Oral and intraperitoneal administration of 2-(4-acetoxyphenyl)-2-chloro-N-methyl- ethylammonium chloride (Compound A), an analogue of phenyl aziridine precursors that occur in the shrub Salsola tuberculatiformis Botsch., had a contraceptive effect on female Wistar rats with a concomitant decrease in total body, uterus, and ovary mass and an increase in adrenal mass. Compound A elicited a Type II difference spectrum and ...