
Collation 286p
N,N,N',N'-Tetramethyl- 1,6-Hexanediamine (TMHD), Sample No. 8361-12, was evaluated in male and female Fischer 344 rats for acute oral toxicity. The test material was administered by gavage at dose levels ranging from0.1 to 1.0 mL/kg. One group of animals from each sex was dosed with distilled water and served as controls. TMHD caused 100% lethality in both sexes at dose levels of 0.5 and 1.0 mL/kg. No females died at a dose of 0.1 at/kg while 2 of 5 males (40%) died at this dose level. The oral LOSO for this material in the rat should be considered to be between 0.25 and 0.5 mL/kg for females and 0.1 and 0.5 mL/kg for males. TMHD caused significant depressions in absolute body weight and body weight gains in both sexes. A generalized depression in neuromuscular function occurred following exposure with peripheral, central and autonomic functions being affected. A number of clinical observations and necropsy findings suggested that TMHD was markedly damaging to the gastrointestinal system, particularly the stomach and surrounding organs. Microscopic examination revealed necrosis of the gastrointestinal tract, localized peritonitis and necrosis of the liver and pancreas. Additional lesions were identified in the lung, liver, kidneys, thymus, lymph nodes and spleen which were directly or indirectly related to exposure to TMHD. A no-effect level was not established in this study.