... ppm averaged over an 8-hour work shift.38, 39 n-Butylamine (CAS no. 10 9- 7 3 -9 )Molecular formula: C4H 9 NH2Synonyms and trade names: 1-aminobutane, 1-butanamine, butylamine, mono-n-butylamine ... vertigo, headache, anorexia, stom-ach pains, nausea, vomiting, irritation of the upper respiratory passages, coma, and death. 1,4-Dioxane also caused hepatic and renal lesions, demy-elination, and ... U.S. Department of Health and Human Services. Hazardous substances data bank (HSDB). 199 3. Online database. Bethesda, MD: National Toxicology Information Pro-gram, National Library of Medicine.23....