Structure-toxicity relationships of selected nitrogenous heterocyclic compounds

Abstract

A series of eleven nitrogen-containing heterocyclic compounds, which may be potentially associated with aqueous effluents from coal conversion technologies, were examined to determine the relationships between theirn-octanol/H₂O partition coefficients, molecular weights, boiling points, and their toxicity monitored as reproduction impairment toTetrahymena pyriformis. Toxicity increases linearly with increased partition coefficient, molecular weight, and boiling point. All of these parameters increase with increased alkyl and ring addition.